2023 BMW X3 prices under £30,000

There are 43 used 2023 BMW X3 cars for sale under £30,000 from UK dealers on AskCar, as of 9 November 2026. Typical asking price £28,500 (the median: half cost less, half cost more). The cheapest is £20,771. The middle half are priced between £27,500 and £30,000. Median mileage: about 53,000 miles.

Dealers lowered the asking price on more than half of 2023 BMW X3 cars under £30,000: 32 of the 43 in the 14 days to 9 November 2026.

AskCar lists 3,127 used BMW X3 across the UK, from 1,220 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.

2023 BMW X3 cars for sale now under £30,000, 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. All 42 cars listed here meet these rules. Page 2 lists every other 2023 BMW X3 car, cheapest first.

The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 3,046 priced BMW X3 adverts on AskCar as of 9 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2023 BMW X3.

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 BMW X3: priced furthest below the AskCar estimate

These 10 are priced 8% to 15% under their AskCar estimate. Their asking prices run from £24,500 to £29,950.

Cheapest 2023 BMW X3: the lowest asking prices

These 10 are priced £20,771 to £27,495. They have covered 33,300 to 119,865 miles.

Lowest-mileage 2023 BMW X3

These 10 have covered 17,890 to 35,682 miles. Their asking prices run from £26,990 to £29,995.

Recently reduced 2023 BMW X3: the biggest price reductions in the 14 days to 9 November 2026

The dealer lowered the asking price on each of these 10 in the 14 days to 9 November 2026. Their reductions since AskCar first saw them run from £3,800 to £7,500.

Newly advertised 2023 BMW X3: first seen by AskCar in the 7 days to 9 November 2026

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

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