2021 BMW X3 2.0 20d MHT M Sport

Price: £21,975. Fair price: £29 (under 1%) over the AskCar estimate of £21,946, our expected asking price for this car from its model, age, mileage and specification, drawing on 3,034 priced BMW X3 adverts on AskCar as of 4 November 2026.

AskCar lists 3,115 used BMW X3 from 1,212 UK dealerships, as of 4 November 2026.

Overview

  • Make: BMW
  • Model: X3
  • Trim: M Sport
  • Version: 2.0 xDrive20d MHT M Sport Auto 4WD Euro 6 5dr Step (187 bhp)
  • Year: 2021
  • Mileage: 67,215 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: 160 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

With 67,215 miles on the clock, this 2021 BMW X3 M Sport has done roughly 18,300 more miles than a typical 2021 BMW X3. The AskCar estimate for this car is £21,946. It is priced at £21,975, which is £29 above that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 3,034 BMW X3 cars across different ages and specifications. The asking price is now £500 lower than when we first recorded the advert 40 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Sytner Group Geely Sunderland, based in Sunderland. 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: £29 (under 1%) over the AskCar estimate of £21,946.

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 40 days.

Price history

AskCar first saw this advert on 25 September 2026 at £22,475. Its asking price is now £21,975, £500 less. The latest price cut was seen on 1 November 2026.

Price changes recorded:

  • 25 September 2026: £22,475
  • 13 October 2026: £22,175
  • 1 November 2026: £21,975

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 31 August 2027.

It has had 3 MOTs. The latest, on 24 August 2026, passed.

Advisories at the latest test: front registration plate deteriorated but not likely to be misread.

Mileage at that test: 66,509 miles, which matches the advertised 67,215 miles.

Advertised mileage is about 18,300 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, grey. Mileage: 67,280 miles. Price: £21,599, £376 less than this car. Dealer: Fords Of Winsford Car Supermarket in Winsford. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-f2ca428d86e9
  • 2021 BMW X3 M Sport, 2.0 diesel SUV, black. Mileage: 66,855 miles. Price: £20,495, £1,480 less than this car. Dealer: D. M. Keith in Grimsby. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-73c831236abe
  • 2021 BMW X3 M Sport, 2.0 diesel SUV, grey. Mileage: 66,536 miles. Price: £23,450, £1,475 more than this car. Dealer: Sytner Worcester BMW in Worcester. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-b98851d5fa1c
  • The nearest: 2021 BMW X3 M Sport, 2.0 diesel SUV, black, 8 miles from this car. Mileage: 60,722 miles. Price: £21,995, the same price as this car. Dealer: Belle Vue Vehicles in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-6a6e2a828e4f

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

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Photos

23 photos of this car are on its AskCar page.

As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.