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: 51,714 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

This 2021 BMW X3 M Sport is advertised with 51,714 miles, approximately 2,800 above the typical mileage for its age. Priced at £23,990, it is advertised £145 below the AskCar estimate of £24,135. The AskCar estimate uses 3,034 UK dealer adverts for the BMW X3, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert today. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Stratstone Mercedes-Benz of Wakefield, based in Wakefield. 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: £145 (under 1%) under the AskCar estimate of £24,135.

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

AskCar first saw this 2021 BMW X3 advertised today. About half of 2021 BMW X3 cars are gone from sale within a month of being advertised: 142 of the 303 first advertised between 13 July 2026 and 1 October 2026.

Price history

AskCar first saw this advert on 4 November 2026 at £23,990. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 17 October 2027.

It has had 4 MOTs. The latest, on 14 October 2026, passed.

Advisories at the latest test: nearside rear child seat fitted not allowing full inspection of adult belt.

Mileage at that test: 51,181 miles, which matches the advertised 51,714 miles.

Advertised mileage is about 2,800 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, black. Mileage: 51,834 miles. Price: £23,995, the same price as this car. Dealer: Grainger Motor Group in Spalding. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-6c8795cb5390
• 2021 BMW X3 M Sport, 2.0 diesel SUV, silver. Mileage: 52,000 miles. Price: £24,295, £305 more than this car. Dealer: Crisps Paramount Garage in Saxmundham. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-9441bb136dec
• 2021 BMW X3 M Sport, 2.0 diesel SUV, white. Mileage: 51,000 miles. Price: £25,995, £2,005 more than this car. Dealer: Hynes Motors in Newry. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-ebd209ad59ab

• The nearest: 2021 BMW X3 M Sport, 2.0 diesel SUV, silver, 2 miles from this car. Mileage: 55,608 miles. Price: £23,950, the same price as this car. Dealer: Sandal BMW Wakefield in Wakefield. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-86f67217be83