2021 BMW X3 2.0 20d MHT M Sport

Price: £23,990. Good value: £2,160 (8%) under the AskCar estimate of £26,150, 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: 43,362 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

This 2021 BMW X3 M Sport is advertised with 43,362 miles, approximately 5,300 below the typical mileage for its age. The dealer is asking £23,990, which is £2,160 below the AskCar estimate of £26,150. 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 68 days ago, and its asking price has since fallen by £1,000. Our records show an MOT expiry date of 28 August 2026, which has passed. Ask the dealer for an update. We checked its advertised mileage against the government's MOT record, and they match. The seller is Williams Bmw Rochdale, based in Rochdale. 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: £2,160 (8%) under the AskCar estimate of £26,150.

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 68 days.

Price history

AskCar first saw this advert on 26 August 2026 at £24,990. Its asking price is now £23,990, £1,000 less. The latest price cut was seen on 21 October 2026.

Price changes recorded:

  • 26 August 2026: £24,990
  • 6 October 2026: £24,495
  • 21 October 2026: £23,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: the latest record we hold ran out on 28 August 2026; ask the dealer for the current MOT.

It has had 2 MOTs. The latest, on 29 August 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 39,833 miles, which matches the advertised 43,362 miles.

Advertised mileage is about 5,300 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, black. Mileage: 43,600 miles. Price: £24,995, £1,005 more than this car. Dealer: Signature Car Specialists in Burnley. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-cf227d6c3721
  • 2021 BMW X3 M Sport, 2.0 diesel SUV, grey. Mileage: 43,086 miles. Price: £24,599, £609 more than this car. Dealer: Fords of Winsford Manchester in Manchester. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-ee483895395b
  • 2021 BMW X3 M Sport, 2.0 diesel SUV, black. Mileage: 43,700 miles. Price: £22,999, £991 less than this car. Dealer: H.P.L. Motors - Oldham (Greater Manchester) in Oldham. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-9693c161440c
  • The nearest: 2021 BMW X3 M Sport, 2.0 diesel SUV, white, 3 miles from this car. Mileage: 27,200 miles. Price: £35,995, £12,005 more than this car. Dealer: A C G Motors in Manchester. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-af61103938b5

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

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Photos

60 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.