Used BMW 4 Series for sale near Watford
There are 222 used BMW 4 Series for sale from UK dealers within 20 miles of Watford on AskCar, as of 9 November 2026. Typical asking price £17,500 (the median: half cost less, half cost more). The cheapest is £6,495. AskCar lists 1,862 used BMW 4 Series across the UK, from 1,077 dealerships.
The middle half of the 222 cars are priced between £12,500 and £28,000.
As of 9 November 2026, AskCar lists 584,619 cars and vans from 12,676 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.
Price reductions near Watford
87 of the 222 BMW 4 Series within 20 miles of Watford had their price reduced in the last 14 days to 9 November 2026. Of those priced between £1,000 and £60,000, these 8 have the biggest reductions in pounds since AskCar first saw them.
- 2026 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 2,877 miles. Price: £44,671, reduced by £9,329 from £54,000 since AskCar first saw it on 26 August 2026, 75 days ago. Fair price: £2,536 (6%) over the AskCar estimate of £42,135. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Berry Chiswick BMW in Ealing, 12 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2026-817f119b1ab3
- 2026 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, convertible, 2 doors, 4 seats, white. Mileage: 8,397 miles. Price: £45,950, reduced by £7,550 from £53,500 since AskCar first saw it on 28 May 2026, 165 days ago. Above the going rate: £5,125 (12%) over the AskCar estimate of £40,825. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sytner Luton BMW in Luton, 17 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2026-23d6b78be873
- 2026 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, 2 doors, 4 seats, red. Mileage: 12,328 miles. Price: £42,500, reduced by £7,500 from £50,000 since AskCar first saw it on 28 May 2026, 165 days ago. Fair price: £1,737 (4%) over the AskCar estimate of £40,763. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sytner High Wycombe BMW in High Wycombe, 14 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2026-0754d77d5e87
- 2024 BMW 4 Series 3.0 M440i MHT, 369 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 5,592 miles. Price: £47,400, reduced by £5,590 from £52,990 since AskCar first saw it on 7 August 2026, 94 days ago. Fair price: £998 (2%) under the AskCar estimate of £48,398. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Berry Heathrow in Heathrow, 10 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2024-126be86373a9
- 2024 BMW 4 Series 3.0 M440i MHT, 368 bhp, automatic, petrol, 2 doors, 4 seats, blue. Mileage: 18,932 miles. Price: £44,750, reduced by £5,250 from £50,000 since AskCar first saw it on 26 August 2026, 75 days ago. Fair price: £935 (2%) over the AskCar estimate of £43,815. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sytner Maidenhead BMW in Maidenhead, 16 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2024-0058dade04af
- 2026 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, blue. Mileage: 4,569 miles. Price: £39,811, reduced by £5,189 from £45,000 since AskCar first saw it on 26 August 2026, 75 days ago. Fair price: £1,984 (4%) under the AskCar estimate of £41,795. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Berry Chiswick BMW in Ealing, 12 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2026-41a4f5139795
- 2022 BMW 4 Series 3.0 M440d MHT, 335 bhp, automatic, diesel, convertible, 2 doors, 4 seats, blue. Mileage: 18,351 miles. Price: £32,950, reduced by £4,700 from £37,650 since AskCar first saw it on 25 June 2026, 137 days ago. Fair price: £2,313 (6%) under the AskCar estimate of £35,263. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 9 December 2026. Dealer: Car Planet Barnet in Barnet, 11 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2022-d7a023464441
- 2025 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 7,590 miles. Price: £39,400, reduced by £3,590 from £42,990 since AskCar first saw it on 7 August 2026, 94 days ago. Fair price: £1,222 (3%) over the AskCar estimate of £38,178. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Berry Heathrow in Heathrow, 10 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2025-6ad514314b1b
Median asking price by year
| Year | For sale with a price | Median asking price | Middle half priced between |
|---|---|---|---|
| 2022 | 26 | £25,500 | £23,500 to £31,000 |
| 2021 | 20 | £26,000 | £23,000 to £28,500 |
| 2018 | 23 | £17,500 | £12,800 to £19,500 |
| 2017 | 33 | £14,000 | £11,400 to £16,500 |
| 2015 | 26 | £11,000 | £10,100 to £13,000 |
Cars for sale now, page 1 of 3
Best value first: the cars priced furthest below their AskCar estimate come first, and those without one come after. The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 1,805 priced BMW 4 Series adverts on AskCar as of 9 November 2026.
Each car: year, make, model, engine and trim, power, gearbox, fuel, body, doors, colour; mileage; price and its changes; how the price compares with the AskCar estimate; emissions standard and ULEZ compliance where it holds; MOT; dealer, town and distance; AskCar page.
Cheaper cars like each one, with its price history, are on its AskCar page.
- 2021 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, white. Mileage: 56,431 miles. Price: £17,490, reduced by £1,400 from £18,890 since AskCar first saw it on 28 May 2026, 165 days ago. Good value: £4,618 (20%) under the AskCar estimate of £22,108. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 1 May 2027. Dealer: Car Holics in Hillingdon, 10 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-50114104eb76
- 2015 BMW 4 Series 3.0 435d M Sport, 309 bhp, automatic, diesel, convertible, 2 doors, 4 seats, blue. Mileage: 77,000 miles. Price: £10,295, unchanged since AskCar first saw it on 2 November 2026, 7 days ago. Good value: £2,291 (18%) under the AskCar estimate of £12,586. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 14 March 2027. Dealer: Houghton Motors in Houghton Regis, 18 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2015-7369929f3922
- 2016 BMW 4 Series 3.0 435i M Sport, 302 bhp, automatic, petrol, convertible, 2 doors, 4 seats, red. Mileage: 35,514 miles. Price: £16,450, reduced by £1,545 from £17,995 since AskCar first saw it on 25 September 2026, 45 days ago. Good value: £3,505 (17%) under the AskCar estimate of £19,955. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 29 June 2027. Dealer: Crown Motors London in Southall, 11 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2016-8165e09b5976
- 2019 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, blue. Mileage: 75,000 miles. Price: £11,299, unchanged since AskCar first saw it on 27 June 2026, 135 days ago. Good value: £1,964 (14%) under the AskCar estimate of £13,263. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 9 April 2027. Dealer: Field Way Motors in Gerrards Cross, 8 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2019-ad802ebe19af
- 2014 BMW 4 Series 2.0 420i Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, white. Mileage: 71,754 miles. Price: £7,980, reduced by £1,260 from £9,240 since AskCar first saw it on 28 September 2026, 42 days ago. Good value: £1,365 (14%) under the AskCar estimate of £9,345. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 6 December 2026. Dealer: Harlington Motor Company in Hayes, 12 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2014-c2cf06157d81
- 2020 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, blue. Mileage: 19,927 miles. Price: £16,350, reduced by £3,250 from £19,600 since AskCar first saw it on 7 June 2026, 155 days ago. Good value: £2,789 (14%) under the AskCar estimate of £19,139. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 9 June 2027. Dealer: Car Planet Barnet in Barnet, 11 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-74ef8c894940
- 2024 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, white. Mileage: 43,800 miles. Price: £24,295, reduced by £1,200 from £25,495 since AskCar first saw it on 15 September 2026, 55 days ago. Good value: £3,892 (13%) under the AskCar estimate of £28,187. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Car 4 U (LDN) in Harlesden, 11 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2024-ace830fbb4c5
- 2015 BMW 4 Series 3.0 435d M Sport, 309 bhp, automatic, diesel, coupe, 2 doors, 4 seats, black. Mileage: 129,386 miles. Price: £7,495, reduced by £800 from £8,295 since AskCar first saw it on 3 September 2026, 67 days ago. Good value: £1,190 (13%) under the AskCar estimate of £8,685. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 28 November 2026. Dealer: Tenby Car Supermarket in Luton, 19 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2015-c8da74087900
- 2017 BMW 4 Series 2.0 420d, 187 bhp, automatic, diesel, coupe, 2 doors, 4 seats, blue. Mileage: 120,000 miles. Price: £7,888, reduced by £607 from £8,495 since AskCar first saw it on 26 July 2026, 106 days ago. Good value: £1,229 (13%) under the AskCar estimate of £9,117. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 22 February 2027. Dealer: Veloce Auto in Hillingdon, 11 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-49f5da37d4b3
- 2016 BMW 4 Series 2.0 M Sport, automatic, coupe, 5 doors, grey. Mileage: 114,000 miles. Price: £7,795, unchanged since AskCar first saw it on 2 November 2026, 7 days ago. Good value: £1,133 (12%) under the AskCar estimate of £8,928. Euro 6 emissions standard. MOT: valid until 23 July 2027. Dealer: Your Dream Car in Marlow, 18 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2016-6764138adc83
- 2017 BMW 4 Series 3.0 435d M Sport, 309 bhp, automatic, diesel, convertible, 2 doors, 4 seats, blue. Mileage: 77,962 miles. Price: £13,450, reduced by £900 from £14,350 since AskCar first saw it on 23 October 2026, 17 days ago. Good value: £1,917 (12%) under the AskCar estimate of £15,367. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 10 September 2027. Dealer: Car Planet Watford in Watford, 1 mile from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-307eca8eb74e
- 2017 BMW 4 Series 2.0 420d M Sport, 187 bhp, automatic, diesel, coupe, 2 doors, 4 seats, black. Mileage: 70,097 miles. Price: £11,450, reduced by £1,000 from £12,450 since AskCar first saw it on 5 August 2026, 96 days ago. Good value: £1,606 (12%) under the AskCar estimate of £13,056. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 4 August 2027. Dealer: Car Planet Barnet in Barnet, 11 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-25106fbf1e3b
- 2015 BMW 4 Series 3.0 435i M Sport, 302 bhp, automatic, petrol, coupe, 2 doors, 4 seats, grey. Mileage: 92,000 miles. Price: £10,890, reduced by £600 from £11,490 since AskCar first saw it on 22 September 2026, 48 days ago. Good value: £1,485 (12%) under the AskCar estimate of £12,375. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 11 August 2027. Dealer: Mondial Cars in Northwood, 4 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2015-322bca6342cb
- 2018 BMW 4 Series 2.0 420d M Sport, 187 bhp, automatic, diesel, coupe, 2 doors, 4 seats, blue. Mileage: 65,107 miles. Price: £12,550, reduced by £1,600 from £14,150 since AskCar first saw it on 8 September 2026, 62 days ago. Good value: £1,675 (11%) under the AskCar estimate of £14,225. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 3 April 2027. Dealer: Car Planet Watford in Watford, 1 mile from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-30800b809e81
- 2022 BMW 4 Series 2.0 430i M Sport, 241 bhp, automatic, petrol, convertible, 2 doors, 4 seats, white. Mileage: 22,000 miles. Price: £23,995, reduced by £6,000 from £29,995 since AskCar first saw it on 28 May 2026, 165 days ago. Good value: £3,089 (11%) under the AskCar estimate of £27,084. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 31 May 2027. Dealer: KARS.CO.UK Ltd - Chesham Trade Centre in Chesham, 10 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2022-80c3c3e6efb6
- 2014 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, black. Mileage: 83,900 miles. Price: £7,999, unchanged since AskCar first saw it on 28 October 2026, 12 days ago. Good value: £921 (10%) under the AskCar estimate of £8,920. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 13 August 2027. Dealer: Vantastic UK in Chertsey, 18 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2014-01aa5eec2798
- 2017 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, blue. Mileage: 35,850 miles. Price: £15,515, reduced by £300 from £15,815 since AskCar first saw it on 28 May 2026, 165 days ago. Good value: £1,775 (10%) under the AskCar estimate of £17,290. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 25 January 2027. Dealer: Mayfair Motor Solutions in London, 14 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-e4e329b197ad
- 2021 BMW 4 Series 2.0 420d MHT M Sport, 187 bhp, automatic, diesel, convertible, 2 doors, 4 seats, blue. Mileage: 38,735 miles. Price: £22,300, reduced by £2,100 from £24,400 since AskCar first saw it on 11 September 2026, 59 days ago. Good value: £2,529 (10%) under the AskCar estimate of £24,829. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 11 February 2027. Dealer: Car Planet Barnet in Barnet, 11 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-146d187a836c
- 2017 BMW 4 Series 3.0 430d M Sport, 254 bhp, automatic, diesel, convertible, 2 doors, 4 seats, grey. Mileage: 58,775 miles. Price: £14,050, unchanged since AskCar first saw it on 23 October 2026, 17 days ago. Good value: £1,581 (10%) under the AskCar estimate of £15,631. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 29 January 2027. Dealer: Car Planet Barnet in Barnet, 11 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-ab9b625ab1de
- 2018 BMW 4 Series 2.0 420i M Sport, 181 bhp, manual, petrol, convertible, 2 doors, 4 seats, white. Mileage: 28,885 miles. Price: £14,600, reduced by £900 from £15,500 since AskCar first saw it on 6 October 2026, 34 days ago. Good value: £1,592 (9%) under the AskCar estimate of £16,192. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 18 March 2027. Dealer: Car Planet Barnet in Barnet, 11 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-cddc4c2de5dd
- 2022 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, black. Mileage: 9,120 miles. Price: £26,621, reduced by £879 from £27,500 since AskCar first saw it on 3 October 2026, 37 days ago. Good value: £2,821 (9%) under the AskCar estimate of £29,442. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 1 October 2027. Dealer: Berry Chiswick BMW in Ealing, 12 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2022-7c00c75117f5
- 2015 BMW 4 Series 3.0 435d M Sport, 309 bhp, automatic, diesel, convertible, 2 doors, 4 seats, black. Mileage: 82,000 miles. Price: £10,999, reduced by £500 from £11,499 since AskCar first saw it on 26 July 2026, 106 days ago. Good value: £1,131 (9%) under the AskCar estimate of £12,130. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 17 March 2027. Dealer: Cars Of London in London, 7 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2015-c3b3b0098580
- 2021 BMW 4 Series 3.0 M440d MHT, 335 bhp, automatic, diesel, coupe, 2 doors, 4 seats, blue. Mileage: 39,000 miles. Price: £27,990, reduced by £2,000 from £29,990 since AskCar first saw it on 12 September 2026, 58 days ago. Good value: £2,873 (9%) under the AskCar estimate of £30,863. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 7 June 2027. Dealer: Pinewood Motors in Abbots Langley, 5 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-99fbfdc2e56f
- 2018 BMW 4 Series 2.0 420d Sport, 187 bhp, automatic, diesel, coupe, 2 doors, 4 seats, grey. Mileage: 121,000 miles. Price: £7,800, reduced by £1,000 from £8,800 since AskCar first saw it on 28 September 2026, 42 days ago. Good value: £768 (8%) under the AskCar estimate of £8,568. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 14 January 2027. Dealer: CNH Cars in Welwyn, 15 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-d99079a34678
- 2015 BMW 4 Series 3.0 435d M Sport, 309 bhp, automatic, diesel, coupe, 2 doors, 4 seats, white. Mileage: 95,466 miles. Price: £9,995, unchanged since AskCar first saw it on 26 July 2026, 106 days ago. Good value: £985 (8%) under the AskCar estimate of £10,980. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 30 April 2026; ask the dealer for the current MOT. Dealer: MK Motors in London, 18 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2015-c5bcec6a0c3f
- 2019 BMW 4 Series 2.0, automatic, petrol, coupe, 2 doors, 4 seats, grey. Mileage: 88,001 miles. Price: £11,850, unchanged since AskCar first saw it on 29 October 2026, 11 days ago. Good value: £1,151 (8%) under the AskCar estimate of £13,001. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 10 August 2027. Dealer: Carnexions Motor Company in Maidenhead, 20 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2019-2ec679f52bdd
- 2021 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, blue. Mileage: 29,199 miles. Price: £23,099, reduced by £2,250 from £25,349 since AskCar first saw it on 28 May 2026, 165 days ago. Good value: £2,242 (8%) under the AskCar estimate of £25,341. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 3 March 2027. Dealer: Motorpoint Chingford in Chingford, 16 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-c727067e39f2
- 2021 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, blue. Mileage: 40,178 miles. Price: £22,100, reduced by £1,200 from £23,300 since AskCar first saw it on 6 October 2026, 34 days ago. Good value: £2,127 (8%) under the AskCar estimate of £24,227. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 13 March 2027. Dealer: Car Planet Barnet in Barnet, 11 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-c04d0adf89d9
- 2025 BMW 4 Series 3.0 M440i MHT, 368 bhp, automatic, petrol, 2 doors, 4 seats, blue. Mileage: 10,000 miles. Price: £43,950, reduced by £2,550 from £46,500 since AskCar first saw it on 5 October 2026, 35 days ago. Good value: £4,203 (8%) under the AskCar estimate of £48,153. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sytner Luton BMW in Luton, 17 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2025-bc2c2a5432b7
- 2017 BMW 4 Series 3.0 440i M Sport, 322 bhp, automatic, petrol, 2 doors, 4 seats, blue. Mileage: 65,000 miles. Price: £17,995, unchanged since AskCar first saw it on 20 October 2026, 20 days ago. Good value: £1,663 (8%) under the AskCar estimate of £19,658. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 17 December 2026. Dealer: HS Platinum in Maidenhead, 15 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-e5f6fc59b3e2
- 2013 BMW 4 Series 2.0 420d Modern, 181 bhp, automatic, diesel, coupe, 2 doors, 4 seats, blue. Mileage: 99,000 miles. Price: £6,495, reduced by £700 from £7,195 since AskCar first saw it on 28 May 2026, 165 days ago. Good value: £590 (8%) under the AskCar estimate of £7,085. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 5 April 2027. Dealer: Select Cars in Luton, 16 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2013-2855813468a3
- 2022 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, white. Mileage: 35,500 miles. Price: £23,790, reduced by £500 from £24,290 since AskCar first saw it on 27 September 2026, 43 days ago. Good value: £2,080 (8%) under the AskCar estimate of £25,870. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 12 August 2027. Dealer: Rovia Cars in Waltham Cross, 16 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2022-16a0bdfaa158
- 2022 BMW 4 Series 2.0 420d MHT M Sport, 187 bhp, automatic, diesel, coupe, 2 doors, 4 seats, white. Mileage: 45,450 miles. Price: £23,000, reduced by £1,100 from £24,100 since AskCar first saw it on 29 September 2026, 41 days ago. Fair price: £1,999 (7%) under the AskCar estimate of £24,999. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 2 September 2027. Dealer: Reverie Autos in Hatfield, 10 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2022-0dfa2eeea74d
- 2019 BMW 4 Series 2.0 420d M Sport, 187 bhp, automatic, diesel, coupe, 2 doors, 4 seats, grey. Mileage: 89,000 miles. Price: £11,949, unchanged since AskCar first saw it on 27 October 2026, 13 days ago. Fair price: £1,038 (7%) under the AskCar estimate of £12,987. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 22 January 2027. Dealer: Bushey Car Sales in Radlett, 4 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2019-e1c70e9478b7
- 2017 BMW 4 Series 3.0 440i M Sport, 322 bhp, automatic, petrol, convertible, 2 doors, 4 seats, grey. Mileage: 71,304 miles. Price: £17,499, unchanged since AskCar first saw it on 23 August 2026, 78 days ago. Fair price: £1,411 (7%) under the AskCar estimate of £18,910. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 14 August 2027. Dealer: Sapphire Motors in London, 6 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-b82f1b4abe74
- 2017 BMW 4 Series 2.0 M Sport, automatic, diesel, coupe, 2 doors, 4 seats, blue. Mileage: 82,000 miles. Price: £11,249, unchanged since AskCar first saw it on 5 October 2026, 35 days ago. Fair price: £905 (7%) under the AskCar estimate of £12,154. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 13 December 2026. Dealer: Bushey Car Sales in Radlett, 4 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-9a2e9031c451
- 2016 BMW 4 Series 2.0 420d M Sport, 187 bhp, automatic, diesel, coupe, 2 doors, 4 seats, grey. Mileage: 69,900 miles. Price: £11,795, reduced by £695 from £12,490 since AskCar first saw it on 1 October 2026, 39 days ago. Fair price: £948 (7%) under the AskCar estimate of £12,743. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 28 July 2027. Dealer: WiseCars in Hillingdon, 10 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2016-d2f7a4166694
- 2019 BMW 4 Series 2.0 420i M Sport, 181 bhp, manual, petrol, coupe, 2 doors, 4 seats, black. Mileage: 31,236 miles. Price: £14,750, reduced by £300 from £15,050 since AskCar first saw it on 14 October 2026, 26 days ago. Fair price: £1,165 (7%) under the AskCar estimate of £15,915. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 5 November 2026; ask the dealer for the current MOT. Dealer: Car Planet Watford in Watford, 1 mile from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2019-dbc80dcaee12
- 2015 BMW 4 Series 2.0 420i Luxury, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, blue. Mileage: 87,097 miles. Price: £8,000, reduced by £500 from £8,500 since AskCar first saw it on 5 October 2026, 35 days ago. Fair price: £622 (7%) under the AskCar estimate of £8,622. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 17 December 2026. Dealer: Superior Motors in Staines, 16 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2015-5132fbaf37cf
- 2015 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, black. Mileage: 75,250 miles. Price: £10,250, reduced by £250 from £10,500 since AskCar first saw it on 6 November 2026, 3 days ago. Fair price: £795 (7%) under the AskCar estimate of £11,045. Euro 6 emissions standard. ULEZ compliant. Dealer: Planet Cars UK in Slough, 14 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2015-daf145e3e9b2
- 2019 BMW 4 Series 3.0 440i M Sport, 322 bhp, automatic, petrol, convertible, 2 doors, 4 seats, grey. Mileage: 59,057 miles. Price: £20,200, unchanged since AskCar first saw it on 30 October 2026, 10 days ago. Fair price: £1,510 (6%) under the AskCar estimate of £21,710. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 23 August 2027. Dealer: Car Planet Barnet in Barnet, 11 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2019-a58a7bc7db36
- 2016 BMW 4 Series 3.0 435d M Sport, 309 bhp, automatic, diesel, coupe, 2 doors, 4 seats, grey. Mileage: 55,533 miles. Price: £14,950, reduced by £1,500 from £16,450 since AskCar first saw it on 15 September 2026, 55 days ago. Fair price: £1,113 (6%) under the AskCar estimate of £16,063. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 7 April 2027. Dealer: Car Planet Barnet in Barnet, 11 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2016-5ea2a0195b6d
- 2021 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, blue. Mileage: 21,725 miles. Price: £24,811, reduced by £1,089 from £25,900 since AskCar first saw it on 30 August 2026, 71 days ago. Fair price: £1,823 (6%) under the AskCar estimate of £26,634. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 18 November 2026. Dealer: Berry Chiswick BMW in Ealing, 12 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-69856dfdc389
- 2024 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, 2 doors, 4 seats, blue. Mileage: 5,112 miles. Price: £32,500, unchanged since AskCar first saw it on 4 November 2026, 5 days ago. Fair price: £2,292 (6%) under the AskCar estimate of £34,792. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sytner Tring BMW in Tring, 13 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2024-e738b2f2313b
- 2015 BMW 4 Series 3.0 435d M Sport, 309 bhp, automatic, diesel, 2 doors, 4 seats, white. Mileage: 106,000 miles. Price: £9,450, reduced by £1,000 from £10,450 since AskCar first saw it on 27 August 2026, 74 days ago. Fair price: £666 (6%) under the AskCar estimate of £10,116. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 26 January 2027. Dealer: Car City (Luton) in Luton, 17 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2015-9d8448d4858e
- 2022 BMW 4 Series 3.0 M440d MHT, 335 bhp, automatic, diesel, convertible, 2 doors, 4 seats, blue. Mileage: 18,351 miles. Price: £32,950, reduced by £4,700 from £37,650 since AskCar first saw it on 25 June 2026, 137 days ago. Fair price: £2,313 (6%) under the AskCar estimate of £35,263. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 9 December 2026. Dealer: Car Planet Barnet in Barnet, 11 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2022-d7a023464441
- 2022 BMW 4 Series 3.0 M440i MHT, 369 bhp, automatic, petrol, coupe, 2 doors, 4 seats, blue. Mileage: 35,444 miles. Price: £32,989, reduced by £1,000 from £33,989 since AskCar first saw it on 17 September 2026, 53 days ago. Fair price: £2,248 (6%) under the AskCar estimate of £35,237. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 30 July 2027. Dealer: Stirling Cars in Hoddesdon, 19 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2022-b2a6b767df4a
- 2016 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, grey. Mileage: 69,000 miles. Price: £11,990, unchanged since AskCar first saw it on 29 August 2026, 72 days ago. Fair price: £810 (6%) under the AskCar estimate of £12,800. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 13 August 2027. Dealer: R8 Motors in Greenford, 9 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2016-bb07e1246b11
- 2017 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, grey. Mileage: 92,400 miles. Price: £10,195, reduced by £500 from £10,695 since AskCar first saw it on 13 September 2026, 57 days ago. Fair price: £666 (6%) under the AskCar estimate of £10,861. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 5 December 2026. Dealer: FY Autos in Maidenhead, 15 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-9257d1e70b0f
- 2016 BMW 4 Series 2.0 428i M Sport, 242 bhp, automatic, petrol, coupe, 2 doors, 4 seats, grey. Mileage: 32,000 miles. Price: £15,499, unchanged since AskCar first saw it on 26 July 2026, 106 days ago. Fair price: £1,004 (6%) under the AskCar estimate of £16,503. Euro 6 emissions standard. ULEZ compliant. Dealer: Cars Of London in London, 7 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2016-85d7d59fe285
- 2018 BMW 4 Series 3.0 435d M Sport, 309 bhp, automatic, diesel, convertible, 2 doors, 4 seats, grey. Mileage: 36,109 miles. Price: £20,100, unchanged since AskCar first saw it on 23 October 2026, 17 days ago. Fair price: £1,293 (6%) under the AskCar estimate of £21,393. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 25 February 2027. Dealer: Car Planet Watford in Watford, 1 mile from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-1a858a76ba39
- 2015 BMW 4 Series 3.0 435d M Sport, 309 bhp, automatic, diesel, coupe, 2 doors, 4 seats, white. Mileage: 87,000 miles. Price: £10,988, reduced by £1,000 from £11,988 since AskCar first saw it on 4 October 2026, 36 days ago. Fair price: £699 (5%) under the AskCar estimate of £11,687. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 28 October 2026; ask the dealer for the current MOT. Dealer: Auto Group in Wembley, 9 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2015-4fb913ace32f
- 2025 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, 2 doors, 4 seats, blue. Mileage: 5,423 miles. Price: £36,500, reduced by £2,000 from £38,500 since AskCar first saw it on 10 September 2026, 60 days ago. Fair price: £2,299 (5%) under the AskCar estimate of £38,799. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sytner Luton BMW in Luton, 17 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2025-80ebbcc697ed
- 2014 BMW 4 Series 2.0 420i Luxury, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, grey. Mileage: 81,000 miles. Price: £7,990, unchanged since AskCar first saw it on 28 October 2026, 12 days ago. Fair price: £493 (5%) under the AskCar estimate of £8,483. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 7 March 2027. Dealer: Westdrayton Motors in Windsor, 15 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2014-ac514839bb47
- 2017 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, white. Mileage: 99,900 miles. Price: £9,690, reduced by £300 from £9,990 since AskCar first saw it on 4 September 2026, 66 days ago. Fair price: £587 (5%) under the AskCar estimate of £10,277. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 3 March 2026; ask the dealer for the current MOT. Dealer: Automatic Motors in Hillingdon, 11 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-5368b6dd2e08
- 2017 BMW 4 Series 2.0 420i, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, blue. Mileage: 75,870 miles. Price: £12,450, reduced by £500 from £12,950 since AskCar first saw it on 18 September 2026, 52 days ago. Fair price: £739 (5%) under the AskCar estimate of £13,189. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 26 April 2027. Dealer: Pro Cars U K Ltd London in Watford, 0 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-db71f3c3182d
- 2022 BMW 4 Series 3.0 430d MHT M Sport, 282 bhp, automatic, diesel, coupe, 2 doors, 4 seats, white. Mileage: 75,008 miles. Price: £22,495, reduced by £1,800 from £24,295 since AskCar first saw it on 28 May 2026, 165 days ago. Fair price: £1,277 (5%) under the AskCar estimate of £23,772. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 17 June 2026; ask the dealer for the current MOT. Dealer: Tenby Car Supermarket in Luton, 19 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2022-641dc744b380
- 2019 BMW 4 Series 2.0 420d, 187 bhp, automatic, diesel, coupe, 2 doors, 4 seats, grey. Mileage: 55,600 miles. Price: £15,550, unchanged since AskCar first saw it on 5 November 2026, 4 days ago. Fair price: £853 (5%) under the AskCar estimate of £16,403. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 15 October 2027. Dealer: Love Car Deals in Radlett, 4 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2019-b7b97bae390a
- 2022 BMW 4 Series 2.0 420i M Sport PRO Edition, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, grey. Mileage: 60,000 miles. Price: £22,909, reduced by £2,900 from £25,809 since AskCar first saw it on 17 June 2026, 145 days ago. Fair price: £1,244 (5%) under the AskCar estimate of £24,153. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 27 April 2027. Dealer: FM Motor Co in Wembley, 8 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2022-197d289c8125
- 2022 BMW 4 Series 2.0 420d MHT M Sport, 187 bhp, automatic, diesel, coupe, 2 doors, 4 seats, white. Mileage: 51,000 miles. Price: £22,995, reduced by £1,000 from £23,995 since AskCar first saw it on 1 July 2026, 131 days ago. Fair price: £1,234 (5%) under the AskCar estimate of £24,229. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 24 April 2027. Dealer: Winchmore Car Sales in Cuffley, 13 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2022-826c15c31f9b
- 2025 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, 2 doors, 4 seats, white. Mileage: 6,694 miles. Price: £36,500, reduced by £1,000 from £37,500 since AskCar first saw it on 3 October 2026, 37 days ago. Fair price: £1,852 (4%) under the AskCar estimate of £38,352. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sytner Stevenage BMW in Stevenage, 18 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2025-c366b770aae1
- 2022 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, white. Mileage: 33,000 miles. Price: £24,980, unchanged since AskCar first saw it on 22 October 2026, 18 days ago. Fair price: £1,257 (4%) under the AskCar estimate of £26,237. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 12 August 2027. Dealer: Wembley Prestige Cars in Watford, 0 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2022-491a8dbdf885
- 2026 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, blue. Mileage: 4,569 miles. Price: £39,811, reduced by £5,189 from £45,000 since AskCar first saw it on 26 August 2026, 75 days ago. Fair price: £1,984 (4%) under the AskCar estimate of £41,795. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Berry Chiswick BMW in Ealing, 12 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2026-41a4f5139795
- 2022 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, white. Mileage: 40,500 miles. Price: £24,000, unchanged since AskCar first saw it on 20 October 2026, 20 days ago. Fair price: £1,152 (4%) under the AskCar estimate of £25,152. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 2 March 2027. Dealer: Reverie Autos in Hatfield, 10 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2022-831c7874497c
- 2018 BMW 4 Series 2.0 420d M Sport, 187 bhp, automatic, diesel, coupe, 2 doors, 4 seats, grey. Mileage: 93,787 miles. Price: £10,990, reduced by £500 from £11,490 since AskCar first saw it on 21 August 2026, 80 days ago. Fair price: £521 (4%) under the AskCar estimate of £11,511. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 24 April 2027. Dealer: Xenon Automotive in Welwyn Garden City, 14 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-3c5ab9360112
- 2022 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, blue. Mileage: 47,850 miles. Price: £23,195, reduced by £1,700 from £24,895 since AskCar first saw it on 17 June 2026, 145 days ago. Fair price: £1,078 (4%) under the AskCar estimate of £24,273. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 25 August 2026; ask the dealer for the current MOT. Dealer: Mayfair Motor Solutions in London, 14 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2022-c58665b867ad
- 2016 BMW 4 Series 3.0 435d M Sport, 309 bhp, automatic, diesel, coupe, 2 doors, 4 seats, silver. Mileage: 116,000 miles. Price: £9,990, unchanged since AskCar first saw it on 25 September 2026, 45 days ago. Fair price: £462 (4%) under the AskCar estimate of £10,452. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 1 August 2027. Dealer: Whytehall Car Collection in Maidenhead, 18 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2016-be0e79ec0e89
- 2015 BMW 4 Series 2.0 420d M Sport, 187 bhp, automatic, diesel, coupe, 2 doors, 4 seats, silver. Mileage: 99,852 miles. Price: £8,950, unchanged since AskCar first saw it on 30 October 2026, 10 days ago. Fair price: £403 (4%) under the AskCar estimate of £9,353. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 18 November 2026. Dealer: Car Planet Watford in Watford, 1 mile from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2015-25fe4eb31d7e
- 2017 BMW 4 Series 3.0 440i M Sport, 322 bhp, automatic, petrol, coupe, 2 doors, 4 seats, black. Mileage: 99,000 miles. Price: £14,750, unchanged since AskCar first saw it on 8 October 2026, 32 days ago. Fair price: £660 (4%) under the AskCar estimate of £15,410. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 16 March 2027. Dealer: Xclusive Xports in Bayford, 14 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-a6e671dec3bf
- 2026 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, blue. Mileage: 5,000 miles. Price: £39,975, reduced by £2,515 from £42,490 since AskCar first saw it on 10 August 2026, 91 days ago. Fair price: £1,737 (4%) under the AskCar estimate of £41,712. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Group 1 Borehamwood BMW in Borehamwood, 6 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2026-dbe2cc10c9c6
- 2017 BMW 4 Series 2.0 420d M Sport, 187 bhp, automatic, diesel, convertible, 2 doors, 4 seats, silver. Mileage: 90,735 miles. Price: £10,750, reduced by £900 from £11,650 since AskCar first saw it on 24 September 2026, 46 days ago. Fair price: £465 (4%) under the AskCar estimate of £11,215. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 29 July 2027. Dealer: Car Planet Barnet in Barnet, 11 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-e2b2688d05d5
- 2018 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, black. Mileage: 72,600 miles. Price: £12,488, reduced by £912 from £13,400 since AskCar first saw it on 28 August 2026, 73 days ago. Fair price: £499 (3%) under the AskCar estimate of £12,987. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 6 November 2026; ask the dealer for the current MOT. Dealer: Car Capital in Southall, 10 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-cd7c272be5c3
- 2019 BMW 4 Series 2.0 430i M Sport, 249 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 61,100 miles. Price: £16,300, unchanged since AskCar first saw it on 25 October 2026, 15 days ago. Fair price: £633 (3%) under the AskCar estimate of £16,933. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 11 August 2027. Dealer: Reverie Autos in Hatfield, 10 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2019-1a9616d23b23
- 2018 BMW 4 Series 3.0 M Sport, automatic, diesel, coupe, 2 doors, 4 seats, black. Mileage: 71,850 miles. Price: £16,180, reduced by £620 from £16,800 since AskCar first saw it on 28 May 2026, 165 days ago. Fair price: £624 (3%) under the AskCar estimate of £16,804. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 12 February 2027. Dealer: Mayfair Motor Solutions in London, 14 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-40381399d84d
- 2017 BMW 4 Series 3.0 435d M Sport, 309 bhp, automatic, diesel, coupe, 2 doors, 4 seats, black. Mileage: 72,171 miles. Price: £15,449, reduced by £500 from £15,949 since AskCar first saw it on 27 August 2026, 74 days ago. Fair price: £585 (3%) under the AskCar estimate of £16,034. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 26 May 2027. Dealer: The Car Guys in Dunstable, 17 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-9a91a13b0dbb
- 2021 BMW 4 Series 2.0 420d MHT M Sport, 187 bhp, automatic, diesel, coupe, 2 doors, 4 seats, blue. Mileage: 73,131 miles. Price: £19,350, reduced by £1,550 from £20,900 since AskCar first saw it on 24 September 2026, 46 days ago. Fair price: £676 (3%) under the AskCar estimate of £20,026. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 4 August 2027. Dealer: Car Planet Watford in Watford, 1 mile from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-8e45bfc0e270
- 2021 BMW 4 Series 2.0 420d MHT M Sport, 187 bhp, automatic, diesel, coupe, 2 doors, 4 seats, black. Mileage: 34,848 miles. Price: £23,995, unchanged since AskCar first saw it on 21 October 2026, 19 days ago. Fair price: £822 (3%) under the AskCar estimate of £24,818. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 12 October 2027. Dealer: A1 Auto Solutions in Maidenhead, 16 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-5e810c1fe515
- 2018 BMW 4 Series 2.0 420d M Sport, 187 bhp, automatic, diesel, coupe, 2 doors, 4 seats, blue. Mileage: 63,000 miles. Price: £14,950, reduced by £1,000 from £15,950 since AskCar first saw it on 12 July 2026, 120 days ago. Fair price: £483 (3%) under the AskCar estimate of £15,433. Euro 6 emissions standard. ULEZ compliant. Dealer: Intense Motors in High Wycombe, 15 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-732e34c9c91e
- 2017 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, grey. Mileage: 52,000 miles. Price: £13,995, unchanged since AskCar first saw it on 2 August 2026, 99 days ago. Fair price: £436 (3%) under the AskCar estimate of £14,431. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 28 August 2026; ask the dealer for the current MOT. Dealer: BM Vehicles in Ware, 19 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-127c65f644e3
- 2015 BMW 4 Series 3.0 430d M Sport, 254 bhp, automatic, diesel, coupe, 2 doors, 4 seats, black. Mileage: 54,000 miles. Price: £13,948, unchanged since AskCar first saw it on 1 October 2026, 39 days ago. Fair price: £428 (2%) under the AskCar estimate of £14,376. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 30 September 2027. Dealer: Auto Group in Wembley, 9 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2015-2ee5ce399341
- 2017 BMW 4 Series 2.0 M Sport, automatic, diesel, coupe, 2 doors, 4 seats, blue. Mileage: 84,000 miles. Price: £11,449, reduced by £500 from £11,949 since AskCar first saw it on 4 October 2026, 36 days ago. Fair price: £339 (2%) under the AskCar estimate of £11,788. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 27 September 2027. Dealer: Bushey Car Sales in Radlett, 4 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-c6eca0b9e1a8
- 2017 BMW 4 Series, automatic, diesel, 2 doors, 4 seats, grey. Mileage: 70,000 miles. Price: £14,219, unchanged since AskCar first saw it on 27 July 2026, 105 days ago. Fair price: £419 (2%) under the AskCar estimate of £14,638. Euro 6 emissions standard. ULEZ compliant. Dealer: Taylors Motor Company in Luton, 16 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-a4117a08c8a9
- 2020 BMW 4 Series 3.0 435d M Sport, 309 bhp, automatic, diesel, convertible, 2 doors, 4 seats, white. Mileage: 58,975 miles. Price: £19,989, reduced by £3,000 from £22,989 since AskCar first saw it on 22 July 2026, 110 days ago. Fair price: £576 (2%) under the AskCar estimate of £20,565. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 16 April 2027. Dealer: The Hertford Car Company in Hertford, 14 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2020-4ead0610929e
- 2018 BMW 4 Series 3.0 430d M Sport, 254 bhp, automatic, diesel, convertible, 2 doors, 4 seats, grey. Mileage: 31,000 miles. Price: £18,999, unchanged since AskCar first saw it on 26 July 2026, 106 days ago. Fair price: £536 (2%) under the AskCar estimate of £19,535. Euro 6 emissions standard. ULEZ compliant. Dealer: Cars Of London in London, 7 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-71b3e18742c5
- 2017 BMW 4 Series 2.0 420d M Sport, 187 bhp, automatic, diesel, coupe, 2 doors, 4 seats, black. Mileage: 30,297 miles. Price: £16,590, raised by £100 from £16,490 since AskCar first saw it on 12 June 2026, 150 days ago. Fair price: £462 (2%) under the AskCar estimate of £17,052. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 16 March 2027. Dealer: Allen & Forey Cars in Chalfont St Giles, 7 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2017-936e167c2c41
- 2024 BMW 4 Series 3.0 M440i MHT, 369 bhp, automatic, petrol, coupe, 2 doors, 4 seats, black. Mileage: 14,950 miles. Price: £42,990, unchanged since AskCar first saw it on 27 October 2026, 13 days ago. Fair price: £1,189 (2%) under the AskCar estimate of £44,179. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Dick Lovett in Potters Bar, 10 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2024-73dbb8d0ad1f
- 2014 BMW 4 Series 3.0 435i M Sport, 302 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 64,000 miles. Price: £13,995, unchanged since AskCar first saw it on 15 October 2026, 25 days ago. Fair price: £381 (2%) under the AskCar estimate of £14,376. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 29 January 2027. Dealer: Blue Autos Pro in Brent, 9 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2014-a78adbb5b351
- 2015 BMW 4 Series 2.0 420d M Sport, 181 bhp, automatic, diesel, convertible, 2 doors, 4 seats, white. Mileage: 65,768 miles. Price: £11,990, reduced by £600 from £12,590 since AskCar first saw it on 28 May 2026, 165 days ago. Fair price: £321 (2%) under the AskCar estimate of £12,311. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 15 January 2027. Dealer: Dani Motors in Luton, 15 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2015-af048a93b2a1
- 2022 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, convertible, 2 doors, 4 seats, white. Mileage: 62,995 miles. Price: £21,500, reduced by £1,100 from £22,600 since AskCar first saw it on 11 September 2026, 59 days ago. Fair price: £549 (2%) under the AskCar estimate of £22,049. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 1 March 2027. Dealer: MB Brent Park in London, 9 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2022-9b017ed54959
- 2022 BMW 4 Series 2.0 420d MHT M Sport, 187 bhp, automatic, diesel, 2 doors, 4 seats, white. Mileage: 41,009 miles. Price: £24,750, reduced by £250 from £25,000 since AskCar first saw it on 24 September 2026, 46 days ago. Fair price: £630 (2%) under the AskCar estimate of £25,380. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 18 September 2026; ask the dealer for the current MOT. Dealer: Sytner Luton BMW in Luton, 17 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2022-9582e30f18b1
- 2016 BMW 4 Series 3.0 435d M Sport, 309 bhp, automatic, diesel, coupe, 2 doors, 4 seats, black. Mileage: 67,551 miles. Price: £14,489, reduced by £300 from £14,789 since AskCar first saw it on 6 November 2026, 3 days ago. Fair price: £326 (2%) under the AskCar estimate of £14,815. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 30 October 2027. Dealer: Herts And Essex Motor Company in Hoddesdon, 18 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2016-ae90654450b5
- 2019 BMW 4 Series 2.0 420i, 181 bhp, automatic, petrol, coupe, 2 doors, 4 seats, blue. Mileage: 80,000 miles. Price: £13,995, unchanged since AskCar first saw it on 27 June 2026, 135 days ago. Fair price: £314 (2%) under the AskCar estimate of £14,309. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 2 July 2027. Dealer: Evo Motor Group in Watford, 4 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2019-53640df6e131
- 2024 BMW 4 Series 3.0 M440i MHT, 369 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 5,592 miles. Price: £47,400, reduced by £5,590 from £52,990 since AskCar first saw it on 7 August 2026, 94 days ago. Fair price: £998 (2%) under the AskCar estimate of £48,398. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Berry Heathrow in Heathrow, 10 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2024-126be86373a9
- 2019 BMW 4 Series 2.0 430i M Sport, 249 bhp, automatic, petrol, coupe, 2 doors, 4 seats, black. Mileage: 99,999 miles. Price: £12,450, unchanged since AskCar first saw it on 4 November 2026, 5 days ago. Fair price: £254 (2%) under the AskCar estimate of £12,704. Euro 6 emissions standard. ULEZ compliant. Dealer: Car Planet Watford in Watford, 1 mile from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2019-d71ba50123c7
- 2023 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, 2 doors, 4 seats, white. Mileage: 30,808 miles. Price: £27,890, reduced by £610 from £28,500 since AskCar first saw it on 30 September 2026, 40 days ago. Fair price: £551 (1%) under the AskCar estimate of £28,441. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 30 March 2027. Dealer: Sytner Luton BMW in Luton, 17 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-fb00ca675b65
- 2021 BMW 4 Series 2.0 420i M Sport PRO Edition, 181 bhp, automatic, petrol, convertible, 2 doors, 4 seats, blue. Mileage: 23,667 miles. Price: £28,150, reduced by £1,200 from £29,350 since AskCar first saw it on 8 October 2026, 32 days ago. Fair price: £555 (1%) under the AskCar estimate of £28,705. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 11 June 2027. Dealer: Car Planet Watford in Watford, 1 mile from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-8884ca83827e
- 2015 BMW 4 Series 3.0 435d M Sport, 309 bhp, automatic, diesel, convertible, 2 doors, 4 seats, white. Mileage: 60,124 miles. Price: £13,995, reduced by £495 from £14,490 since AskCar first saw it on 25 August 2026, 76 days ago. Fair price: £260 (1%) under the AskCar estimate of £14,255. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 30 April 2027. Dealer: HR Cars in Chesham, 10 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2015-29052fca5525
- 2015 BMW 4 Series 3.0 430d M Sport, 254 bhp, automatic, diesel, convertible, 2 doors, 4 seats, black. Mileage: 82,000 miles. Price: £10,889, reduced by £85 from £10,974 since AskCar first saw it on 31 October 2026, 9 days ago. Fair price: £190 (1%) under the AskCar estimate of £11,079. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 16 October 2027. Dealer: Blackstone Motors in Brent, 11 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2015-2f0fe5247132
- 2023 BMW 4 Series 2.0 420i M Sport, 181 bhp, automatic, petrol, convertible, 2 doors, 4 seats, black. Mileage: 18,857 miles. Price: £30,500, reduced by £1,995 from £32,495 since AskCar first saw it on 12 September 2026, 58 days ago. Fair price: £464 (1%) under the AskCar estimate of £30,964. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 27 April 2027. Dealer: Hedin Automotive Enfield BMW in Enfield, 14 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2023-f0574a56d3ea
- 2018 BMW 4 Series 2.0 430i M Sport, 249 bhp, automatic, petrol, convertible, 2 doors, 4 seats, white. Mileage: 43,927 miles. Price: £17,495, unchanged since AskCar first saw it on 5 November 2026, 4 days ago. Fair price: £238 (1%) under the AskCar estimate of £17,733. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 25 February 2027. Dealer: Allwood Automobiles in Waltham Cross, 16 miles from Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-7a85324e5036
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- Under £8,000 (87 cars)
- Under £10,000 (237 cars)
- Under £15,000 (695 cars)
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- Under £30,000 (1,459 cars)
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