2017 Mercedes-Benz GLS
Price: £28,500. Fair price: £1,635 (5%) under the AskCar estimate of £30,135, our expected asking price for this car from its model, age, mileage and specification, drawing on 143 priced Mercedes-Benz GLS adverts on AskCar as of 8 November 2026.
AskCar lists 150 used Mercedes-Benz GLS from 116 UK dealerships, as of 8 November 2026.
Overview
- Make: Mercedes-Benz
- Model: GLS
- Version: Auto 4WD Euro 6 5dr
- Year: 2017
- Mileage: 56,700 miles
- Body: SUV, 5 doors, 7 seats
- Gearbox: Automatic
- Drive: Four-wheel drive
- Colour: Black
- Emissions standard: Euro 6
About this car
This 2017 Mercedes-Benz GLS has covered 56,700 miles. The dealer is asking £28,500, which is £1,635 below the AskCar estimate of £30,135. To work out the AskCar estimate, we analyse UK dealer adverts for 143 Mercedes-Benz GLS cars across different ages and specifications. It first appeared in our advert records 63 days ago. The latest MOT recorded 124,323 miles, above the advertised mileage. Check this with the dealer. Our latest MOT record expired on 14 August 2025. Check the current position with the dealer. You can find this car at MRG Car Sales in Poole. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 8 November 2026.
Price
Fair price: £1,635 (5%) under the AskCar estimate of £30,135.
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.
Time on sale
This 2017 Mercedes-Benz GLS has been on sale for at least 63 days.
Price history
AskCar first saw this advert on 6 September 2026 at £28,500. 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: the latest record we hold ran out on 14 August 2025; ask the dealer for the current MOT.
It has had 21 MOTs. The latest, on 15 August 2024, passed.
There were no advisories at the latest test.
Mileage at that test: 124,323 miles. The advert says 56,700 miles, fewer than the MOT record, so ask the dealer which is right.
Advertised mileage is about 8,300 miles lower than the median mileage of a 2017 Mercedes-Benz GLS on AskCar.
Browse all Mercedes-Benz GLS cars for sale · 2017 Mercedes-Benz GLS price guide
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Photos
52 photos of this car are on its AskCar page.
As of 8 November 2026, AskCar lists 595,762 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.