Used diesel Mercedes-Benz GLC for sale under £30,000

There are 1,222 used diesel Mercedes-Benz GLC under £30,000 for sale from UK dealers on AskCar, as of 31 October 2026. Typical asking price £18,300 (the median: half cost less, half cost more). The cheapest is £7,995. AskCar lists 2,907 used Mercedes-Benz GLC across the UK, from 1,171 dealerships.

The middle half of the 1,222 cars are priced between £15,500 and £21,500.

As of 31 October 2026, AskCar lists 583,548 cars and vans from 12,716 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

454 of the 1,222 cars had their price reduced in the last 14 days to 31 October 2026.

Median asking price by year

YearFor sale with a priceMedian asking priceMiddle half priced between
202271£26,500£24,000 to £28,000
202173£24,000£21,500 to £26,500
2020163£22,000£20,000 to £24,500
2019255£20,000£18,000 to £22,000
2018267£16,600£15,000 to £18,500
2017236£16,500£14,200 to £18,000
2016128£14,000£12,500 to £16,000
201525£12,500£12,000 to £14,700

Cars for sale now, page 11 of 13

Best value first: the cars priced furthest below their AskCar estimate come first, and those without one come after. The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 2,875 priced Mercedes-Benz GLC adverts on AskCar as of 31 October 2026.

Each car: year, make, model, engine and trim, power, gearbox, fuel, body, doors, colour; mileage; price and its changes; how the price compares with the AskCar estimate; emissions standard and ULEZ compliance where it holds; MOT; dealer and town; AskCar page.

Cheaper cars like each one, with its price history, are on its AskCar page.

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