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: 49,260 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 is advertised with 49,260 miles, approximately 2,800 below the typical mileage for its age. The dealer is asking £24,250, which is £1,006 above the AskCar estimate of £23,244. To work out the AskCar estimate, we analyse UK dealer adverts for 3,076 BMW X3 cars across different ages and specifications. Since we first spotted the advert 44 days ago, the asking price has dropped by £500. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Merc Autobarn in Hayes. 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: £1,006 (4%) over the AskCar estimate of £23,244.

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 44 days.

Price history

AskCar first saw this advert on 22 September 2026 at £24,750. Its asking price is now £24,250, £500 less. The latest price cut was seen on 18 October 2026.

Price changes recorded:

• 22 September 2026: £24,750
• 29 September 2026: £24,550
• 12 October 2026: £24,400
• 16 October 2026: £24,325
• 18 October 2026: £24,250

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 4 September 2027.

It has had 5 MOTs. The latest, on 2 September 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 48,711 miles, which matches the advertised 49,260 miles.

Advertised mileage is about 2,800 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, grey. Mileage: 49,500 miles. Price: £24,949, £699 more than this car. Dealer: Paragon Cars London in Watford. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-baf92ca1f3f2
• 2020 BMW X3 M Sport, 2.0 diesel SUV, white. Mileage: 48,257 miles. Price: £23,990, £260 less than this car. Dealer: Listers in Boston. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-e62fb6bd4c33
• 2020 BMW X3 M Sport, 2.0 diesel SUV, white. Mileage: 48,250 miles. Price: £23,990, £260 less than this car. Dealer: MINI UK at Listers Boston in Boston. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-4c8d49b899d3