2020 BMW X3 2.0 20d M Sport

Overview

• Make: BMW
• Model: X3
• Trim: M Sport
• Version: 2.0 20d M Sport Auto 4WD Euro 6 (s/s) 5dr (187 bhp)
• Year: 2020
• Mileage: 43,594 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 144 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW X3 M Sport has covered 43,594 miles, around 8,500 fewer miles than is typical for its age. Its asking price of £22,250 is £1,705 below the AskCar estimate of £23,955. The AskCar estimate uses UK dealer asking prices, including 3,076 BMW X3 adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 28 days ago. Its asking price has since fallen by £760. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at Big Motoring World Blue Bell Hill in Chatham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,705 (7%) under the AskCar estimate of £23,955.

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 3,076 priced BMW X3 adverts across different ages and specifications, as of 5 November 2026.

A 2020 BMW X3 with the 2.0 diesel engine is typically advertised at £22,200: the median of the 100 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2020 BMW X3 has been on sale for at least 28 days.

Price history

AskCar first saw this advert on 8 October 2026 at £23,010. Its asking price is now £22,250, £760 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 8 October 2026: £23,010
• 9 October 2026: £22,920
• 10 October 2026: £22,930
• 11 October 2026: £22,890
• 13 October 2026: £22,870
• 14 October 2026: £22,840
• 16 October 2026: £22,790
• 17 October 2026: £22,760
• 18 October 2026: £22,740
• 19 October 2026: £22,720
• 22 October 2026: £22,680
• 27 October 2026: £22,590
• 31 October 2026: £22,330
• 4 November 2026: £22,250

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 2 October 2027.

It has had 4 MOTs. The latest, on 3 October 2026, passed.

Advisories at the latest test: rear tyre worn close to legal limit/worn on edge both.

Mileage at that test: 43,514 miles, which matches the advertised 43,594 miles.

Advertised mileage is about 8,500 miles lower than the median mileage of a 2020 BMW X3 on AskCar.

Similar cars

69 other 2020 BMW X3 M Sport 2.0 diesel automatic SUVs are for sale at UK dealers, from £16,499 to £28,295, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW X3 M Sport, 2.0 diesel SUV, blue. Mileage: 43,738 miles. Price: £23,999, £1,749 more than this car. Dealer: H.P.L. Motors - Oldham (Greater Manchester) in Oldham. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-5b2ee3f274df
• 2020 BMW X3 M Sport, 2.0 diesel SUV, black. Mileage: 42,775 miles. Price: £22,450, £200 more than this car. Dealer: Big Motoring World Blue Bell Hill in Blue Bell Hill. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-1c2591f1357e
• 2020 BMW X3 M Sport, 2.0 diesel SUV, grey. Mileage: 42,000 miles. Price: £25,995, £3,745 more than this car. Dealer: House Of Motors in Romford. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-ff36889e1306