2018 Mercedes-Benz GLC 2.1 GLC220d AMG Line
Price: £19,950. Fair price: £217 (1%) under the AskCar estimate of £20,167, our expected asking price for this car from its model, age, mileage and specification, drawing on 2,850 priced Mercedes-Benz GLC adverts on AskCar as of 7 November 2026.
AskCar lists 2,954 used Mercedes-Benz GLC from 1,193 UK dealerships, as of 7 November 2026.
Overview
- Make: Mercedes-Benz
- Model: GLC
- Trim: AMG Line
- Version: 2.1 GLC220d AMG Line G-Tronic 4WD Euro 6 (s/s) 5dr Coupe (168 bhp)
- Year: 2018
- Mileage: 43,052 miles
- Fuel: Diesel
- Body: SUV, 5 doors, 5 seats
- Engine: 2.1 litres, 168 bhp
- Gearbox: Automatic (G-Tronic)
- Drive: Four-wheel drive
- Colour: Grey
- CO2: 143 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2018 Mercedes-Benz GLC AMG Line is advertised with 43,052 miles, approximately 28,900 below the typical mileage for its age. Its asking price of £19,950 is £217 below the AskCar estimate of £20,167. The AskCar estimate draws on 2,850 Mercedes-Benz GLC adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 163 days ago. Its asking price has since fallen by £300. The government's MOT record matches its advertised mileage. It is for sale at Car Planet Watford in Rickmansworth. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 7 November 2026.
Price
Fair price: £217 (1%) under the AskCar estimate of £20,167.
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 163 days.
Price history
AskCar first saw this advert on 28 May 2026 at £20,250. Its asking price is now £19,950, £300 less. The latest price cut was seen on 27 October 2026.
Price changes recorded:
- 24 September 2026: £20,250
- 27 October 2026: £19,950
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 November 2026.
It has had 5 MOTs. The latest, on 1 December 2025, passed.
There were no advisories at the latest test.
Mileage at that test: 39,307 miles, which matches the advertised 43,052 miles.
Advertised mileage is about 28,900 miles lower than the median mileage of a 2018 Mercedes-Benz GLC on AskCar.
Similar cars
60 other 2018 Mercedes-Benz GLC AMG Line 2.1 diesel automatic SUVs are for sale at UK dealers, from £11,500 to £24,899, as of 7 November 2026.
The 3 closest to this car in mileage:
- 2018 Mercedes-Benz GLC AMG Line, 2.1 diesel SUV, grey. Mileage: 40,925 miles. Price: £18,795, £1,155 less than this car. Dealer: Eastham Motors in Eastham. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2018-7fad589e8f8e
- 2018 Mercedes-Benz GLC AMG Line, 2.1 diesel SUV, white. Mileage: 46,116 miles. Price: £18,489, £1,461 less than this car. Dealer: The Car Guys in Dunstable. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2018-9b35c09d1f3b
- 2018 Mercedes-Benz GLC AMG Line, 2.1 diesel SUV, white. Mileage: 36,975 miles. Price: £18,495, £1,455 less than this car. Dealer: Georgesons Car Sales in Liverpool. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2018-547f5cf1a163
- The nearest: 2018 Mercedes-Benz GLC AMG Line, 2.1 diesel SUV, grey, under a mile from this car. Mileage: 75,000 miles. Price: £15,250, £4,700 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/mercedes-benz-glc-2018-0b5c14e6b34c
Browse all Mercedes-Benz GLC cars for sale · 2018 Mercedes-Benz GLC price guide
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Photos
39 photos of this car are on its AskCar page.
As of 7 November 2026, AskCar lists 601,018 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.