Used automatic Mercedes-Benz GLA for sale under £20,000
There are 1,223 used automatic Mercedes-Benz GLA under £20,000 for sale from UK dealers on AskCar, as of 31 October 2026. Typical asking price £12,600 (the median: half cost less, half cost more). The cheapest is £2,995. AskCar lists 2,592 used Mercedes-Benz GLA across the UK, from 1,321 dealerships.
The middle half of the 1,223 cars are priced between £10,500 and £15,000.
As of 31 October 2026, AskCar lists 583,548 cars and vans from 12,716 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.
358 of the 1,223 cars had their price reduced in the last 14 days to 31 October 2026.
Median asking price by year
| Year | For sale with a price | Median asking price | Middle half priced between |
|---|---|---|---|
| 2021 | 94 | £19,000 | £18,100 to £19,700 |
| 2020 | 117 | £16,600 | £14,800 to £18,500 |
| 2019 | 253 | £13,500 | £12,500 to £14,700 |
| 2018 | 205 | £12,500 | £11,100 to £13,800 |
| 2017 | 189 | £11,800 | £10,300 to £13,000 |
| 2016 | 144 | £10,300 | £9,000 to £12,100 |
| 2015 | 134 | £9,800 | £8,400 to £11,200 |
| 2014 | 57 | £9,300 | £8,500 to £10,200 |
Cars for sale now, page 13 of 13
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 2,556 priced Mercedes-Benz GLA adverts on AskCar as of 31 October 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 and town; AskCar page.
Cheaper cars like each one, with its price history, are on its AskCar page.
- 2019 Mercedes-Benz GLA 1.6 AMG Line Edition, automatic, petrol, SUV, 5 doors, red. Mileage: 10,000 miles. Price: £11,475, reduced by £2,200 from £13,675 since AskCar first saw it on 28 May 2026, 156 days ago. Far below the going rate: £5,857 (33%) under the AskCar estimate of £17,332. Worth asking the dealer why. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 9 July 2026; ask the dealer for the current MOT. Dealer: Sandwell Car Sales in West Bromwich. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2019-6832b5758121
- 2015 Mercedes-Benz GLA 2.1 GLA200 CDI AMG Line, 134 bhp, automatic, diesel, SUV, 5 doors, white. Mileage: 101,850 miles. Price: £4,795, reduced by £3,500 from £8,295 since AskCar first saw it on 28 May 2026, 156 days ago. Far below the going rate: £2,388 (33%) under the AskCar estimate of £7,183. Worth asking the dealer why. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 15 June 2027. Dealer: Tenby Car Supermarket in Luton. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2015-c94dd7a424e2
- 2018 Mercedes-Benz GLA 2.1 GLA220d AMG Line Premium Plus, 175 bhp, automatic, diesel, SUV, 5 doors, white. Mileage: 90,842 miles. Price: £11,125, unchanged since AskCar first saw it on 20 October 2026, 11 days ago. Fair price: £546 (4%) under the AskCar estimate of £11,671. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 31 July 2027. Dealer: Red Lion Motors in Chelmsford. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2018-44406d7a2f3e
- 2017 Mercedes-Benz GLA 2.1 AMG Line Premium Plus, automatic, diesel, SUV, 5 doors, blue. Mileage: 55,943 miles. Price: £12,823, unchanged since AskCar first saw it on 31 October 2026. Fair price: £497 (3%) under the AskCar estimate of £13,320. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 18 October 2027. Dealer: Carsa Portsmouth in Portsmouth. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2017-24ac23dab51c
- 2019 Mercedes-Benz GLA 1.6 AMG Line Edition, automatic, petrol, SUV, 5 doors, white. Mileage: 71,497 miles. Price: £12,357, raised by £1 from £12,356 since AskCar first saw it on 18 October 2026, 13 days ago. Fair price: £436 (3%) under the AskCar estimate of £12,793. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 2 February 2027. Dealer: Carsa Durham in Durham. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2019-c366b4100b8e
- 2017 Mercedes-Benz GLA 2.1 GLA200d Sport, 134 bhp, automatic, diesel, 5 doors, grey. Mileage: 78,000 miles. Price: £9,995, unchanged since AskCar first saw it on 15 October 2026, 16 days ago. Fair price: £273 (2%) under the AskCar estimate of £10,268. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 2 December 2026. Dealer: Langley Motors in Slough. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2017-ac3a613dc809
- 2021 Mercedes-Benz GLA 1.3 GLA250e Exclusive Edition, 215 bhp, automatic, plug-in hybrid (petrol), SUV, 5 doors, blue. Mileage: 40,625 miles. Price: £19,852, raised by £31 from £19,821 since AskCar first saw it on 25 October 2026, 6 days ago. Fair price: £360 (1%) under the AskCar estimate of £20,212. Euro 6 emissions standard. ULEZ compliant. Dealer: Carsa Mountsorrel in Mountsorrel. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2021-65687f794782
- 2018 Mercedes-Benz GLA 2.0 GLA250 AMG Line Premium Plus, 208 bhp, automatic, petrol, SUV, 5 doors, grey. Mileage: 61,000 miles. Price: £15,140, unchanged since AskCar first saw it on 31 October 2026. Fair price: £206 (1%) under the AskCar estimate of £15,346. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 28 September 2027. Dealer: Car Holics in Hillingdon. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2018-9c52465db906
- 2017 Mercedes-Benz GLA 2.1 GLA220d AMG Line Premium Plus, 175 bhp, automatic, diesel, SUV, 5 doors, silver. Mileage: 59,000 miles. Price: £13,495, unchanged since AskCar first saw it on 25 October 2026, 6 days ago. Fair price: £136 (1%) under the AskCar estimate of £13,631. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 18 August 2027. Dealer: Woods New Forest in Lymington. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2017-8b436d7cdab3
- 2017 Mercedes-Benz GLA 2.1 GLA200d Sport Executive, 134 bhp, automatic, diesel, SUV, 5 doors, white. Mileage: 59,311 miles. Price: £10,995, unchanged since AskCar first saw it on 21 October 2026, 10 days ago. Fair price: £57 (under 1%) under the AskCar estimate of £11,052. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 22 June 2027. Dealer: Severnside Car Company in Bridgend. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2017-c4804d3794e2
- 2019 Mercedes-Benz GLA 1.6 GLA200 AMG Line Edition, 154 bhp, automatic, petrol, SUV, 5 doors, red. Mileage: 21,500 miles. Price: £16,500, unchanged since AskCar first saw it on 29 October 2026, 2 days ago. Fair price: £54 (under 1%) over the AskCar estimate of £16,446. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 4 February 2027. Dealer: Cobham Automotive in Cobham. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2019-2c5a1284df32
- 2021 Mercedes-Benz GLA 2.0 GLA200d AMG Line Executive, 148 bhp, automatic, diesel, SUV, 5 doors, white. Mileage: 109,114 miles. Price: £13,295, unchanged since AskCar first saw it on 31 October 2026. Fair price: £74 (under 1%) over the AskCar estimate of £13,221. Euro 6 emissions standard. ULEZ compliant. Dealer: Hiline Motors in Birmingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2021-70bfc85bb3c6
- 2018 Mercedes-Benz GLA 1.6 GLA200 AMG Line Premium, 154 bhp, automatic, petrol, SUV, 5 doors, grey. Mileage: 67,000 miles. Price: £11,999, unchanged since AskCar first saw it on 29 October 2026, 2 days ago. Fair price: £168 (1%) over the AskCar estimate of £11,831. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 8 November 2027. Dealer: Scott Motor Company in Tamworth. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2018-3fc31c581776
- 2015 Mercedes-Benz GLA 2.1, 134 bhp, automatic, diesel, hatchback, 5 doors, black. Mileage: 134,869 miles. Price: £5,995, unchanged since AskCar first saw it on 3 October 2026, 28 days ago. Fair price: £231 (4%) over the AskCar estimate of £5,764. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 14 March 2027. Dealer: Sterling Cars in Reading. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2015-f5416ff45c3d
- 2019 Mercedes-Benz GLA 1.6 GLA180 Urban Edition, 120 bhp, automatic, petrol, SUV, 5 doors, grey. Mileage: 84,000 miles. Price: £11,409, unchanged since AskCar first saw it on 26 September 2026, 35 days ago. Fair price: £520 (4%) over the AskCar estimate of £10,889. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 30 January 2027. Dealer: Great Britain Motors in Epsom. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2019-63419ecc5816
- 2019 Mercedes-Benz GLA 1.6 GLA200 AMG Line Edition, 154 bhp, automatic, petrol, SUV, 5 doors, black. Mileage: 32,341 miles. Price: £16,595, raised by £600 from £15,995 since AskCar first saw it on 30 September 2026, 31 days ago. Fair price: £869 (5%) over the AskCar estimate of £15,726. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 18 February 2027. Dealer: Busseys BYD Norwich in Norwich. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2019-58e15047d131
- 2015 Mercedes-Benz GLA 2.1 GLA220 CDI AMG Line, 168 bhp, automatic, diesel, SUV, 5 doors, blue. Price: £7,995, unchanged since AskCar first saw it on 30 October 2026, 1 day ago. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 21 September 2027. Dealer: Find Me A Car in Plymouth. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2015-3f986982a585
- 2015 Mercedes-Benz GLA 2.1 Sport, automatic, diesel, SUV, 5 doors. Price: £7,995, reduced by £500 from £8,495 since AskCar first saw it on 13 October 2026, 18 days ago. Euro 6 emissions standard. ULEZ compliant. Dealer: Lg Tannorella Car Sales in Cardiff. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2015-d203ae8af589
- 2019 Mercedes-Benz GLA 2.1 Sport Premium Plus, automatic, diesel, 5 doors, silver. Price: £12,495, unchanged since AskCar first saw it on 11 August 2026, 81 days ago. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 6 April 2027. Dealer: Car Drift in Romford. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2019-e2f3460cb854
- 2019 Mercedes-Benz GLA 1.6 GLA200 Urban Edition, 154 bhp, automatic, petrol, SUV, 5 doors, black. Price: £12,995, unchanged since AskCar first saw it on 25 September 2026, 36 days ago. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 30 July 2027. Dealer: Find Me A Car in Plymouth. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-2019-1f168b5da4c2
- Mercedes-Benz GLA 1.6 AMG Line Edition, automatic, petrol, 5 doors. Mileage: 70,000 miles. Price: £13,250, unchanged since AskCar first saw it on 20 August 2026, 72 days ago. Euro 6 emissions standard. ULEZ compliant. Dealer: TLC Car Sales in St Albans. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-1f3ca3120381
- Mercedes-Benz GLA AMG Line Edition, automatic, 5 doors. Mileage: 40,000 miles. Price: £14,985, unchanged since AskCar first saw it on 20 August 2026, 72 days ago. Euro 6 emissions standard. Dealer: TLC Car Sales in St Albans. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-416e3c08c7cb
- Mercedes-Benz GLA 1.6 AMG Line Edition, automatic, petrol, 5 doors. Mileage: 27,000 miles. Price: £16,485, unchanged since AskCar first saw it on 20 August 2026, 72 days ago. Euro 6 emissions standard. ULEZ compliant. Dealer: TLC Car Sales in St Albans. AskCar page: https://askcar.co.uk/car/mercedes-benz-gla-7bf0a5a33385
Mercedes-Benz GLA by gearbox, fuel and body
- Automatic Mercedes-Benz GLA (2,314 cars)
- Manual Mercedes-Benz GLA (269 cars)
- Petrol Mercedes-Benz GLA (1,337 cars)
- Diesel Mercedes-Benz GLA (1,099 cars)
- Plug-in hybrid Mercedes-Benz GLA (119 cars)
- Mercedes-Benz GLA SUV (2,052 cars)
- Mercedes-Benz GLA hatchback (274 cars)
- Mercedes-Benz GLA estate (98 cars)
Automatic Mercedes-Benz GLA by price
Mercedes-Benz GLA prices by year
- 2026 (234 cars with a price)
- 2025 (197 cars with a price)
- 2024 (180 cars with a price)
- 2023 (217 cars with a price)
- 2022 (129 cars with a price)
- 2021 (209 cars with a price)
- 2020 (154 cars with a price)
- 2019 (331 cars with a price)
- 2018 (292 cars with a price)
- 2017 (253 cars with a price)
- 2016 (170 cars with a price)
- 2015 (154 cars with a price)
- 2014 (62 cars with a price)
Mercedes-Benz GLA by price
- Under £8,000 (118 cars)
- Under £10,000 (422 cars)
- Under £15,000 (1,215 cars)
- Under £20,000 (1,499 cars)
- Under £30,000 (2,278 cars)
Automatic cars and vans under £20,000
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