2018 Mercedes-Benz GLS

3.0 Grand Edition Auto 4WD Euro 6 5dr (254 bhp)

£31,995

Fair price: within 8% of the typical £31,850 for this model, age and mileage, drawing on 130 adverts of this make and model.

Overview

Make: Mercedes-Benz
Model: GLS
Trim: GRAND EDITION
Version: 3.0 Grand Edition Auto 4WD Euro 6 5dr (254 bhp)
Mileage: 79,000 miles
Year: 2018
Fuel type: Diesel
Body type: SUV
Engine: 3.0 L
Gearbox: Automatic
Power: 254 bhp
Seats: 7
CO2: 203 g/km
Colour: Grey
Doors: 5
Driven wheels: Four Wheel Drive
Emissions standard: Euro 6

About this car

With 79,000 miles on the clock, this 2018 Mercedes-Benz GLS Grand Edition has done roughly 13,400 more miles than a typical 2018 Mercedes-Benz GLS. At £31,995, it is advertised £145 above our estimated market asking price of £31,850. We use UK dealer asking prices, including 130 Mercedes-Benz GLS listings, and account for the car’s age, mileage and specification. Since we first spotted the advert 17 days ago, the asking price has dropped by £500. Its recorded MOT is valid until 11 March 2027, and its advertised mileage is consistent with the latest MOT reading. It is advertised by LK Cars in Oldham.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 9 October 2026, 17 days ago. Advert duration calculated on 26 October 2026. Net asking-price reduction: £500 from the first recorded £32,495. 1 price reduction recorded, the latest observed on 16 October 2026.

Recorded asking prices
Date observed	Asking price
9 October 2026	£32,495
16 October 2026	£31,995
23 October 2026	£31,995

Price and mileage comparison

Estimated market asking price: £31,850. The asking price is £145 above this estimate.

The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.

The pricing calculation includes 130 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 13,400 miles higher than typical for a 2018 Mercedes-Benz GLS.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 11 March 2027. 77,067 miles at the last test.

1 other cars with the same year, trim, gearbox and fuel are for sale from £26,990 to £26,990.

Other matching cars
Asking price	Mileage
£26,990	110,000 miles

These cars have covered 110,000 miles, compared with 79,000 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.

Browse all Mercedes-Benz GLS cars for sale · 2018 Mercedes-Benz GLS price guide

Vehicle photos

AskCar lists 589,789 cars from 13,079 UK dealer locations, read and updated daily from dealer websites. More than any other UK site. No dealer pays to be listed.