Used automatic BMW 3 Series for sale under £20,000

There are 3,135 used automatic BMW 3 Series under £20,000 for sale from UK dealers on AskCar, as of 29 October 2026. Typical asking price £13,000 (the median: half cost less, half cost more). The cheapest is £1,499. AskCar lists 7,078 used BMW 3 Series across the UK, from 2,699 dealerships.

The middle half of the 3,135 cars are priced between £9,000 and £17,000.

As of 29 October 2026, AskCar lists 587,923 cars and vans from 12,992 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

896 of the 3,135 cars had their price reduced in the last 14 days to 29 October 2026.

Median asking price by year

YearFor sale with a priceMedian asking priceMiddle half priced between
202343£18,900£17,600 to £19,700
2022181£17,600£15,500 to £19,000
2021316£17,200£15,500 to £18,900
2020300£17,300£15,500 to £18,700
2019435£16,800£14,800 to £18,500
2018294£13,500£11,200 to £15,900
2017271£12,500£10,000 to £15,000
2016291£11,200£9,000 to £13,900
2015255£10,300£8,500 to £12,300
2014203£8,800£7,000 to £10,000
2013158£8,000£6,300 to £9,000
2012100£6,200£5,000 to £7,800
201162£5,500£4,000 to £7,100
201048£4,800£3,500 to £6,500
200935£5,000£3,500 to £6,000
200824£5,400£4,000 to £6,200
200739£5,000£3,500 to £6,300

Cars for sale now, page 1 of 32

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 6,692 priced BMW 3 Series adverts on AskCar as of 29 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.

BMW 3 Series by gearbox, fuel and body

Automatic BMW 3 Series by price

BMW 3 Series prices by year

BMW 3 Series by price

BMW 3 Series near you

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