Used Mercedes-Benz GLS for sale
This 2025 Mercedes-Benz GLS is no longer listed. Here are similar cars for sale now.
There are 150 used Mercedes-Benz GLS for sale from UK dealers on AskCar, as of 8 November 2026. Typical asking price £50,000 (the median: half cost less, half cost more). The cheapest is £16,290. They come from 116 dealerships.
The middle half of the 150 cars are priced between £33,000 and £72,000.
As of 8 November 2026, AskCar lists 595,629 cars and vans from 12,891 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.
What does a used Mercedes-Benz GLS cost?
The median asking price is £50,000, across the 150 cars for sale with a price.
70 of the 150 cars had their price reduced in the last 14 days to 8 November 2026.
Cars for sale now, page 1 of 2
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 143 priced Mercedes-Benz GLS adverts on AskCar as of 8 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 and town; AskCar page.
Cheaper cars like each one, with its price history, are on its AskCar page.
- 2023 Mercedes-Benz GLS 2.9 GLS400d Night Edition Executive, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 43,297 miles. Price: £52,975, reduced by £5,000 from £57,975 since AskCar first saw it on 8 July 2026, 123 days ago. Good value: £8,355 (13%) under the AskCar estimate of £61,330. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 22 January 2027. Dealer: PCBS Sales in Tonbridge. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2023-117acc54a4ed
- 2018 Mercedes-Benz GLS 5.5 GLS63 V8 AMG, 577 bhp, automatic, petrol, SUV, 5 doors, 7 seats, white. Mileage: 49,364 miles. Price: £43,490, reduced by £500 from £43,990 since AskCar first saw it on 3 November 2026, 5 days ago. Good value: £6,758 (13%) under the AskCar estimate of £50,248. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 20 March 2027. Dealer: Car City UK Catterick in Catterick. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2018-bfb391d5e696
- 2017 Mercedes-Benz GLS 3.0 GLS350d V6, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 65,000 miles. Price: £25,000, unchanged since AskCar first saw it on 28 May 2026, 164 days ago. Good value: £3,106 (11%) under the AskCar estimate of £28,106. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 5 October 2026; ask the dealer for the current MOT. Dealer: Rockstar Motors in Colchester. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2017-8c95e3e90c52
- 2018 Mercedes-Benz GLS 3.0, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, blue. Mileage: 74,550 miles. Price: £26,995, reduced by £500 from £27,495 since AskCar first saw it on 15 October 2026, 24 days ago. Good value: £3,124 (10%) under the AskCar estimate of £30,119. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 5 October 2027. Dealer: Jack Henry Group in Maidstone. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2018-7eeebdeb301b
- 2019 Mercedes-Benz GLS 3.0 GLS350d V6 AMG Line, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, white. Mileage: 55,162 miles. Price: £29,995, unchanged since AskCar first saw it on 6 November 2026, 2 days ago. Good value: £3,125 (9%) under the AskCar estimate of £33,120. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 22 December 2026. Dealer: House Of Motors in Romford. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2019-8d398b004f4d
- 2020 Mercedes-Benz GLS 2.9 GLS400d AMG Line Premium, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 46,064 miles. Price: £42,499, unchanged since AskCar first saw it on 31 October 2026, 8 days ago. Good value: £4,414 (9%) under the AskCar estimate of £46,913. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 12 July 2027. Dealer: Hendy Kia / Mazda / Honda - Eastleigh in Eastleigh. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2020-0a260b2e05b8
- 2016 Mercedes-Benz GLS 3.0 AMG Line, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, white. Mileage: 82,642 miles. Price: £19,990, unchanged since AskCar first saw it on 22 July 2026, 109 days ago. Good value: £1,884 (8%) under the AskCar estimate of £21,874. Euro 6 emissions standard. ULEZ compliant. Dealer: Motor 4 U in Flimwell. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2016-d3cbd23de276
- 2022 Mercedes-Benz GLS 2.9 GLS400d Night Edition, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, blue. Mileage: 17,897 miles. Price: £55,650, reduced by £4,300 from £59,950 since AskCar first saw it on 16 September 2026, 53 days ago. Good value: £5,222 (8%) under the AskCar estimate of £60,872. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 19 October 2026; ask the dealer for the current MOT. Dealer: Group 1 Automotive Mercedes-Benz of Hertford in Hertford. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2022-855c016af91b
- 2016 Mercedes-Benz GLS 5.5 AMG, 576 bhp, automatic, petrol, SUV, 5 doors, 7 seats, black. Mileage: 72,000 miles. Price: £33,490, unchanged since AskCar first saw it on 28 August 2026, 72 days ago. Good value: £2,974 (8%) under the AskCar estimate of £36,464. Euro 6 emissions standard. ULEZ compliant. Dealer: SF Cars in Ealing. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2016-863f75942d59
- 2018 Mercedes-Benz GLS 3.0 AMG Line, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, white. Mileage: 47,220 miles. Price: £28,899, reduced by £2,400 from £31,299 since AskCar first saw it on 28 May 2026, 164 days ago. Good value: £2,516 (8%) under the AskCar estimate of £31,415. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 20 November 2026. Dealer: Fords of Winsford Manchester in Manchester. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2018-9285f4710095
- 2016 Mercedes-Benz GLS 5.5 GLS63 V8 AMG, 577 bhp, automatic, petrol, SUV, 5 doors, 7 seats, white. Mileage: 66,575 miles. Price: £34,700, reduced by £1,295 from £35,995 since AskCar first saw it on 13 June 2026, 148 days ago. Fair price: £2,854 (7%) under the AskCar estimate of £37,554. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 2 March 2027. Dealer: Prestige Autos Surrey in Thames Ditton. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2016-3f4ecf441078
- 2017 Mercedes-Benz GLS 3.0 GLS350d V6 AMG Line, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 65,000 miles. Price: £25,990, reduced by £2,000 from £27,990 since AskCar first saw it on 30 October 2026, 9 days ago. Fair price: £2,007 (7%) under the AskCar estimate of £27,997. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 19 February 2027. Dealer: Vogue Motor Company in Bolton. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2017-15387b8ca150
- 2023 Mercedes-Benz GLS 4.0 GLS63h V8 BiTurbo MHEV AMG Night Edition Executive, 623 bhp, automatic, petrol, SUV, 5 doors, 7 seats, black. Mileage: 27,474 miles. Price: £82,000, reduced by £10,000 from £92,000 since AskCar first saw it on 13 July 2026, 118 days ago. Fair price: £5,979 (6%) under the AskCar estimate of £87,979. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 7 April 2027. Dealer: Saxtons.co.uk in Chelmsford. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2023-e66906a682e0
- 2018 Mercedes-Benz GLS 3.0 GLS350d V6 AMG Line, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 59,000 miles. Price: £28,495, unchanged since AskCar first saw it on 28 May 2026, 164 days ago. Fair price: £2,068 (6%) under the AskCar estimate of £30,563. Euro 6 emissions standard. ULEZ compliant. Dealer: Apex Motor House in Farnham. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2018-474b7b607784
- 2022 Mercedes-Benz GLS 2.9 GLS400d Night Edition, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 35,212 miles. Price: £52,449, reduced by £1,950 from £54,399 since AskCar first saw it on 21 October 2026, 18 days ago. Fair price: £3,742 (6%) under the AskCar estimate of £56,191. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 26 October 2027. Dealer: Motorpoint Edinburgh in Edinburgh. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2022-b224e482f580
- 2022 Mercedes-Benz GLS 2.9 GLS400d Night Edition Executive, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 78,901 miles. Price: £43,895, reduced by £2,100 from £45,995 since AskCar first saw it on 11 August 2026, 89 days ago. Fair price: £2,912 (6%) under the AskCar estimate of £46,807. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 30 October 2026; ask the dealer for the current MOT. Dealer: R S Car Sales in Crewe. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2022-49a14bc615d2
- 2018 Mercedes-Benz GLS 3.0 GLS350d V6 AMG Line, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 57,794 miles. Price: £28,990, reduced by £1,000 from £29,990 since AskCar first saw it on 18 September 2026, 51 days ago. Fair price: £1,773 (5%) under the AskCar estimate of £30,763. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 19 May 2027. Dealer: Penistone Motor Group in Sheffield. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2018-f4dbcaa00e10
- 2017 Mercedes-Benz GLS, automatic, SUV, 5 doors, 7 seats, black. Mileage: 56,700 miles. Price: £28,500, unchanged since AskCar first saw it on 6 September 2026, 63 days ago. Fair price: £1,635 (5%) under the AskCar estimate of £30,135. Euro 6 emissions standard. MOT: the latest record we hold ran out on 14 August 2025; ask the dealer for the current MOT. Dealer: MRG Car Sales in Poole. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2017-784859b96b43
- 2016 Mercedes-Benz GLS 5.5 GLS63 V8 AMG, 577 bhp, automatic, petrol, SUV, 5 doors, 7 seats, blue. Mileage: 68,728 miles. Price: £34,990, reduced by £1,000 from £35,990 since AskCar first saw it on 15 September 2026, 54 days ago. Fair price: £1,992 (5%) under the AskCar estimate of £36,982. Euro 6 emissions standard. ULEZ compliant. Dealer: Main Road Motor Company in Worcester. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2016-301315656131
- 2025 Mercedes-Benz GLS 3.0 GLS450h MHEV AMG Line Premium Plus, 396 bhp, automatic, petrol, SUV, 5 doors, 7 seats, white. Mileage: 4,500 miles. Price: £75,000, reduced by £11,000 from £86,000 since AskCar first saw it on 20 July 2026, 111 days ago. Fair price: £4,080 (5%) under the AskCar estimate of £79,080. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sytner Group Mercedes-Benz of Temple Fortune in Camden. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2025-269ac410971c
- 2019 Mercedes-Benz GLS 3.0 GLS350d V6 AMG Line, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 58,000 miles. Price: £30,990, unchanged since AskCar first saw it on 3 November 2026, 5 days ago. Fair price: £1,627 (4%) under the AskCar estimate of £32,617. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 20 October 2026; ask the dealer for the current MOT. Dealer: LVMC in High Ongar. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2019-d19d2fce60bd
- 2019 Mercedes-Benz GLS 3.0 AMG Line, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 66,000 miles. Price: £28,999, reduced by £6,000 from £34,999 since AskCar first saw it on 25 September 2026, 44 days ago. Fair price: £1,502 (4%) under the AskCar estimate of £30,501. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 2 February 2027. Dealer: ACE Motor Vehicles in Durham. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2019-30c90ad3bbc3
- 2025 Mercedes-Benz GLS 3.0 GLS450dh MHEV AMG Line Premium Plus, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 3,318 miles. Price: £69,999, reduced by £15,080 from £85,079 since AskCar first saw it on 28 May 2026, 164 days ago. Fair price: £3,569 (4%) under the AskCar estimate of £73,568. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: cinch in Bolton. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2025-87b3eda9ad5c
- 2025 Mercedes-Benz GLS 3.0 GLS450dh MHEV AMG Line Premium Plus, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 2,722 miles. Price: £70,290, reduced by £18,705 from £88,995 since AskCar first saw it on 28 May 2026, 164 days ago. Fair price: £3,464 (4%) under the AskCar estimate of £73,754. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Stratstone Mercedes-Benz of Colchester in Colchester. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2025-69214602d37b
- 2026 Mercedes-Benz GLS 3.0 GLS450dh MHEV AMG Line Premium Plus, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 7,963 miles. Price: £73,999, reduced by £7,996 from £81,995 since AskCar first saw it on 18 September 2026, 51 days ago. Fair price: £3,441 (4%) under the AskCar estimate of £77,440. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: LSH Auto Mercedes-Benz of Birmingham in Birmingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2026-d39a91f9fa10
- 2017 Mercedes-Benz GLS 3.0 GLS350d V6 AMG Line, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, silver. Mileage: 64,000 miles. Price: £26,990, unchanged since AskCar first saw it on 28 May 2026, 164 days ago. Fair price: £1,207 (4%) under the AskCar estimate of £28,197. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 27 May 2027. Dealer: LTV in Manchester. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2017-f84d5cc31d73
- 2018 Mercedes-Benz GLS 3.0, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 69,000 miles. Price: £29,995, reduced by £1,000 from £30,995 since AskCar first saw it on 20 September 2026, 49 days ago. Fair price: £1,338 (4%) under the AskCar estimate of £31,333. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 4 April 2026; ask the dealer for the current MOT. Dealer: Saracen Motor Group in Rettendon. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2018-da85a667276a
- 2025 Mercedes-Benz GLS 3.0 GLS450dh MHEV AMG Line, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, silver. Mileage: 5,097 miles. Price: £69,995, reduced by £16,000 from £85,995 since AskCar first saw it on 28 May 2026, 164 days ago. Fair price: £3,073 (4%) under the AskCar estimate of £73,068. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sandown Group Mercedes-Benz of Guildford in Guildford. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2025-686a4a73d7f3
- 2022 Mercedes-Benz GLS 2.9 GLS400d Night Edition, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, blue. Mileage: 35,979 miles. Price: £53,795, reduced by £200 from £53,995 since AskCar first saw it on 24 October 2026, 15 days ago. Fair price: £2,164 (3%) under the AskCar estimate of £55,959. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 7 December 2026. Dealer: Group 1 Automotive Mercedes-Benz Of Stratford Upon Avon in Stratford-upon-Avon. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2022-610e51a558a8
- 2026 Mercedes-Benz GLS 3.0 GLS450dh MHEV Business Class, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 5,413 miles. Price: £83,490, unchanged since AskCar first saw it on 6 November 2026, 2 days ago. Fair price: £3,281 (3%) under the AskCar estimate of £86,771. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Stratstone Mercedes-Benz of Chelmsford in Chelmsford. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2026-4c89801c7e54
- 2020 Mercedes-Benz GLS 2.9 GLS400d AMG Line Premium Plus Executive, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, red. Mileage: 54,000 miles. Price: £47,990, unchanged since AskCar first saw it on 10 October 2026, 29 days ago. Fair price: £1,837 (3%) under the AskCar estimate of £49,827. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 11 October 2027. Dealer: LTV in Manchester. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2020-88f0723c0d08
- 2023 Mercedes-Benz GLS 2.9 GLS400d Night Edition, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 23,173 miles. Price: £57,750, reduced by £1,000 from £58,750 since AskCar first saw it on 30 September 2026, 39 days ago. Fair price: £2,184 (3%) under the AskCar estimate of £59,934. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 4 September 2027. Dealer: Sytner Group Mercedes-Benz of Bristol in Bristol. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2023-5fab6de682a1
- 2019 Mercedes-Benz GLS 3.0 GLS350d V6 Grand Edition, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 55,700 miles. Price: £36,950, reduced by £2,000 from £38,950 since AskCar first saw it on 16 October 2026, 23 days ago. Fair price: £1,343 (3%) under the AskCar estimate of £38,293. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 10 February 2027. Dealer: Best Value Auto in Nottingham. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2019-8860e538b007
- 2024 Mercedes-Benz GLS 3.0 GLS450dh MHEV AMG Line Premium Plus, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 13,605 miles. Price: £64,685, reduced by £15,990 from £80,675 since AskCar first saw it on 14 June 2026, 147 days ago. Fair price: £2,245 (3%) under the AskCar estimate of £66,930. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: JCT600 Volkswagen Sheffield in Sheffield. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2024-2d26053ba2b2
- 2018 Mercedes-Benz GLS 3.0 GLS350d V6 AMG Line, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 33,000 miles. Price: £33,990, reduced by £1,000 from £34,990 since AskCar first saw it on 20 September 2026, 49 days ago. Fair price: £1,174 (3%) under the AskCar estimate of £35,164. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 4 August 2027. Dealer: LTV in Manchester. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2018-8a6596e8699f
- 2023 Mercedes-Benz GLS 2.9 GLS400d Night Edition, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 45,000 miles. Price: £51,980, reduced by £2,500 from £54,480 since AskCar first saw it on 30 September 2026, 39 days ago. Fair price: £1,701 (3%) under the AskCar estimate of £53,681. Euro 6 emissions standard. ULEZ compliant. Dealer: Auto100.Co.Uk in Sutton in Ashfield. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2023-a9d0423e7968
- 2019 Mercedes-Benz GLS 3.0 AMG Line, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 56,500 miles. Price: £31,490, reduced by £2,843 from £34,333 since AskCar first saw it on 11 September 2026, 58 days ago. Fair price: £950 (2%) under the AskCar estimate of £32,440. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 20 May 2027. Dealer: Stratstone Mercedes-Benz of Lakeside in Chafford Hundred and West Thurrock. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2019-60f5478934c6
- 2025 Mercedes-Benz GLS 3.0 GLS450dh MHEV AMG Line Premium Plus, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 9,006 miles. Price: £68,490, reduced by £3,500 from £71,990 since AskCar first saw it on 20 September 2026, 49 days ago. Fair price: £2,010 (2%) under the AskCar estimate of £70,500. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Group 1 Automotive Mercedes-Benz of Stevenage in Stevenage. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2025-d5d0e7115aab
- 2016 Mercedes-Benz GLS 3.0 GLS350d V6 AMG Line, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 53,000 miles. Price: £28,295, unchanged since AskCar first saw it on 7 November 2026, 1 day ago. Fair price: £793 (2%) under the AskCar estimate of £29,088. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 11 October 2027. Dealer: Bramshaw Bespoke Vehicles in Salisbury. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2016-852f8623d6f5
- 2025 Mercedes-Benz GLS 3.0 GLS450dh MHEV AMG Line Premium Plus, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 8,458 miles. Price: £69,000, reduced by £17,000 from £86,000 since AskCar first saw it on 29 May 2026, 163 days ago. Fair price: £1,843 (2%) under the AskCar estimate of £70,843. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sytner Group Mercedes-Benz of Swindon in Swindon. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2025-0bf96f64fb3f
- 2025 Mercedes-Benz GLS 3.0 GLS450dh MHEV AMG Line Premium Plus, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 5,394 miles. Price: £70,999, reduced by £7,000 from £77,999 since AskCar first saw it on 19 September 2026, 50 days ago. Fair price: £1,792 (2%) under the AskCar estimate of £72,791. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Lookers Mercedes-Benz of Maidstone in Maidstone. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2025-33a2aa10c7b0
- 2019 Mercedes-Benz GLS 3.0 GLS350d V6 Grand Edition, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, silver. Mileage: 48,000 miles. Price: £38,990, reduced by £1,000 from £39,990 since AskCar first saw it on 24 September 2026, 45 days ago. Fair price: £927 (2%) under the AskCar estimate of £39,917. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 17 August 2027. Dealer: LTV in Manchester. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2019-476802bfac2a
- 2017 Mercedes-Benz GLS 3.0 GLS350d V6, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 69,968 miles. Price: £26,499, unchanged since AskCar first saw it on 31 October 2026, 8 days ago. Fair price: £629 (2%) under the AskCar estimate of £27,128. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 6 January 2027. Dealer: Prestige Motor Trader in Croydon. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2017-6cff72af895f
- 2023 Mercedes-Benz GLS 2.9 GLS400d Night Edition, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 52,442 miles. Price: £50,599, unchanged since AskCar first saw it on 30 October 2026, 9 days ago. Fair price: £971 (1%) under the AskCar estimate of £51,570. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 17 August 2027. Dealer: Lookers Mercedes-Benz of Eastbourne in Eastbourne. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2023-d08881a3193f
- 2018 Mercedes-Benz GLS 3.0 GLS350d V6 AMG Line, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, white. Mileage: 51,411 miles. Price: £31,300, reduced by £200 from £31,500 since AskCar first saw it on 23 October 2026, 16 days ago. Fair price: £540 (1%) under the AskCar estimate of £31,840. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 16 October 2027. Dealer: Saxtons.co.uk in Chelmsford. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2018-24629538050e
- 2025 Mercedes-Benz GLS 3.0 GLS450dh MHEV AMG Line Premium Plus, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 4,602 miles. Price: £71,995, reduced by £5,000 from £76,995 since AskCar first saw it on 30 July 2026, 101 days ago. Fair price: £1,174 (1%) under the AskCar estimate of £73,169. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: House Of Motors in Romford. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2025-b500a34de359
- 2025 Mercedes-Benz GLS 3.0 GLS450dh MHEV, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 15,500 miles. Price: £78,995, reduced by £11,000 from £89,995 since AskCar first saw it on 28 May 2026, 164 days ago. Fair price: £1,262 (1%) under the AskCar estimate of £80,257. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: MotorClass Premium Vehicles in Wigan. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2025-a83e5dae99ea
- 2021 Mercedes-Benz GLS 2.9 GLS400d AMG Line Premium Plus Executive, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 84,000 miles. Price: £42,995, reduced by £6,000 from £48,995 since AskCar first saw it on 3 July 2026, 128 days ago. Fair price: £640 (1%) under the AskCar estimate of £43,635. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 6 February 2027. Dealer: Moy Auto Services in Dungannon. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2021-4f6d43f2a9dc
- 2024 Mercedes-Benz GLS 3.0 GLS450dh MHEV AMG Line Premium Plus, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 17,000 miles. Price: £64,995, reduced by £11,955 from £76,950 since AskCar first saw it on 28 May 2026, 164 days ago. Fair price: £967 (1%) under the AskCar estimate of £65,962. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: S M Specialist Cars in Bedford. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2024-a0670ade7d0f
- 2026 Mercedes-Benz GLS 3.0 GLS450dh MHEV Business Class, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 2,095 miles. Price: £87,799, reduced by £2,540 from £90,339 since AskCar first saw it on 7 November 2026, 1 day ago. Fair price: £1,282 (1%) under the AskCar estimate of £89,081. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Lookers Mercedes-Benz of Brighton in Brighton and Hove. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2026-371a99b1e628
- 2025 Mercedes-Benz GLS 3.0 GLS450dh MHEV Business Class, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 6,788 miles. Price: £88,500, unchanged since AskCar first saw it on 28 October 2026, 11 days ago. Fair price: £1,209 (1%) under the AskCar estimate of £89,709. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sytner Group Mercedes-Benz of West London in London. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2025-ec8137b4f7bc
- 2020 Mercedes-Benz GLS 2.9 GLS400d AMG Line Premium, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 37,500 miles. Price: £48,495, unchanged since AskCar first saw it on 3 November 2026, 5 days ago. Fair price: £636 (1%) under the AskCar estimate of £49,131. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 21 September 2027. Dealer: Quickars in Stoke Poges. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2020-5514d2038006
- 2019 Mercedes-Benz GLS 3.0 GLS350d V6 Grand Edition, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 36,400 miles. Price: £41,999, unchanged since AskCar first saw it on 11 October 2026, 28 days ago. Fair price: £495 (1%) under the AskCar estimate of £42,494. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 12 September 2026; ask the dealer for the current MOT. Dealer: Blakedown Car Company in Wombourne. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2019-93443f8118d1
- 2017 Mercedes-Benz GLS 3.0 GLS350d V6 AMG Line, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 55,000 miles. Price: £29,480, reduced by £4,960 from £34,440 since AskCar first saw it on 31 July 2026, 100 days ago. Fair price: £325 (1%) under the AskCar estimate of £29,805. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 17 April 2027. Dealer: Oakdene Collection in Alfreton. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2017-d17dcf0eb229
- 2019 Mercedes-Benz GLS 2.9 GLS400d AMG Line Premium Plus Executive, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 82,000 miles. Price: £39,995, reduced by £6,000 from £45,995 since AskCar first saw it on 10 June 2026, 151 days ago. Fair price: £390 (under 1%) under the AskCar estimate of £40,385. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 7 May 2027. Dealer: AH Specialist Cars in Watford. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2019-e9d276a5bb25
- 2017 Mercedes-Benz GLS 3.0 GLS350d V6 AMG Line, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, silver. Mileage: 68,862 miles. Price: £26,995, unchanged since AskCar first saw it on 23 October 2026, 16 days ago. Fair price: £242 (under 1%) under the AskCar estimate of £27,237. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 12 October 2027. Dealer: Platinum Plus Cars in Manchester. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2017-8176a1680e8a
- 2020 Mercedes-Benz GLS 2.9 GLS400d AMG Line Premium Plus, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 66,681 miles. Price: £43,000, unchanged since AskCar first saw it on 24 October 2026, 15 days ago. Fair price: £354 (under 1%) under the AskCar estimate of £43,354. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 7 November 2027. Dealer: Saxtons.co.uk in Chelmsford. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2020-420eb62b643e
- 2025 Mercedes-Benz GLS 3.0 GLS450dh MHEV AMG Line Premium Plus, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 6,616 miles. Price: £71,500, reduced by £14,500 from £86,000 since AskCar first saw it on 29 May 2026, 163 days ago. Fair price: £508 (under 1%) under the AskCar estimate of £72,008. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Sytner Group Mercedes-Benz of Sunderland in Sunderland. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2025-fdb81e61311f
- 2026 Mercedes-Benz GLS 3.0 GLS450dh MHEV Business Class, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 3,596 miles. Price: £86,993, reduced by £5,957 from £92,950 since AskCar first saw it on 26 September 2026, 43 days ago. Fair price: £616 (under 1%) under the AskCar estimate of £87,609. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Group 1 Automotive Mercedes-Benz Of Derby in Derby. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2026-43002988150c
- 2026 Mercedes-Benz GLS 3.0 GLS450dh MHEV Business Class, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 9,679 miles. Price: £82,999, reduced by £9,000 from £91,999 since AskCar first saw it on 18 September 2026, 51 days ago. Fair price: £555 (under 1%) under the AskCar estimate of £83,554. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: LSH Auto Mercedes-Benz of Stockport in Stockport. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2026-93250e9f6dcf
- 2021 Mercedes-Benz GLS 2.9 GLS400d AMG Line Premium Plus Executive, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, silver. Mileage: 78,793 miles. Price: £44,995, reduced by £7,000 from £51,995 since AskCar first saw it on 6 June 2026, 155 days ago. Fair price: £289 (under 1%) under the AskCar estimate of £45,284. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 18 June 2027. Dealer: Iac Cars in Winchester. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2021-aec98d0c24ed
- 2024 Mercedes-Benz GLS 3.0 GLS450dh MHEV Business Class, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 13,763 miles. Price: £76,585, reduced by £9,400 from £85,985 since AskCar first saw it on 14 July 2026, 117 days ago. Fair price: £475 (under 1%) under the AskCar estimate of £77,060. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: JCT600 Volkswagen Sheffield in Sheffield. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2024-6eb37790409a
- 2025 Mercedes-Benz GLS 3.0 GLS450dh MHEV AMG Line Premium Plus, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 15,020 miles. Price: £67,990, reduced by £17,900 from £85,890 since AskCar first saw it on 28 May 2026, 164 days ago. Fair price: £403 (under 1%) under the AskCar estimate of £68,393. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Marshall Motor Group Lamborghini Poole in Poole. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2025-07ace323788a
- 2020 Mercedes-Benz GLS 2.9 GLS400d AMG Line Premium Plus, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, blue. Mileage: 64,643 miles. Price: £42,500, reduced by £4,150 from £46,650 since AskCar first saw it on 18 August 2026, 82 days ago. Fair price: £239 (under 1%) under the AskCar estimate of £42,739. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 2 July 2027. Dealer: Sytner Select Northampton in Northampton. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2020-3420a120af4c
- 2018 Mercedes-Benz GLS 3.0 AMG Line, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 55,000 miles. Price: £29,995, reduced by £4,700 from £34,695 since AskCar first saw it on 21 July 2026, 110 days ago. Fair price: £129 (under 1%) under the AskCar estimate of £30,124. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 17 November 2026. Dealer: S & R Motors in Swindon. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2018-c646c9b052d9
- 2026 Mercedes-Benz GLS 3.0 GLS450dh MHEV Business Class, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 7,751 miles. Price: £84,650, reduced by £1,050 from £85,700 since AskCar first saw it on 21 October 2026, 18 days ago. Fair price: £343 (under 1%) under the AskCar estimate of £84,993. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Saxtons.co.uk in Chelmsford. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2026-00aa8d8a2303
- 2025 Mercedes-Benz GLS 3.0 GLS450dh MHEV AMG Line Premium Plus, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 4,304 miles. Price: £72,990, reduced by £15,705 from £88,695 since AskCar first saw it on 28 May 2026, 164 days ago. Fair price: £271 (under 1%) under the AskCar estimate of £73,261. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: JCT600 Doncaster Audi in Doncaster. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2025-5f2a46b4bc6c
- 2024 Mercedes-Benz GLS 3.0 GLS450dh MHEV Business Class, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 24,105 miles. Price: £73,500, reduced by £10,500 from £84,000 since AskCar first saw it on 28 May 2026, 164 days ago. Fair price: £216 (under 1%) under the AskCar estimate of £73,716. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Saxtons.co.uk in Chelmsford. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2024-8b7b1c35ecb3
- 2022 Mercedes-Benz GLS 2.9 GLS400d AMG Line Night Edition, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, red. Mileage: 69,729 miles. Price: £46,995, unchanged since AskCar first saw it on 4 October 2026, 35 days ago. Fair price: £59 (under 1%) under the AskCar estimate of £47,054. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 2 August 2027. Dealer: Just Audi VW in Lincoln. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2022-3107dee63a76
- 2022 Mercedes-Benz GLS 2.9 GLS400d AMG Line Night Edition Executive, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 54,000 miles. Price: £50,990, unchanged since AskCar first saw it on 29 September 2026, 40 days ago. Fair price: £2 (under 1%) under the AskCar estimate of £50,992. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 8 October 2026; ask the dealer for the current MOT. Dealer: LTV in Manchester. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2022-3ee8c2d6e3c6
- 2022 Mercedes-Benz GLS 2.9 GLS400d Night Edition, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 32,750 miles. Price: £56,998, reduced by £5,500 from £62,498 since AskCar first saw it on 30 May 2026, 162 days ago. Fair price: £56 (under 1%) over the AskCar estimate of £56,942. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 29 November 2026. Dealer: Arnold Clark Mercedes-Benz of Dundee in Dundee. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2022-80eb206cb516
- 2024 Mercedes-Benz GLS 3.0 GLS450dh MHEV Business Class, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 11,390 miles. Price: £77,985, reduced by £13,015 from £91,000 since AskCar first saw it on 28 May 2026, 164 days ago. Fair price: £137 (under 1%) over the AskCar estimate of £77,848. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: JCT600 Volkswagen Sheffield in Sheffield. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2024-fa384912d7f1
- 2022 Mercedes-Benz GLS 2.9 GLS400d Night Edition Executive, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 78,640 miles. Price: £46,995, reduced by £2,000 from £48,995 since AskCar first saw it on 23 August 2026, 77 days ago. Fair price: £101 (under 1%) over the AskCar estimate of £46,894. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 11 August 2027. Dealer: AA Prestige Cars in Slough. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2022-72fda5abcbf5
- 2019 Mercedes-Benz GLS 3.0 AMG Line, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 66,431 miles. Price: £30,495, unchanged since AskCar first saw it on 29 October 2026, 10 days ago. Fair price: £87 (under 1%) over the AskCar estimate of £30,408. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 1 October 2027. Dealer: Sandown Group Mercedes-Benz of Poole in Poole. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2019-06d0969f3540
- 2017 Mercedes-Benz GLS 3.0 GLS350d V6 Designo Line, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, blue. Mileage: 61,701 miles. Price: £32,490, reduced by £505 from £32,995 since AskCar first saw it on 15 September 2026, 54 days ago. Fair price: £103 (under 1%) over the AskCar estimate of £32,387. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 31 July 2026; ask the dealer for the current MOT. Dealer: Elton Cars in Peterborough. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2017-dace2d04985d
- 2020 Mercedes-Benz GLS 2.9, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 77,165 miles. Price: £39,990, unchanged since AskCar first saw it on 4 November 2026, 4 days ago. Fair price: £147 (under 1%) over the AskCar estimate of £39,843. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 8 February 2027. Dealer: Stratstone Mercedes-Benz of Chelmsford in Chelmsford. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2020-33a21af37922
- 2023 Mercedes-Benz GLS 2.9 GLS400d Night Edition, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 36,270 miles. Price: £56,579, raised by £180 from £56,399 since AskCar first saw it on 21 October 2026, 18 days ago. Fair price: £310 (under 1%) over the AskCar estimate of £56,269. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 5 January 2027. Dealer: cinch in Chichester. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2023-61133a0fdfb3
- 2021 Mercedes-Benz GLS 2.9 GLS400d AMG Line Premium Plus, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 41,030 miles. Price: £51,999, reduced by £4,500 from £56,499 since AskCar first saw it on 2 November 2026, 6 days ago. Fair price: £302 (under 1%) over the AskCar estimate of £51,697. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 16 October 2027. Dealer: Webuycarsformore.com in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2021-e982a2088f0a
- 2020 Mercedes-Benz GLS 2.9 GLS400d AMG Line Premium Plus, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 47,371 miles. Price: £48,995, reduced by £1,000 from £49,995 since AskCar first saw it on 3 November 2026, 5 days ago. Fair price: £323 (under 1%) over the AskCar estimate of £48,672. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 17 March 2027. Dealer: JCT600 Doncaster Audi in Doncaster. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2020-6229e6ab91a2
- 2018 Mercedes-Benz GLS 3.0 GLS350d V6 AMG Line, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, silver. Mileage: 85,647 miles. Price: £25,500, reduced by £900 from £26,400 since AskCar first saw it on 26 September 2026, 43 days ago. Fair price: £177 (under 1%) over the AskCar estimate of £25,323. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 6 December 2026. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2018-6dd3f15d08f4
- 2018 Mercedes-Benz GLS 3.0 Grand Edition, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 20,536 miles. Price: £43,570, unchanged since AskCar first saw it on 4 November 2026, 4 days ago. Fair price: £368 (under 1%) over the AskCar estimate of £43,202. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 23 August 2027. Dealer: Stratstone Mercedes-Benz Of Leeds in Leeds. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2018-bb95e664605b
- 2025 Mercedes-Benz GLS 3.0 GLS450dh MHEV AMG Line, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 9,399 miles. Price: £70,995, reduced by £4,795 from £75,790 since AskCar first saw it on 19 September 2026, 50 days ago. Fair price: £658 (under 1%) over the AskCar estimate of £70,337. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Stratstone Mercedes-Benz Of Leeds in Leeds. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2025-c043c4014bb4
- 2023 Mercedes-Benz GLS 2.9 GLS400d Night Edition, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, blue. Mileage: 28,500 miles. Price: £59,195, reduced by £3,800 from £62,995 since AskCar first saw it on 15 September 2026, 54 days ago. Fair price: £615 (1%) over the AskCar estimate of £58,580. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 6 May 2027. Dealer: Sandown Group Mercedes-Benz of Epsom in Epsom. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2023-2fbaee3648b2
- 2021 Mercedes-Benz GLS GLS400d AMG Line Premium, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 43,995 miles. Price: £49,990, unchanged since AskCar first saw it on 6 November 2026, 2 days ago. Fair price: £521 (1%) over the AskCar estimate of £49,469. Euro 6 emissions standard. ULEZ compliant. Dealer: Acklam Cars in Acklam. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2021-37b247f0d4d0
- 2022 Mercedes-Benz GLS 2.9, automatic, diesel, SUV, 5 doors, 7 seats, blue. Mileage: 53,250 miles. Price: £51,995, reduced by £4,000 from £55,995 since AskCar first saw it on 30 May 2026, 162 days ago. Fair price: £568 (1%) over the AskCar estimate of £51,427. Euro 6 emissions standard. ULEZ compliant. Dealer: ALX Specialist Cars in Ripon. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2022-d36c7d61bfbb
- 2017 Mercedes-Benz GLS 3.0 GLS350d V6 Designo Line, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, silver. Mileage: 65,000 miles. Price: £31,995, reduced by £1,000 from £32,995 since AskCar first saw it on 9 October 2026, 30 days ago. Fair price: £361 (1%) over the AskCar estimate of £31,634. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 9 January 2027. Dealer: LK Cars in Uppermill. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2017-14021610022a
- 2026 Mercedes-Benz GLS 3.0 GLS450dh MHEV Business Class, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 2,569 miles. Price: £88,999, reduced by £1,150 from £90,149 since AskCar first saw it on 7 November 2026, 1 day ago. Fair price: £1,008 (1%) over the AskCar estimate of £87,991. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Lookers Mercedes-Benz of Wolverhampton in Wolverhampton. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2026-3f9c9c62ca4e
- 2016 Mercedes-Benz GLS 3.0 GLS350d V6 AMG Line, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 66,944 miles. Price: £26,990, unchanged since AskCar first saw it on 1 November 2026, 7 days ago. Fair price: £332 (1%) over the AskCar estimate of £26,658. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 19 June 2027. Dealer: AS Cars (UK) in Dunstable. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2016-b65bf71b7ae8
- 2023 Mercedes-Benz GLS 4.0 GLS63h V8 BiTurbo MHEV AMG Night Edition Executive, 623 bhp, automatic, petrol, SUV, 5 doors, 7 seats, black. Mileage: 52,900 miles. Price: £77,995, reduced by £15,000 from £92,995 since AskCar first saw it on 28 May 2026, 164 days ago. Fair price: £1,076 (1%) over the AskCar estimate of £76,919. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 21 June 2027. Dealer: Shaks Specialist Cars in Huddersfield. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2023-d72fd86e4d02
- 2018 Mercedes-Benz GLS 3.0 GLS350d V6 AMG Line, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, white. Mileage: 68,750 miles. Price: £28,989, reduced by £1,000 from £29,989 since AskCar first saw it on 2 September 2026, 67 days ago. Fair price: £427 (1%) over the AskCar estimate of £28,562. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 2 February 2027. Dealer: A6 Motors in Luton. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2018-c1d4836b79e9
- 2022 Mercedes-Benz GLS 2.9 GLS400d Night Edition, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 52,785 miles. Price: £51,950, reduced by £1,840 from £53,790 since AskCar first saw it on 16 August 2026, 84 days ago. Fair price: £840 (1%) over the AskCar estimate of £51,110. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 19 October 2026; ask the dealer for the current MOT. Dealer: Redline Specialist Cars in Knaresborough. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2022-7cb2866cbadc
- 2020 Mercedes-Benz GLS 2.9 GLS400d AMG Line Premium Plus, 325 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 46,175 miles. Price: £49,950, unchanged since AskCar first saw it on 5 October 2026, 34 days ago. Fair price: £963 (1%) over the AskCar estimate of £48,987. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 16 January 2027. Dealer: Magee Automotive in Lisburn. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2020-9b506d0e814a
- 2019 Mercedes-Benz GLS 3.0, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 55,000 miles. Price: £40,990, unchanged since AskCar first saw it on 28 May 2026, 164 days ago. Fair price: £828 (2%) over the AskCar estimate of £40,162. Euro 6 emissions standard. ULEZ compliant. Dealer: Optimum Vehicle Group in Peterborough. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2019-b8263d621c4f
- 2024 Mercedes-Benz GLS 3.0 GLS450h MHEV AMG Line Premium Plus, 396 bhp, automatic, petrol, SUV, 5 doors, 7 seats, black. Mileage: 16,341 miles. Price: £73,500, unchanged since AskCar first saw it on 30 October 2026, 9 days ago. Fair price: £1,515 (2%) over the AskCar estimate of £71,985. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Saxtons.co.uk in Chelmsford. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2024-8628b1d1cf27
- 2024 Mercedes-Benz GLS 3.0 GLS450dh MHEV Business Class, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 4,000 miles. Price: £83,989, reduced by £8,000 from £91,989 since AskCar first saw it on 10 July 2026, 121 days ago. Fair price: £1,783 (2%) over the AskCar estimate of £82,206. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Blackstone Motors in Brent. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2024-c4e29816f0d0
- 2018 Mercedes-Benz GLS 3.0 Grand Edition, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 79,000 miles. Price: £31,495, reduced by £1,000 from £32,495 since AskCar first saw it on 9 October 2026, 30 days ago. Fair price: £675 (2%) over the AskCar estimate of £30,820. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 11 March 2027. Dealer: LK Cars in Uppermill. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2018-1912a03934ce
- 2024 Mercedes-Benz GLS 3.0 GLS450dh MHEV AMG Line Premium Plus, 382 bhp, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 15,000 miles. Price: £67,995, reduced by £2,000 from £69,995 since AskCar first saw it on 3 October 2026, 36 days ago. Fair price: £1,465 (2%) over the AskCar estimate of £66,530. Euro 6 emissions standard. ULEZ compliant. MOT: first test not yet due. Dealer: Southern Prestige Cars in Crawley. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2024-26dee4805154
- 2021 Mercedes-Benz GLS 2.9, automatic, diesel, SUV, 5 doors, 7 seats, grey. Mileage: 66,752 miles. Price: £46,995, unchanged since AskCar first saw it on 3 November 2026, 5 days ago. Fair price: £1,157 (2%) over the AskCar estimate of £45,838. Euro 6 emissions standard. ULEZ compliant. Dealer: Stonehouse Motor Company in Stonehouse. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2021-a723b99127e4
- 2019 Mercedes-Benz GLS 3.0 Grand Edition, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 36,000 miles. Price: £44,990, unchanged since AskCar first saw it on 8 August 2026, 92 days ago. Fair price: £1,176 (2%) over the AskCar estimate of £43,814. Euro 6 emissions standard. ULEZ compliant. MOT: the latest record we hold ran out on 12 September 2026; ask the dealer for the current MOT. Dealer: Optimum Vehicle Group in Peterborough. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2019-b03044b32ebe
- 2019 Mercedes-Benz GLS 3.0 Grand Edition, 254 bhp, automatic, diesel, SUV, 5 doors, 7 seats, black. Mileage: 66,350 miles. Price: £37,950, unchanged since AskCar first saw it on 10 September 2026, 59 days ago. Fair price: £1,158 (3%) over the AskCar estimate of £36,792. Euro 6 emissions standard. ULEZ compliant. MOT: valid until 18 August 2027. Dealer: Martin Atkinson Specialist Cars in Scunthorpe. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2019-579130035d84
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