2018 Mercedes-Benz GLS

Overview

Make

Mercedes-Benz

Model

GLS

Trim

AMG LINE

Version

3.0 AMG Line Auto 4WD Euro 6 5dr (254 bhp)

Mileage

55,000 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

This 2018 Mercedes-Benz GLS AMG Line is advertised with 55,000 miles on the clock. The dealer is asking £30,990, which is £330 above our market estimate of £30,660. Our estimate draws on 123 Mercedes-Benz GLS adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 92 days ago, and its asking price has since fallen by £3,705. The last MOT shows 55,593 miles, more than the advert. This is worth checking with the dealer. The latest recorded MOT expires on 17 November 2026. You can find this car at S & R Motors in Swindon.

Stock data from 20 October 2026.

How we estimate prices and check cars

Price and mileage comparison

Estimated market asking price: £30,660. The asking price is £330 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 123 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 10,600 miles lower than typical for a 2018 Mercedes-Benz GLS.

Mileage concern: the advertised mileage is below the last MOT reading; ask the dealer to explain.