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

There are 1,208 used diesel Mercedes-Benz GLC under £30,000 for sale from UK dealers on AskCar, as of 30 October 2026. Typical asking price £18,200 (the median: half cost less, half cost more). The cheapest is £7,995. AskCar lists 2,853 used Mercedes-Benz GLC across the UK, from 1,159 dealerships.

The middle half of the 1,208 cars are priced between £15,500 and £21,500.

As of 30 October 2026, AskCar lists 580,490 cars and vans from 12,695 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

468 of the 1,208 cars had their price reduced in the last 14 days to 30 October 2026.

Median asking price by year

YearFor sale with a priceMedian asking priceMiddle half priced between
202269£26,000£24,000 to £27,500
202171£24,500£22,000 to £26,500
2020161£22,000£20,000 to £24,500
2019248£20,000£18,000 to £22,000
2018267£16,500£15,000 to £18,500
2017234£16,500£14,300 to £18,000
2016129£14,000£12,500 to £16,000
201525£12,500£12,000 to £14,700

Cars for sale now, page 2 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 2,819 priced Mercedes-Benz GLC adverts on AskCar as of 30 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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