2018 Mercedes-Benz GLC 3.0 GLC350d V6 AMG Line Premium Plus

Overview

• Make: Mercedes-Benz
• Model: GLC
• Trim: AMG Line Premium Plus
• Version: 3.0 GLC350d V6 AMG Line Premium Plus G-Tronic 4WD Euro 6 (s/s) 5dr Coupe (254 bhp)
• Year: 2018
• Mileage: 69,000 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 254 bhp
• Gearbox: Automatic (G-Tronic)
• Drive: Four-wheel drive
• Colour: Red
• CO2: 169 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Mercedes-Benz GLC AMG Line Premium Plus is advertised with 69,000 miles, approximately 3,000 below the typical mileage for its age. The dealer is asking £20,499, which is £1,506 below the AskCar estimate of £22,005. To work out the AskCar estimate, we analyse UK dealer adverts for 2,776 Mercedes-Benz GLC cars across different ages and specifications. Since we first spotted the advert 90 days ago, the asking price has dropped by £1,300. Its advertised mileage matches the government's MOT record. The seller is Adam Performance, based in Rossendale. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 9 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,506 (6%) under the AskCar estimate of £22,005.

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 2,776 priced Mercedes-Benz GLC adverts across different ages and specifications, as of 9 November 2026.

A 2018 Mercedes-Benz GLC with the 3.0 diesel engine is typically advertised at £19,800: the median of the 47 for sale on AskCar, as of 9 November 2026.

Time on sale

This 2018 Mercedes-Benz GLC has been on sale for at least 90 days.

Price history

AskCar first saw this advert on 11 August 2026 at £21,799. Its asking price is now £20,499, £1,300 less. The latest price cut was seen on 20 October 2026.

Price changes recorded:

• 11 August 2026: £21,799
• 3 September 2026: £20,999
• 20 October 2026: £20,499

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 9 November 2026: valid until 29 January 2027.

It has had 6 MOTs. The latest, on 19 January 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 68,597 miles, which matches the advertised 69,000 miles.

Advertised mileage is about 3,000 miles lower than the median mileage of a 2018 Mercedes-Benz GLC on AskCar.

Similar cars

20 other 2018 Mercedes-Benz GLC AMG Line Premium Plus 3.0 diesel automatic SUVs are for sale at UK dealers, from £13,999 to £22,250, as of 9 November 2026.

The 3 closest to this car in mileage:

• 2018 Mercedes-Benz GLC AMG Line Premium Plus, 3.0 diesel SUV, grey. Mileage: 72,000 miles. Price: £18,995, £1,504 less than this car. Dealer: Richlee Motor Company Rayleigh in Rayleigh. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2018-be2159a01143
• 2018 Mercedes-Benz GLC AMG Line Premium Plus, 3.0 diesel SUV, white. Mileage: 73,000 miles. Price: £20,999, £500 more than this car. Dealer: Anslow Autos in Burton upon Trent. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2018-70dffa1fd99e
• 2018 Mercedes-Benz GLC AMG Line Premium Plus, 3.0 diesel SUV, black. Mileage: 76,483 miles. Price: £18,791, £1,708 less than this car. Dealer: House of Brage in Oxford. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2018-4c0fdf6d582d

• The nearest: 2018 Mercedes-Benz GLC AMG Line Premium Plus, 3.0 diesel SUV, grey, 10 miles from this car. Mileage: 57,287 miles. Price: £20,990, £491 more than this car. Dealer: Brownroyd Motors in Heywood. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2018-1ca31e671f81