2018 Mercedes-Benz GLS

3.0 350d AMG Line 9G-Tronic 4WD Euro 6 5dr (254 bhp)

£31,990

Above the going rate: £3,160 over the typical £28,830 for this model, age and mileage, drawing on 130 adverts of this make and model.

Overview

Make: Mercedes-Benz
Model: GLS
Trim: AMG LINE
Version: 3.0 350d AMG Line 9G-Tronic 4WD Euro 6 5dr (254 bhp)
Mileage: 73,083 miles
Year: 2018
Fuel type: Diesel
Body type: SUV
Engine: 3.0 L
Gearbox: Automatic
Power: 254 bhp
Seats: 7
CO2: 210 g/km
Colour: Silver
Doors: 5
Driven wheels: Four Wheel Drive
Gearbox version: 9G-Tronic
Engine badge: AMG Line
Emissions standard: Euro 6

About this car

This 2018 Mercedes-Benz GLS AMG Line has covered 73,083 miles, around 7,500 more than typical for its age. The dealer is asking £31,990, which is £3,160 above our market estimate of £28,830. To estimate its market asking price, we analyse UK dealer adverts for 130 Mercedes-Benz GLS cars across different ages and specifications. It first appeared in our advert records 7 days ago. MOT records show an expiry date of 19 September 2027, and the latest recorded mileage is consistent with the advert. The seller is Lookers Mercedes-Benz of Canterbury, based in Canterbury.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 17 October 2026, 7 days ago. Advert duration calculated on 24 October 2026.

Recorded asking prices
Date observed	Asking price
17 October 2026	£31,990
23 October 2026	£31,990

Price and mileage comparison

Estimated market asking price: £28,830. The asking price is £3,160 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 7,500 miles higher than typical for a 2018 Mercedes-Benz GLS.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 19 September 2027. 71,281 miles at the last test.

11 other cars with the same year, trim, gearbox and fuel are for sale from £23,500 to £37,500.

Other matching cars (up to five, cheapest first)
Asking price	Mileage
£23,500	108,190 miles
£26,100	85,531 miles
£28,495	59,000 miles
£28,989	68,750 miles
£29,499	47,220 miles

These cars have covered 29,000–108,190 miles, compared with 73,083 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

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Vehicle photos

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