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 (254 bhp)
• Year: 2018
• Mileage: 57,000 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 254 bhp
• Gearbox: Automatic (G-Tronic)
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 159 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 57,000 miles, this 2018 Mercedes-Benz GLC AMG Line Premium Plus has covered about 15,000 fewer miles than other 2018 Mercedes-Benz GLC cars. The dealer is asking £20,499, which is £785 below the AskCar estimate of £21,284. To work out the AskCar estimate, we analyse UK dealer adverts for 2,850 Mercedes-Benz GLC cars across different ages and specifications. We first recorded this car for sale 12 days ago. Its advertised mileage matches the government's MOT record. It is for sale at AB Car Sales in Gunnislake. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £785 (3%) under the AskCar estimate of £21,284.

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 2,850 priced Mercedes-Benz GLC adverts across different ages and specifications, as of 7 November 2026.

A 2018 Mercedes-Benz GLC with the 3.0 diesel engine is typically advertised at £20,000: the median of the 49 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2018 Mercedes-Benz GLC has been on sale for at least 12 days.

Price history

AskCar first saw this advert on 26 October 2026 at £20,499. 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 7 November 2026: valid until 30 March 2027.

It has had 8 MOTs. The latest, on 31 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 55,335 miles, which matches the advertised 57,000 miles.

Advertised mileage is about 15,000 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 7 November 2026.

The 3 closest to this car in mileage:

• 2018 Mercedes-Benz GLC AMG Line Premium Plus, 3.0 diesel SUV, grey. 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
• 2018 Mercedes-Benz GLC AMG Line Premium Plus, 3.0 diesel SUV, white. Mileage: 56,248 miles. Price: £20,988, £489 more than this car. Dealer: Junction 17 Cars (Rugby) in Rugby. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2018-de5333e61b2d
• 2018 Mercedes-Benz GLC AMG Line Premium Plus, 3.0 diesel SUV, black. Mileage: 53,750 miles. Price: £21,499, £1,000 more than this car. Dealer: Approved Cars & Finance Approved Cars in East Peckham. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2018-5b959ab92ef9

• The nearest: 2018 Mercedes-Benz GLC AMG Line Premium Plus, 3.0 diesel SUV, black, 103 miles from this car. Mileage: 88,000 miles. Price: £17,495, £3,004 less than this car. Dealer: A. Lamb Autos @ The Racecourse in Chepstow. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2018-ab9c17d15bb9