2021 BMW X3 2.0 20d MHT M Sport

Price: £26,990. Good value: £2,374 (8%) under the AskCar estimate of £29,364, 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 20d MHT M Sport Auto 4WD Euro 6 (s/s) 5dr (187 bhp)
  • Year: 2021
  • Mileage: 16,605 miles
  • Fuel: Diesel, mild hybrid
  • Body: SUV, 5 doors, 5 seats
  • Engine: 2.0 litres, 187 bhp
  • Gearbox: Automatic
  • Drive: Four-wheel drive
  • Colour: Grey
  • CO2: 157 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

With 16,605 miles on the clock, this 2021 BMW X3 M Sport has done roughly 32,000 fewer miles than a typical 2021 BMW X3. Its asking price of £26,990 is £2,374 below the AskCar estimate of £29,364. To work out the AskCar estimate, we analyse UK dealer adverts for 2,992 BMW X3 cars across different ages and specifications. We first recorded this advert 82 days ago, and its asking price has since fallen by £2,000. The government's MOT record matches its advertised mileage. You can find this car at Daniel Alexander Motor Group in North Ferriby. 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

Good value: £2,374 (8%) under the AskCar estimate of £29,364.

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 82 days.

Price history

AskCar first saw this advert on 12 August 2026 at £28,990. Its asking price is now £26,990, £2,000 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

  • 12 August 2026: £28,990
  • 4 September 2026: £27,990
  • 16 September 2026: £27,890
  • 25 September 2026: £27,790
  • 14 October 2026: £27,490
  • 18 October 2026: £27,390
  • 23 October 2026: £27,290
  • 30 October 2026: £26,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 4 January 2027.

It has had 3 MOTs. The latest, on 5 January 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 14,497 miles, which matches the advertised 16,605 miles.

Advertised mileage is about 32,000 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: 18,707 miles. Price: £25,730, £1,260 less than this car. Dealer: Big Motoring World Norwich in Norwich. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-e436a69df13e
  • 2021 BMW X3 M Sport, 2.0 diesel SUV. Mileage: 20,000 miles. Price: £26,500, £490 less than this car. Dealer: Pristine Car Sales in Harrow. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-63629b3d5b6a
  • 2021 BMW X3 M Sport, 2.0 diesel SUV, silver. Mileage: 12,230 miles. Price: £27,295, £305 more than this car. Dealer: Snows BMW Portsmouth in Portsmouth. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-bfa73053770e
  • The nearest: 2021 BMW X3 M Sport, 2.0 diesel SUV, black, 10 miles from this car. Mileage: 42,561 miles. Price: £24,700, £2,290 less than this car. Dealer: Marshall BMW Scunthorpe in Scunthorpe. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-84e1b2e43765

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

More like this

Photos

31 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.