2021 BMW X3 2.0 20d MHT M Sport

Overview

• Make: BMW
• Model: X3
• Trim: M Sport
• Version: 2.0 20d MHT M Sport Auto 4WD Euro 6 (s/s) 5dr (187 bhp)
• Year: 2021
• Mileage: 70,616 miles
• Fuel: Diesel, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: White
• CO2: 157 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X3 M Sport is advertised with 70,616 miles, approximately 21,700 above the typical mileage for its age. The dealer is asking £22,050, which is £148 above the AskCar estimate of £21,902. To work out the AskCar estimate, we analyse UK dealer adverts for 3,034 BMW X3 cars across different ages and specifications. We first recorded this advert 116 days ago, and its asking price has since fallen by £3,450. Its advertised mileage matches the government's MOT record. The seller is Car Planet Watford, based in Rickmansworth. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £148 (under 1%) over the AskCar estimate of £21,902.

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 3,034 priced BMW X3 adverts across different ages and specifications, as of 4 November 2026.

A 2021 BMW X3 with the 2.0 diesel engine is typically advertised at £24,500: the median of the 174 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2021 BMW X3 has been on sale for at least 116 days.

Price history

AskCar first saw this advert on 11 July 2026 at £25,500. Its asking price is now £22,050, £3,450 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

• 11 July 2026: £25,500
• 25 July 2026: £25,300
• 31 July 2026: £25,200
• 6 August 2026: £25,100
• 13 August 2026: £24,800
• 19 August 2026: £24,550
• 25 August 2026: £24,250
• 1 September 2026: £24,100
• 10 September 2026: £24,050
• 16 September 2026: £23,850
• 22 September 2026: £23,550
• 28 September 2026: £23,250
• 4 October 2026: £22,950
• 9 October 2026: £22,650
• 16 October 2026: £22,350
• 1 November 2026: £22,050

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 9 July 2027.

It has had 4 MOTs. The latest, on 10 July 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 70,612 miles, which matches the advertised 70,616 miles.

Advertised mileage is about 21,700 miles higher than the median mileage of a 2021 BMW X3 on AskCar.

Similar cars

95 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 4 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X3 M Sport, 2.0 diesel SUV, silver. Mileage: 70,308 miles. Price: £22,400, £350 more than this car. Dealer: Marshall BMW Grimsby in Grimsby. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-b7db4556555b
• 2021 BMW X3 M Sport, 2.0 diesel SUV, black. Mileage: 72,046 miles. Price: £21,694, £356 less than this car. Dealer: Phoenix Cars in Winchester. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-ee4de66b0be9
• 2021 BMW X3 M Sport, 2.0 diesel SUV, black. Mileage: 68,705 miles. Price: £23,460, £1,410 more than this car. Dealer: Berry Croydon BMW in Croydon. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-7e2cbbe1f328

• The nearest: 2021 BMW X3 M Sport, 2.0 diesel SUV, silver, under a mile from this car. Mileage: 63,090 miles. Price: £21,150, £900 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-23d0903df2a0