2020 BMW X3 3.0 M40i
Price: £34,570. Fair price: £137 (under 1%) over the AskCar estimate of £34,433, our expected asking price for this car from its model, age, mileage and specification, drawing on 3,099 priced BMW X3 adverts on AskCar as of 6 November 2026.
AskCar lists 3,164 used BMW X3 from 1,233 UK dealerships, as of 6 November 2026.
Overview
- Make: BMW
- Model: X3
- Version: 3.0 M40i Auto 4WD Euro 6 5dr (354 bhp)
- Year: 2020
- Mileage: 32,631 miles
- Fuel: Petrol
- Body: SUV, 5 doors, 5 seats
- Engine: 3.0 litres, 354 bhp
- Gearbox: Automatic
- Drive: Four-wheel drive
- Colour: Black
- CO2: 241 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2020 BMW X3 has covered 32,631 miles, around 19,500 fewer miles than is typical for its age. Priced at £34,570, it is advertised £137 above the AskCar estimate of £34,433. The AskCar estimate uses UK dealer asking prices, including 3,099 BMW X3 adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 29 days ago. Its asking price has since fallen by £930. The government's MOT record matches its advertised mileage. You can find this car at Sytner Harold Wood BMW in Romford. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 6 November 2026.
Price
Fair price: £137 (under 1%) over the AskCar estimate of £34,433.
The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.
It draws on 3,099 priced BMW X3 adverts across different ages and specifications, as of 6 November 2026.
A 2020 BMW X3 with the 3.0 petrol engine is typically advertised at £30,000: the median of the 32 for sale on AskCar, as of 6 November 2026.
Time on sale
This 2020 BMW X3 has been on sale for at least 29 days.
Price history
AskCar first saw this advert on 8 October 2026 at £35,500. Its asking price is now £34,570, £930 less. The latest price cut was seen on 1 November 2026.
Price changes recorded:
- 8 October 2026: £35,500
- 20 October 2026: £34,970
- 1 November 2026: £34,570
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 23 September 2027.
It has had 4 MOTs. The latest, on 24 August 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 30,459 miles, which matches the advertised 32,631 miles.
Advertised mileage is about 19,500 miles lower than the median mileage of a 2020 BMW X3 on AskCar.
Browse all BMW X3 cars for sale · 2020 BMW X3 price guide
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Photos
23 photos of this car are on its AskCar page.
As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.