2018 Mercedes-Benz GLC SE Executive

Price: £12,345. Good value: £1,498 (10%) under the AskCar estimate of £13,843, 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: SE Executive
  • Version: SE Executive 4WD Euro 6 5dr (168 bhp)
  • Year: 2018
  • Mileage: 85,626 miles
  • Fuel: Diesel
  • Body: SUV, 5 doors, 5 seats
  • Engine: 168 bhp
  • Drive: Four-wheel drive
  • Colour: Silver
  • CO2: 129 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

With 85,626 miles on the clock, this 2018 Mercedes-Benz GLC SE Executive has done roughly 13,600 more miles than a typical 2018 Mercedes-Benz GLC. Its asking price of £12,345 is £1,498 below the AskCar estimate of £13,843. To work out the AskCar estimate, we analyse UK dealer adverts for 2,850 Mercedes-Benz GLC cars across different ages and specifications. The asking price is now £765 lower than when we first recorded the advert 79 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Rallysport Automotive, based in Colchester. 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

Good value: £1,498 (10%) under the AskCar estimate of £13,843.

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.

Time on sale

This 2018 Mercedes-Benz GLC has been on sale for at least 79 days.

Price history

AskCar first saw this advert on 20 August 2026 at £13,110. Its asking price is now £12,345, £765 less. The latest price cut was seen on 7 November 2026.

Price changes recorded:

  • 20 August 2026: £13,110
  • 21 August 2026: £12,895
  • 4 September 2026: £12,875
  • 16 September 2026: £12,845
  • 10 October 2026: £12,725
  • 15 October 2026: £12,645
  • 20 October 2026: £12,595
  • 22 October 2026: £12,545
  • 25 October 2026: £12,495
  • 4 November 2026: £12,445
  • 7 November 2026: £12,345

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 17 August 2027.

It has had 6 MOTs. The latest, on 18 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 85,636 miles, which matches the advertised 85,626 miles.

Advertised mileage is about 13,600 miles higher than the median mileage of a 2018 Mercedes-Benz GLC on AskCar.

Browse all Mercedes-Benz GLC cars for sale · 2018 Mercedes-Benz GLC price guide

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Photos

71 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.