2021 Mercedes-Benz GLS

2.9 GLS400d AMG Line AMG Line Premium Plus Executive G-Tronic 4WD Euro 6 (s/s) 5dr (Premium Plus, Executive) (325 bhp)

£43,995

Fair price: within 8% of the typical £43,983 for this model, age and mileage, drawing on 130 adverts of this make and model.

Overview

Make
Mercedes-Benz
Model
GLS
Trim
AMG LINE PREMIUM PLUS EXECUTIVE
Version
2.9 GLS400d AMG Line AMG Line Premium Plus Executive G-Tronic 4WD Euro 6 (s/s) 5dr (Premium Plus, Executive) (325 bhp)
Mileage
84,000 miles
Year
2021
Fuel type
Diesel
Body type
SUV
Engine
2.9 L
Gearbox
Automatic
Power
325 bhp
Seats
7
CO2
246 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 2021 Mercedes-Benz GLS AMG Line Premium Plus Executive is advertised with 84,000 miles on the clock. Our estimated market asking price is £43,983. This car is advertised at £43,995, which is £12 above that figure. Our estimate draws on 130 Mercedes-Benz GLS adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 114 days ago, the asking price has dropped by £5,000. It may give you a starting point for a conversation about price. Its MOT is recorded as valid until 6 February 2027. The advertised mileage is consistent with the latest MOT reading. You can find this car at Moy Auto Services in Dungannon.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 3 July 2026, 114 days ago. Advert duration calculated on 25 October 2026. Net asking-price reduction: £5,000 from the first recorded £48,995. 3 price reductions recorded, the latest observed on 6 October 2026.

Recorded asking prices
Date observedAsking price
4 July 2026£48,995
11 July 2026£48,995
15 August 2026£46,995
22 August 2026£45,995
6 October 2026£43,995
23 October 2026£43,995

Price and mileage comparison

Estimated market asking price: £43,983. The asking price is £12 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.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 6 February 2027. 52,139 miles at the last test.

1 other cars with the same year, trim, gearbox and fuel are for sale from £44,995 to £44,995.

Other matching cars
Asking priceMileage
£44,99578,793 miles

These cars have covered 78,793 miles, compared with 84,000 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 · 2021 Mercedes-Benz GLS price guide

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Vehicle photos

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