2021 BMW X3 2.0 20d MHT M Sport

Price: £27,995. Fair price: £1,348 (5%) over the AskCar estimate of £26,647, our expected asking price for this car from its model, age, mileage and specification, drawing on 2,992 priced BMW X3 adverts on AskCar as of 2 November 2026.

AskCar lists 3,072 used BMW X3 from 1,209 UK dealerships, as of 2 November 2026.

Overview

  • Make: BMW
  • Model: X3
  • Trim: M Sport
  • Version: 2.0 MHT M Sport Auto 4WD Euro 6 5dr (187 bhp)
  • Year: 2021
  • Mileage: 39,805 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

With 39,805 miles on the clock, this 2021 BMW X3 M Sport has done roughly 8,800 fewer miles than a typical 2021 BMW X3. The AskCar estimate for this car is £26,647. It is priced at £27,995, which is £1,348 above that estimate. The AskCar estimate uses UK dealer asking prices, including 2,992 BMW X3 adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 55 days ago. Its asking price has since fallen by £1,000. The government's MOT record matches its advertised mileage. You can find this car at Comiskey Motors in Newry. 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: £1,348 (5%) over the AskCar estimate of £26,647.

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 55 days.

Price history

AskCar first saw this advert on 8 September 2026 at £28,995. Its asking price is now £27,995, £1,000 less. The latest price cut was seen on 21 October 2026.

Price changes recorded:

  • 8 September 2026: £28,995
  • 21 October 2026: £27,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 29 June 2027.

It failed its MOT on 3 June 2026 (engine MIL inoperative or indicates a malfunction) and passed 7 days later, on 10 June 2026.

There were no advisories at the latest test.

Mileage at that test: 38,356 miles, which matches the advertised 39,805 miles.

Advertised mileage is about 8,800 miles lower 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: 39,500 miles. Price: £24,499, £3,496 less than this car. Dealer: Fords Of Winsford Car Supermarket in Winsford. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-bc0574d64edc
  • 2021 BMW X3 M Sport, 2.0 diesel SUV, grey. Mileage: 39,287 miles. Price: £26,750, £1,245 less than this car. Dealer: North Oxford Bmw in Oxford. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-026c7d138989
  • 2021 BMW X3 M Sport, 2.0 diesel SUV, blue. Mileage: 41,103 miles. Price: £25,950, £2,045 less than this car. Dealer: Heartys of Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-589d190699a2
  • The nearest: 2021 BMW X3 M Sport, 2.0 diesel SUV, blue, under a mile from this car. Mileage: 85,000 miles. Price: £23,995, £4,000 less than this car. Dealer: Comiskey Motors in Newry. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-96937dd005af

Browse all BMW X3 cars for sale · 2021 BMW X3 price guide

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Photos

52 photos of this car are on its AskCar page.

As of 2 November 2026, AskCar lists 586,270 cars and vans from 12,920 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.