2023 Mercedes-Benz GLS prices

There are 16 used 2023 Mercedes-Benz GLS cars for sale from UK dealers on AskCar, as of 11 November 2026. Typical asking price £79,500 (the median: half cost less, half cost more). The cheapest is £50,032. The middle half are priced between £57,500 and £90,000. Median mileage: about 31,000 miles.

Dealers lowered the asking price on more than half of 2023 Mercedes-Benz GLS cars: 10 of the 16 in the 14 days to 11 November 2026.

AskCar lists 145 used Mercedes-Benz GLS across the UK, from 113 dealerships.

As of 11 November 2026, AskCar lists 593,449 cars and vans from 12,847 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

2023 Mercedes-Benz GLS 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, recently reduced and newly advertised. 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. 14 of the 15 cars listed here meet these rules. Page 2 lists every other 2023 Mercedes-Benz GLS 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 139 priced Mercedes-Benz GLS adverts on AskCar as of 11 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2023 Mercedes-Benz GLS.

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 1 car whose advertised mileage is lower than the mileage recorded at its last MOT test.

Best value 2023 Mercedes-Benz GLS: priced furthest below the AskCar estimate

Their asking prices run from £50,032 to £95,995.

Cheapest 2023 Mercedes-Benz GLS: the lowest asking prices

These 10 are priced £50,032 to £85,599. They have covered 23,173 to 52,900 miles.

Lowest-mileage 2023 Mercedes-Benz GLS

These 10 have covered 20,000 to 38,396 miles. Their asking prices run from £55,989 to £99,995.

Recently reduced 2023 Mercedes-Benz GLS: the biggest price reductions in the 14 days to 11 November 2026

The dealer lowered the asking price on each of these 9 in the 14 days to 11 November 2026. Their reductions since AskCar first saw them run from £410 to £16,000.

Newly advertised 2023 Mercedes-Benz GLS: first seen by AskCar in the 7 days to 11 November 2026

These 2 are the most recently advertised. Cars first seen on the same day are listed cheapest first.

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