2017 Mercedes-Benz GLS 3.0 GLS350d V6
Version: 3.0 GLS350d V6 G-Tronic 4WD Euro 6 (s/s) 5dr (254 bhp)
Price: £26,499. Fair price: £375 (1%) under the AskCar estimate of £26,874, our expected asking price for this car from its model, age, mileage and specification, drawing on 132 priced Mercedes-Benz GLS adverts on AskCar as of 31 October 2026.
AskCar lists 138 used Mercedes-Benz GLS from 109 UK dealerships, as of 31 October 2026.
Overview
- Make
- Mercedes-Benz
- Model
- GLS
- Version
- 3.0 GLS350d V6 G-Tronic 4WD Euro 6 (s/s) 5dr (254 bhp)
- Mileage
- 69,968 miles
- Year
- 2017
- Fuel type
- Diesel
- Body type
- SUV
- Engine
- 3.0 L
- Gearbox
- Automatic
- Power
- 254 bhp
- Seats
- 7
- CO2
- 199 g/km
- Colour
- Grey
- Doors
- 5
- Driven wheels
- Four Wheel Drive
- Gearbox version
- G-Tronic
- Engine badge
- GLS350d V6
- Emissions standard
- Euro 6
About this car
This 2017 Mercedes-Benz GLS has covered 69,968 miles, around 5,500 more miles than is typical for its age. Its asking price of £26,499 is £375 below the AskCar estimate of £26,874. The AskCar estimate uses UK dealer asking prices, including 132 Mercedes-Benz GLS adverts, and accounts for the car’s age, mileage and specification. We first recorded this car for sale today. The latest MOT record shows an expiry date of 6 January 2027, with the advertised mileage consistent with the recorded reading. You can find this car at Prestige Motor Trader in Croydon.
Stock data as of 31 October 2026.
Price history
AskCar first saw this advert on 31 October 2026.
| Date observed | Asking price |
|---|---|
| 31 October 2026 | £26,499 |
Price and mileage comparison
Fair price: £375 (1%) under the AskCar estimate of £26,874.
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 132 priced Mercedes-Benz GLS adverts across different ages and specifications, as of 31 October 2026.
Advertised mileage is about 5,500 miles higher than the median mileage of a 2017 Mercedes-Benz GLS on AskCar.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT: valid until 6 January 2027. 65,236 miles at the last test.
Other matching cars
1 other 2017 Mercedes-Benz GLS automatic diesel cars are for sale at UK dealers from £25,000 to £25,000, as of 31 October 2026.
- 2017 Mercedes-Benz GLS. Price: £25,000. Mileage: 65,000 miles. Dealer: Rockstar Motors in Colchester. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2017-8c95e3e90c52
The 1 matching cars have covered 65,000 miles, compared with 69,968 miles for this car.
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.
Browse all Mercedes-Benz GLS cars for sale · 2017 Mercedes-Benz GLS price guide
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Photos
27 photos of this car are on its AskCar page.
How to contact the dealer and its opening hours are on this AskCar page.
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.