2020 Mercedes-Benz GLS 2.9 GLS400d AMG Line Premium
Version: 2.9 GLS400d AMG Line Premium G-Tronic 4WD Euro 6 (s/s) 5dr (325 bhp)
Price: £42,499. Good value: £4,667 (9%) under the AskCar estimate of £47,166, 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
- Trim
- AMG Line Premium
- Version
- 2.9 GLS400d AMG Line Premium G-Tronic 4WD Euro 6 (s/s) 5dr (325 bhp)
- Mileage
- 46,064 miles
- Year
- 2020
- Fuel type
- Diesel
- Body type
- SUV
- Engine
- 2.9 L
- Gearbox
- Automatic
- Power
- 325 bhp
- Seats
- 7
- CO2
- 231 g/km
- Colour
- Black
- Doors
- 5
- Driven wheels
- Four Wheel Drive
- Gearbox version
- G-Tronic
- Engine badge
- GLS400d
- Emissions standard
- Euro 6
About this car
This 2020 Mercedes-Benz GLS AMG Line Premium has covered 46,064 miles. Priced at £42,499, it is advertised £4,667 below the AskCar estimate of £47,166. To work out the AskCar estimate, we analyse UK dealer adverts for 132 Mercedes-Benz GLS cars across different ages and specifications. We first recorded this car for sale today. MOT records show an expiry date of 12 July 2027, and the latest recorded mileage is consistent with the advert. The seller is Hendy Kia / Mazda / Honda - Eastleigh, based in Eastleigh.
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 | £42,499 |
Price and mileage comparison
Good value: £4,667 (9%) under the AskCar estimate of £47,166.
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.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT: valid until 12 July 2027. 42,515 miles at the last test.
Other matching cars
1 other 2020 Mercedes-Benz GLS AMG Line Premium automatic diesel cars are for sale at UK dealers from £39,995 to £39,995, as of 31 October 2026.
- 2020 Mercedes-Benz GLS. Price: £39,995. Mileage: 90,567 miles. Dealer: W R Cars in Bradford. AskCar page: https://askcar.co.uk/car/mercedes-benz-gls-2020-8e8fa6a74139
The 1 matching cars have covered 90,567 miles, compared with 46,064 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 · 2020 Mercedes-Benz GLS price guide
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Photos
1 photo of this car is 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.