2017 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: 2017
• Mileage: 91,410 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 7 seats
• Engine: 3.0 litres, 254 bhp
• Gearbox: Automatic (G-Tronic)
• Drive: Four-wheel drive
• Colour: Black
• CO2: 199 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2017 Mercedes-Benz GLS AMG Line has covered 91,410 miles, around 26,400 more miles than is typical for its age. Priced at £24,590, it is advertised £1,396 above the AskCar estimate of £23,194. The AskCar estimate uses 143 UK dealer adverts for the Mercedes-Benz GLS, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 137 days ago, the asking price has dropped by £1,400. Our records show an MOT expiry date of 7 September 2026, which has passed. Ask the dealer for an update. Its advertised mileage matches the government's MOT record. The seller is Group 1 Automotive Mercedes-Benz of Leicester, based in Leicester. 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: £1,396 (6%) over the AskCar estimate of £23,194.

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 2017 Mercedes-Benz GLS with the 3.0 diesel engine is typically advertised at £28,200: the median of the 12 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2017 Mercedes-Benz GLS has been on sale for at least 137 days.

Price history

AskCar first saw this advert on 23 June 2026 at £25,990. Its asking price is now £24,590, £1,400 less. The latest price cut was seen on 6 November 2026.

Price changes recorded:

• 24 June 2026: £25,990
• 8 July 2026: £25,690
• 12 July 2026: £25,650
• 14 October 2026: £25,250
• 21 October 2026: £25,080
• 28 October 2026: £24,990
• 6 November 2026: £24,590

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: the latest record we hold ran out on 7 September 2026; ask the dealer for the current MOT.

It failed its MOT on 13 August 2025 (nearside headlamp aim too high) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 75,036 miles, which matches the advertised 91,410 miles.

Advertised mileage is about 26,400 miles higher than the median mileage of a 2017 Mercedes-Benz GLS on AskCar.

Similar cars

6 other 2017 Mercedes-Benz GLS AMG Line 3.0 diesel automatic SUVs are for sale at UK dealers, from £25,990 to £49,994, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2017 Mercedes-Benz GLS AMG Line, 3.0 diesel SUV, silver. Mileage: 68,862 miles. Price: £26,995, £2,405 more than this car. Dealer: Platinum Plus Cars in Manchester. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2017-8176a1680e8a
• 2017 Mercedes-Benz GLS AMG Line, 3.0 diesel SUV, black. Mileage: 65,000 miles. Price: £25,990, £1,400 more than this car. Dealer: Vogue Motor Company in Bolton. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2017-15387b8ca150
• 2017 Mercedes-Benz GLS AMG Line, 3.0 diesel SUV, silver. Mileage: 64,000 miles. Price: £26,990, £2,400 more than this car. Dealer: LTV in Manchester. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2017-f84d5cc31d73

• The nearest: 2017 Mercedes-Benz GLS AMG Line, 3.0 diesel SUV, black, 34 miles from this car. Mileage: 55,000 miles. Price: £29,480, £4,890 more than this car. Dealer: Oakdene Collection in Alfreton. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2017-d17dcf0eb229