Used diesel BMW 5 Series for sale under £20,000

There are 1,124 used diesel BMW 5 Series under £20,000 for sale from UK dealers on AskCar, as of 29 October 2026. Typical asking price £12,000 (the median: half cost less, half cost more). The cheapest is £995. AskCar lists 2,849 used BMW 5 Series across the UK, from 1,445 dealerships.

The middle half of the 1,124 cars are priced between £7,700 and £16,000.

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.

329 of the 1,124 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
202121£18,500£17,500 to £19,500
202064£17,800£16,300 to £19,000
2019134£16,800£14,900 to £18,000
2018170£15,000£13,000 to £17,000
2017188£13,900£11,900 to £16,000
2016123£10,300£9,000 to £11,700
201593£8,600£7,000 to £10,300
2014104£7,500£6,400 to £9,300
201389£6,500£5,000 to £7,700
201243£5,800£4,400 to £6,500
201126£5,000£4,300 to £6,000
201024£4,400£3,500 to £5,000

Cars for sale now, page 2 of 12

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 2,702 priced BMW 5 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.

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BMW 5 Series by gearbox, fuel and body

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