2021 BMW X3 2.0 20d MHT M Sport

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: 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: 160 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X3 M Sport has covered 49,974 miles. Its asking price of £23,500 is £859 below the AskCar estimate of £24,359. The AskCar estimate uses UK dealer asking prices, including 3,034 BMW X3 adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 11 days ago. Its asking price has since fallen by £300. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Marshall BMW Salisbury, based in Salisbury. 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: £859 (3%) under the AskCar estimate of £24,359.

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 11 days.

Price history

AskCar first saw this advert on 24 October 2026 at £23,800. Its asking price is now £23,500, £300 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

• 24 October 2026: £23,800
• 27 October 2026: £23,700
• 30 October 2026: £23,500

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 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 1,100 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 4 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, £420 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, £2,495 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, £490 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, £1,806 less than this car. Dealer: Phoenix Cars in Winchester. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-ee4de66b0be9