2021 Mercedes-Benz GLC 2.0 GLC300d AMG Line Premium

Overview

• Make: Mercedes-Benz
• Model: GLC
• Trim: AMG Line Premium
• Version: 2.0 GLC300d AMG Line Premium G-Tronic+ 4WD Euro 6 (s/s) 5dr (242 bhp)
• Year: 2021
• Mileage: 65,000 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 242 bhp
• Gearbox: Automatic (G-Tronic+)
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 172 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 Mercedes-Benz GLC AMG Line Premium has covered 65,000 miles, around 16,400 more miles than is typical for its age. The AskCar estimate for this car is £23,539. It is priced at £23,995, which is £456 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 2,852 Mercedes-Benz GLC cars across different ages and specifications. We first saw this car advertised 66 days ago. Its asking price has since fallen by £1,500. The latest recorded MOT expiry date is 7 November 2026, which has passed. Confirm its status with the dealer. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Ilex Car Sales, based in Londonderry. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 10 November 2026.

How we estimate prices and check cars

Price

Fair price: £456 (1%) over the AskCar estimate of £23,539.

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 2,852 priced Mercedes-Benz GLC adverts across different ages and specifications, as of 10 November 2026.

A 2021 Mercedes-Benz GLC with the 2.0 diesel engine is typically advertised at £24,800: the median of the 124 for sale on AskCar, as of 10 November 2026.

Time on sale

This 2021 Mercedes-Benz GLC has been on sale for at least 66 days.

Price history

AskCar first saw this advert on 5 September 2026 at £25,495. Its asking price is now £23,995, £1,500 less. The latest price cut was seen on 10 November 2026.

Price changes recorded:

• 5 September 2026: £25,495
• 14 October 2026: £24,995
• 26 October 2026: £24,495
• 10 November 2026: £23,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 10 November 2026: the latest record we hold ran out on 7 November 2026; ask the dealer for the current MOT.

It has had 3 MOTs. The latest, on 7 November 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 60,316 miles, which matches the advertised 65,000 miles.

Advertised mileage is about 16,400 miles higher than the median mileage of a 2021 Mercedes-Benz GLC on AskCar.

Similar cars

30 other 2021 Mercedes-Benz GLC AMG Line Premium 2.0 diesel automatic SUVs are for sale at UK dealers, from £18,990 to £29,990, as of 10 November 2026.

The 3 closest to this car in mileage:

• 2021 Mercedes-Benz GLC AMG Line Premium, 2.0 diesel SUV, grey. Mileage: 65,226 miles. Price: £21,795, £2,200 less than this car. Dealer: Fusco Vehicle Sales in Bangor. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2021-7c10e0cab282
• 2021 Mercedes-Benz GLC AMG Line Premium, 2.0 diesel SUV, silver. Mileage: 64,712 miles. Price: £23,290, £705 less than this car. Dealer: Stratstone Mercedes-Benz of Southend in Thundersley and South Benfleet. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2021-e0ef38864c1d
• 2021 Mercedes-Benz GLC AMG Line Premium, 2.0 diesel SUV, grey. Mileage: 62,000 miles. Price: £22,995, £1,000 less than this car. Dealer: Metro Cars London in Chesham. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2021-d0ab31d81187