2021 Mercedes-Benz GLS 4.0

Overview

• Make: Mercedes-Benz
• Model: GLS
• Version: 4.0 Auto 4WD Euro 6 5dr
• Year: 2021
• Mileage: 72,800 miles
• Body: SUV, 5 doors, 7 seats
• Engine: 4.0 litres
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 291 g/km
• Emissions standard: Euro 6

About this car

This 2021 Mercedes-Benz GLS has covered 72,800 miles. The dealer is asking £64,990, which is £8,570 above the AskCar estimate of £56,420. To work out the AskCar estimate, we analyse UK dealer adverts for 139 Mercedes-Benz GLS cars across different ages and specifications. We first recorded this car for sale 7 days ago. Its advertised mileage matches the government's MOT record. The seller is Stratstone Mercedes-Benz of Chelmsford, based in Chelmsford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 11 November 2026.

How we estimate prices and check cars

Price

Above the going rate: £8,570 (15%) over the AskCar estimate of £56,420.

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 139 priced Mercedes-Benz GLS adverts across different ages and specifications, as of 11 November 2026.

Time on sale

This 2021 Mercedes-Benz GLS has been on sale for at least 7 days.

Price history

AskCar first saw this advert on 4 November 2026 at £64,990. 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 11 November 2026: valid until 8 February 2027.

It has had 4 MOTs. The latest, on 9 February 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 68,649 miles, which matches the advertised 72,800 miles.