2018 Mercedes-Benz GLC 2.1 AMG Line Premium

Overview

• Make: Mercedes-Benz
• Model: GLC
• Trim: AMG Line Premium
• Version: 2.1 AMG Line Premium G-Tronic 4WD Euro 6 (s/s) 5dr
• Year: 2018
• Mileage: 36,579 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 2.1 litres
• Gearbox: Automatic (G-Tronic)
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 Mercedes-Benz GLC AMG Line Premium is advertised with 36,579 miles, approximately 35,400 below the typical mileage for its age. The dealer is asking £19,700, which is £563 below the AskCar estimate of £20,263. To work out the AskCar estimate, we analyse UK dealer adverts for 2,850 Mercedes-Benz GLC cars across different ages and specifications. Since we first spotted the advert 84 days ago, the asking price has dropped by £1,200. Its advertised mileage matches the government's MOT record. The seller is Sytner Select Cardiff, based in Cardiff. 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: £563 (2%) under the AskCar estimate of £20,263.

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 2.1 diesel engine is typically advertised at £16,500: the median of the 239 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2018 Mercedes-Benz GLC has been on sale for at least 84 days.

Price history

AskCar first saw this advert on 15 August 2026 at £20,900. Its asking price is now £19,700, £1,200 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 15 August 2026: £20,900
• 24 September 2026: £20,400
• 8 October 2026: £20,150
• 18 October 2026: £19,900
• 28 October 2026: £19,700

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 28 June 2027.

It has had 6 MOTs. The latest, on 15 June 2026, passed.

Advisories at the latest test: rear brake disc worn, pitted or scored, but not seriously weakened both.

Mileage at that test: 36,057 miles, which matches the advertised 36,579 miles.

Advertised mileage is about 35,400 miles lower than the median mileage of a 2018 Mercedes-Benz GLC on AskCar.

Similar cars

96 other 2018 Mercedes-Benz GLC AMG Line Premium 2.1 diesel automatic SUVs are for sale at UK dealers, from £11,995 to £23,995, as of 7 November 2026.

The 3 closest to this car in mileage:

• 2018 Mercedes-Benz GLC AMG Line Premium, 2.1 diesel SUV, red. Mileage: 39,000 miles. Price: £19,490, £210 less than this car. Dealer: Kempshott Cars in Basingstoke. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2018-a448a50fa7ea
• 2018 Mercedes-Benz GLC AMG Line Premium, 2.1 diesel SUV, grey. Mileage: 39,752 miles. Price: £20,100, £400 more than this car. Dealer: Sytner Select Bristol in Bristol. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2018-0bc83f262734
• 2018 Mercedes-Benz GLC AMG Line Premium, 2.1 diesel SUV, grey. Mileage: 40,224 miles. Price: £19,990, £290 more than this car. Dealer: Spa Motors Mid Wales in Brecon. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2018-41163a2b8d17