2021 BMW X3 2.0 20d MHT M Sport

Overview

• Make: BMW
• Model: X3
• Trim: M Sport
• Version: 2.0 MHT M Sport Auto 4WD Euro 6 5dr (187 bhp)
• Year: 2021
• Mileage: 49,974 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 has covered 49,974 miles, around 2,100 more miles than is typical for its age. The dealer is asking £23,100, which is £2,084 below the AskCar estimate of £25,184. To work out the AskCar estimate, we analyse UK dealer adverts for 3,049 BMW X3 cars across different ages and specifications. The asking price is now £500 lower than when we first recorded the advert 1 day ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is MINI UK at Marshall Salisbury, based in Salisbury. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 12 November 2026.

How we estimate prices and check cars

Price

Good value: £2,084 (8%) under the AskCar estimate of £25,184.

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 3,049 priced BMW X3 adverts across different ages and specifications, as of 12 November 2026.

A 2021 BMW X3 with the 2.0 diesel engine is typically advertised at £24,400: the median of the 177 for sale on AskCar, as of 12 November 2026.

Time on sale

AskCar first saw this 2021 BMW X3 advertised 1 day ago. About half of 2021 BMW X3 cars are gone from sale within a month of being advertised: 154 of the 334 first advertised between 13 July 2026 and 9 October 2026.

Price history

AskCar first saw this advert on 11 November 2026 at £23,600. Its asking price is now £23,100, £500 less. The latest price cut was seen on 12 November 2026.

Price changes recorded:

• 11 November 2026: £23,600
• 12 November 2026: £23,100

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 12 November 2026: valid until 5 February 2027.

It has had 4 MOTs. The latest, on 20 January 2026, passed.

Advisories at the latest test: nearside windscreen wiper blade defective.

Mileage at that test: 37,034 miles, which matches the advertised 49,974 miles.

Advertised mileage is about 2,100 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 12 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X3 M Sport, 2.0 diesel SUV, silver. Mileage: 49,626 miles. Price: £23,920, £820 more than this car. Dealer: Hippo Approved in Blackburn. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-e3da501cc571
• 2021 BMW X3 M Sport, 2.0 diesel SUV, white. Mileage: 51,000 miles. Price: £25,995, £2,895 more than this car. Dealer: Hynes Motors in Newry. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-ebd209ad59ab
• 2021 BMW X3 M Sport, 2.0 diesel SUV, grey. Mileage: 51,714 miles. Price: £23,990, £890 more than this car. Dealer: Stratstone Mercedes-Benz of Wakefield in Wakefield. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-7fd63ae29ae8

• The nearest: 2021 BMW X3 M Sport, 2.0 diesel SUV, black, 21 miles from this car. Mileage: 72,046 miles. Price: £21,694, £1,406 less than this car. Dealer: Phoenix Cars in Winchester. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-ee4de66b0be9