2021 BMW X3 2.0 20d MHT M Sport

Overview

• Make: BMW
• Model: X3
• Trim: M Sport
• Version: 2.0 MHT M Sport Auto 4WD Euro 6 5dr (187 bhp)
• Year: 2021
• Mileage: 63,570 miles
• Fuel: Diesel, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 157 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2021 BMW X3 M Sport is 63,570 miles. Its asking price of £23,000 is £348 below the AskCar estimate of £23,348. The AskCar estimate uses 2,992 UK dealer adverts for the BMW X3, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this car for sale 32 days ago. The last MOT shows 64,391 miles, more than the advert. This is worth checking with the dealer. Its MOT is recorded as valid until 13 September 2027. The seller is Sytner Swansea MINI, based in Swansea. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £348 (1%) under the AskCar estimate of £23,348.

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 2,992 priced BMW X3 adverts across different ages and specifications, as of 2 November 2026.

A 2021 BMW X3 with the 2.0 diesel engine is typically advertised at £24,600: the median of the 174 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2021 BMW X3 has been on sale for at least 32 days.

Price history

AskCar first saw this advert on 1 October 2026 at £23,000. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 13 September 2027.

It has had 5 MOTs. The latest, on 14 September 2026, passed.

Advisories at the latest test: offside front windscreen wiper blade defective.

Mileage at that test: 64,391 miles. The advert says 63,570 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 15,000 miles higher than the median mileage of a 2021 BMW X3 on AskCar.

Similar cars

97 other 2021 BMW X3 M Sport 2.0 diesel automatic SUVs are for sale at UK dealers, from £16,295 to £35,995, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X3 M Sport, 2.0 diesel SUV, white. Mileage: 63,734 miles. Price: £22,990, the same price as this car. Dealer: Halliwell Jones Warrington BMW in Warrington. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-0d9cc969a947
• 2021 BMW X3 M Sport, 2.0 diesel SUV, white. Mileage: 63,764 miles. Price: £23,890, £890 more than this car. Dealer: Williams Bmw Manchester in Manchester. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-bb5d2a99c17b
• 2021 BMW X3 M Sport, 2.0 diesel SUV, silver. Mileage: 63,090 miles. Price: £21,150, £1,850 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-23d0903df2a0

• The nearest: 2021 BMW X3 M Sport, 2.0 diesel SUV, black, 35 miles from this car. Mileage: 57,671 miles. Price: £22,590, £410 less than this car. Dealer: Days Motorpark Cardiff in Cardiff. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-852840841a2f