2017 Mercedes-Benz GLS 3.0 GLS350d V6

Overview

• Make: Mercedes-Benz
• Model: GLS
• Version: 3.0 GLS350d V6 G-Tronic 4WD Euro 6 (s/s) 5dr (254 bhp)
• Year: 2017
• Mileage: 69,968 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

This 2017 Mercedes-Benz GLS has covered 69,968 miles, around 5,000 more miles than is typical for its age. Its asking price of £26,499 is £629 below the AskCar estimate of £27,128. The AskCar estimate uses UK dealer asking prices, including 143 Mercedes-Benz GLS adverts, and accounts for the car’s age, mileage and specification. This car was first seen in our listings data 8 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Prestige Motor Trader, based in Croydon. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £629 (2%) under the AskCar estimate of £27,128.

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 8 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 8 November 2026.

Time on sale

This 2017 Mercedes-Benz GLS has been on sale for at least 8 days.

Price history

AskCar first saw this advert on 31 October 2026 at £26,499. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 6 January 2027.

It has had 11 MOTs. The latest, on 7 January 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 65,236 miles, which matches the advertised 69,968 miles.

Advertised mileage is about 5,000 miles higher than the median mileage of a 2017 Mercedes-Benz GLS on AskCar.