2018 Mercedes-Benz GLS 3.0 GLS350d V6 AMG Line

Overview

• Make: Mercedes-Benz
• Model: GLS
• Trim: AMG Line
• Version: 3.0 GLS350d V6 AMG Line G-Tronic 4WD Euro 6 (s/s) 5dr (254 bhp)
• Year: 2018
• Mileage: 33,000 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 7 seats
• Engine: 3.0 litres, 254 bhp
• Gearbox: Automatic (G-Tronic)
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 199 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 33,000 miles on the clock, this 2018 Mercedes-Benz GLS AMG Line has done roughly 25,400 fewer miles than a typical 2018 Mercedes-Benz GLS. The AskCar estimate for this car is £35,157. It is priced at £33,990, which is £1,167 below that estimate. The AskCar estimate draws on 143 Mercedes-Benz GLS adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 48 days ago. Its asking price has since fallen by £1,000. The government's MOT record matches its advertised mileage. You can find this car at LTV in Bury. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,167 (3%) under the AskCar estimate of £35,157.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 143 priced Mercedes-Benz GLS adverts across different ages and specifications, as of 7 November 2026.

A 2018 Mercedes-Benz GLS with the 3.0 diesel engine is typically advertised at £30,000: the median of the 15 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2018 Mercedes-Benz GLS has been on sale for at least 48 days.

Price history

AskCar first saw this advert on 20 September 2026 at £34,990. Its asking price is now £33,990, £1,000 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

• 20 September 2026: £34,990
• 30 October 2026: £33,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 4 August 2027.

It has had 6 MOTs. The latest, on 6 July 2026, passed.

Advisories at the latest test: offside front outer drive shaft joint constant velocity boot severely deteriorated.

Mileage at that test: 32,242 miles, which matches the advertised 33,000 miles.

Advertised mileage is about 25,400 miles lower than the median mileage of a 2018 Mercedes-Benz GLS on AskCar.

Similar cars

10 other 2018 Mercedes-Benz GLS AMG Line 3.0 diesel automatic SUVs are for sale at UK dealers, from £23,500 to £37,500, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2018 Mercedes-Benz GLS AMG Line, 3.0 diesel SUV, white. Mileage: 29,000 miles. Price: £37,500, £3,510 more than this car. Dealer: E & E Car Sales in Canvey Island. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2018-799a044589ca
• 2018 Mercedes-Benz GLS AMG Line, 3.0 diesel SUV, white. Mileage: 47,220 miles. Price: £28,899, £5,091 less than this car. Dealer: Fords of Winsford Manchester in Manchester. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2018-9285f4710095
• 2018 Mercedes-Benz GLS AMG Line, 3.0 diesel SUV, white. Mileage: 51,411 miles. Price: £31,300, £2,690 less than this car. Dealer: Saxtons.co.uk in Chelmsford. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2018-24629538050e