2020 Mercedes-Benz GLC 3.0 AMG Line Premium Plus

Overview

• Make: Mercedes-Benz
• Model: GLC
• Trim: AMG Line Premium Plus
• Version: 3.0 AMG Line Premium Plus Auto 4WD Euro 6 5dr (254 bhp)
• Year: 2020
• Mileage: 94,000 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 254 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 Mercedes-Benz GLC AMG Line Premium Plus has covered 94,000 miles, around 40,500 more miles than is typical for its age. The dealer is asking £18,600, which is £3,327 below the AskCar estimate of £21,927. To work out the AskCar estimate, we analyse UK dealer adverts for 2,814 Mercedes-Benz GLC cars across different ages and specifications. Since we first spotted the advert 16 days ago, the asking price has dropped by £170. Its advertised mileage matches the government's MOT record. The seller is Motonet.com, based in Coventry. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Good value: £3,327 (15%) under the AskCar estimate of £21,927.

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 2,814 priced Mercedes-Benz GLC adverts across different ages and specifications, as of 8 November 2026.

A 2020 Mercedes-Benz GLC with the 3.0 diesel engine is typically advertised at £29,100: the median of the 18 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2020 Mercedes-Benz GLC has been on sale for at least 16 days.

Price history

AskCar first saw this advert on 23 October 2026 at £18,770. Its asking price is now £18,600, £170 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

• 23 October 2026: £18,770
• 1 November 2026: £18,600

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 21 October 2027.

It has had 9 MOTs. The latest, on 22 October 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 94,242 miles, which matches the advertised 94,000 miles.

Advertised mileage is about 40,500 miles higher than the median mileage of a 2020 Mercedes-Benz GLC on AskCar.