2018 Mercedes-Benz X Class prices

There are 25 used 2018 Mercedes-Benz X Class cars for sale from UK dealers on AskCar, as of 9 November 2026. Typical asking price £23,000 (the median: half cost less, half cost more). The cheapest is £12,995. The middle half are priced between £18,000 and £25,000. Median mileage: about 76,000 miles.

Dealers lowered the asking price on more than one in ten of 2018 Mercedes-Benz X Class cars: 4 of the 25 in the 14 days to 9 November 2026.

2018 Mercedes-Benz X Class prices by engine and mileage

EngineAll mileagesUnder 20,000 miles20,000 to 40,000 miles40,000 to 60,000 miles60,000 miles or more
2.3 diesel£23,000Too few for saleToo few for saleToo few for saleToo few for sale

Only 2 of the 2018 Mercedes-Benz X Class cars for sale have the 3.0 diesel engine, too few to give a typical asking price.

Only 1 of the 2018 Mercedes-Benz X Class cars for sale have the 2.1 diesel engine, too few to give a typical asking price.

Typical asking prices are of 2018 Mercedes-Benz X Class cars for sale on 9 November 2026, and are given only where at least 20 cars with a price are for sale.

2018 Mercedes-Benz X Class against other years

A 2019 Mercedes-Benz X Class car has a typical asking price of £23,500, as of 9 November 2026.

AskCar lists 91 used Mercedes-Benz X Class across the UK, from 74 dealerships.

As of 9 November 2026, AskCar lists 584,619 cars and vans from 12,676 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

2018 Mercedes-Benz X Class cars for sale now, page 1 of 2

This page picks out up to 10 cars in each of these groups: best value, cheapest, lowest mileage and recently reduced. A car in more than one group is listed in full once. The groups pick only from cars with photos and an AskCar estimate, priced at £500 or more and no more than 25% under that estimate. 22 of the 23 cars listed here meet these rules. Page 2 lists every other 2018 Mercedes-Benz X Class car, cheapest first, including the one the groups do not pick from.

The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 85 priced Mercedes-Benz X Class adverts on AskCar as of 9 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2018 Mercedes-Benz X Class.

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. Each car's AskCar page has its full price history and cheaper cars like it.

This list leaves out 2 cars whose advertised mileage is lower than the mileage recorded at their last MOT test.

Best value 2018 Mercedes-Benz X Class: priced furthest below the AskCar estimate

These 10 are priced 0% to 15% under their AskCar estimate. Their asking prices run from £15,594 to £24,990.

Cheapest 2018 Mercedes-Benz X Class: the lowest asking prices

These 10 are priced £12,995 to £22,860. They have covered 62,000 to 160,000 miles.

Lowest-mileage 2018 Mercedes-Benz X Class

These 10 have covered 47,000 to 73,000 miles. Their asking prices run from £15,594 to £27,950.

Recently reduced 2018 Mercedes-Benz X Class: the biggest price reductions in the 14 days to 9 November 2026

The dealer lowered the asking price on each of these 4 in the 14 days to 9 November 2026. Their reductions since AskCar first saw them run from £1,504 to £3,600.

Mercedes-Benz X Class prices by year

Mercedes-Benz X Class by trim

Mercedes-Benz X Class near you

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