Used BMW X3 for sale near Llanelli
There are 18 used BMW X3 for sale from UK dealers within 20 miles of Llanelli on AskCar, as of 4 November 2026. Typical asking price £34,500 (the median: half cost less, half cost more). The cheapest is £14,500. AskCar lists 3,115 used BMW X3 across the UK, from 1,212 dealerships.
The middle half of the 18 cars are priced between £26,500 and £49,000.
As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.
Price reductions near Llanelli
7 of the 18 BMW X3 within 20 miles of Llanelli had their price reduced in the last 14 days to 4 November 2026. Each one's line in the list below says by how much.
Cars for sale now
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 3,034 priced BMW X3 adverts on AskCar as of 4 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.
- 2023 BMW X3 2.0 20d MHT M Sport, 187 bhp, automatic, diesel, SUV, 5 doors, white. Mileage: 7,178 miles. Price: £33,950, reduced by £3,000 from £36,950 since AskCar first saw it on 28 May 2026, 160 days ago. Good value: £4,451 (11%) under the AskCar estimate of £38,401. Euro 6 emissions standard. ULEZ compliant. Dealer: Sinclair Direct Swansea in Swansea, 6 miles from Llanelli. AskCar page: https://askcar.co.uk/car/bmw-x3-2023-dcffbd1af131
- 2022 BMW X3 2.0 30e Xline, 288 bhp, automatic, plug-in hybrid (petrol), SUV, 5 doors, white. Mileage: 27,710 miles. Price: £25,999, reduced by £4,500 from £30,499 since AskCar first saw it on 30 May 2026, 158 days ago. Fair price: £1,529 (5%) under the AskCar estimate of £27,528. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 14 January 2027. Dealer: Days Motorpark in Swansea, 10 miles from Llanelli. AskCar page: https://askcar.co.uk/car/bmw-x3-2022-6f51432ca117
- 2026 BMW X3 2.0 30e M Sport, 294 bhp, automatic, plug-in hybrid (petrol), SUV, 5 doors, black. Mileage: 5 miles. Price: £56,500, unchanged since AskCar first saw it on 2 September 2026, 63 days ago. Fair price: £2,906 (4%) under the AskCar estimate of £59,406. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sytner Swansea MINI in Swansea, 10 miles from Llanelli. AskCar page: https://askcar.co.uk/car/bmw-x3-2026-302fea2afa08
- 2026 BMW X3 2.0 20d MHT M Sport, 194 bhp, automatic, diesel, SUV, 5 doors, grey. Mileage: 5 miles. Price: £50,000, unchanged since AskCar first saw it on 30 September 2026, 35 days ago. Fair price: £2,470 (4%) under the AskCar estimate of £52,470. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sytner Swansea MINI in Swansea, 10 miles from Llanelli. AskCar page: https://askcar.co.uk/car/bmw-x3-2026-1ed470c1039c
- 2021 BMW X3 2.0 20d MHT M Sport, 187 bhp, automatic, diesel, SUV, 5 doors, black. Mileage: 63,570 miles. Price: £23,000, unchanged since AskCar first saw it on 1 October 2026, 34 days ago. Fair price: £307 (1%) under the AskCar estimate of £23,307. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 13 September 2027. Dealer: Sytner Swansea MINI in Swansea, 10 miles from Llanelli. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-70c34898ff55
- 2024 BMW X3 3.0 M40d MHT, 335 bhp, automatic, diesel, SUV, 5 doors, blue. Mileage: 12,133 miles. Price: £49,000, unchanged since AskCar first saw it on 28 October 2026, 7 days ago. Fair price: £624 (1%) under the AskCar estimate of £49,624. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sytner Swansea MINI in Swansea, 10 miles from Llanelli. AskCar page: https://askcar.co.uk/car/bmw-x3-2024-d259f2cb2baa
- 2019 BMW X3 3.0 M40i, 355 bhp, automatic, petrol, SUV, 5 doors, blue. Mileage: 35,112 miles. Price: £31,750, reduced by £1,250 from £33,000 since AskCar first saw it on 2 September 2026, 63 days ago. Fair price: £335 (1%) under the AskCar estimate of £32,085. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 9 August 2027. Dealer: Sytner Swansea MINI in Swansea, 10 miles from Llanelli. AskCar page: https://askcar.co.uk/car/bmw-x3-2019-b4dc04beac66
- 2023 BMW X3 2.0 20d MHT M Sport, 187 bhp, automatic, diesel, SUV, 5 doors, black. Mileage: 26,380 miles. Price: £34,750, reduced by £250 from £35,000 since AskCar first saw it on 1 October 2026, 34 days ago. Fair price: £202 (under 1%) under the AskCar estimate of £34,952. Euro 6 emissions standard. ULEZ compliant. Dealer: Sytner Swansea MINI in Swansea, 10 miles from Llanelli. AskCar page: https://askcar.co.uk/car/bmw-x3-2023-3adedf7ae97e
- 2026 BMW X3 2.0 20d MHT M Sport, 194 bhp, automatic, diesel, SUV, 5 doors, black. Mileage: 8,679 miles. Price: £46,500, reduced by £500 from £47,000 since AskCar first saw it on 18 September 2026, 47 days ago. Fair price: £243 (under 1%) under the AskCar estimate of £46,743. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sytner Swansea MINI in Swansea, 10 miles from Llanelli. AskCar page: https://askcar.co.uk/car/bmw-x3-2026-7c5b0f195b4e
- 2019 BMW X3 2.0 20d M Sport, 187 bhp, automatic, diesel, SUV, 5 doors, grey. Mileage: 67,932 miles. Price: £19,250, unchanged since AskCar first saw it on 23 October 2026, 12 days ago. Fair price: £40 (under 1%) under the AskCar estimate of £19,290. Euro 6 emissions standard. ULEZ compliant. Dealer: Sytner Swansea MINI in Swansea, 10 miles from Llanelli. AskCar page: https://askcar.co.uk/car/bmw-x3-2019-c1aadf17601d
- 2023 BMW X3 3.0 30d MHT M Sport, 282 bhp, automatic, diesel, SUV, 5 doors, grey. Mileage: 26,756 miles. Price: £39,500, reduced by £250 from £39,750 since AskCar first saw it on 1 October 2026, 34 days ago. Fair price: £32 (under 1%) over the AskCar estimate of £39,468. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 28 September 2027. Dealer: Sytner Swansea MINI in Swansea, 10 miles from Llanelli. AskCar page: https://askcar.co.uk/car/bmw-x3-2023-482d3503fdc5
- 2021 BMW X3 2.0 20i M Sport, 181 bhp, automatic, petrol, SUV, 5 doors, blue. Mileage: 56,500 miles. Price: £24,750, unchanged since AskCar first saw it on 30 October 2026, 5 days ago. Fair price: £139 (under 1%) over the AskCar estimate of £24,611. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 8 September 2027. Dealer: Sytner Swansea MINI in Swansea, 10 miles from Llanelli. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-cc4fb870939f
- 2022 BMW X3 2.0 20i MHT M Sport, 181 bhp, automatic, petrol, SUV, 5 doors, white. Mileage: 47,600 miles. Price: £28,990, unchanged since AskCar first saw it on 24 October 2026, 11 days ago. Fair price: £181 (under 1%) over the AskCar estimate of £28,809. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 19 March 2027. Dealer: jjmotors in Llanelli, 1 mile from Llanelli. AskCar page: https://askcar.co.uk/car/bmw-x3-2022-b547f49d15cf
- 2026 BMW X3 2.0 20d MHT M Sport, 194 bhp, automatic, diesel, SUV, 5 doors, black. Mileage: 150 miles. Price: £53,500, unchanged since AskCar first saw it on 1 October 2026, 34 days ago. Fair price: £1,259 (2%) over the AskCar estimate of £52,241. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sytner Swansea MINI in Swansea, 10 miles from Llanelli. AskCar page: https://askcar.co.uk/car/bmw-x3-2026-6769ae8d3944
- 2026 BMW X3 2.0 30e M Sport, 294 bhp, automatic, plug-in hybrid (petrol), SUV, 5 doors, grey. Mileage: 512 miles. Price: £55,000, reduced by £2,000 from £57,000 since AskCar first saw it on 5 September 2026, 60 days ago. Fair price: £1,329 (2%) over the AskCar estimate of £53,671. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sytner Swansea MINI in Swansea, 10 miles from Llanelli. AskCar page: https://askcar.co.uk/car/bmw-x3-2026-53a81c172757
- 2026 BMW X3 2.0 20d MHT M Sport, 194 bhp, automatic, diesel, SUV, 5 doors, blue. Mileage: 8,121 miles. Price: £49,000, reduced by £6,000 from £55,000 since AskCar first saw it on 28 May 2026, 160 days ago. Fair price: £2,028 (4%) over the AskCar estimate of £46,972. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sytner Swansea MINI in Swansea, 10 miles from Llanelli. AskCar page: https://askcar.co.uk/car/bmw-x3-2026-402863850d2c
- 2023 BMW X3 2.0 30e M Sport, 288 bhp, automatic, plug-in hybrid (petrol), SUV, 5 doors, grey. Mileage: 48,181 miles. Price: £34,500, reduced by £250 from £34,750 since AskCar first saw it on 25 September 2026, 40 days ago. Above the going rate: £4,143 (13%) over the AskCar estimate of £30,357. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 22 September 2027. Dealer: Sytner Swansea MINI in Swansea, 10 miles from Llanelli. AskCar page: https://askcar.co.uk/car/bmw-x3-2023-4f438fbed3ca
- 2016 BMW X3 2.0 20d SE, 187 bhp, automatic, diesel, estate, 5 doors, grey. Mileage: 59,895 miles. Price: £14,500, unchanged since AskCar first saw it on 18 October 2026, 17 days ago. Above the going rate: £2,115 (17%) over the AskCar estimate of £12,385. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 29 December 2026. Dealer: Sytner Swansea MINI in Swansea, 10 miles from Llanelli. AskCar page: https://askcar.co.uk/car/bmw-x3-2016-3d6395892ad7
BMW X3 across the UK by price
- Under £5,000 (50 cars)
- Under £8,000 (162 cars)
- Under £10,000 (252 cars)
- Under £15,000 (504 cars)
- Under £20,000 (894 cars)
- Under £30,000 (1,616 cars)
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