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: 35,973 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: 156 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X3 M Sport is advertised with 35,973 miles, approximately 11,900 below the typical mileage for its age. The AskCar estimate for this car is £27,223. It is priced at £26,990, which is £233 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 3,099 BMW X3 cars across different ages and specifications. This car was first seen in our listings data 3 days ago. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Group 1 Southend BMW in Leigh-on-SEA. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £233 (under 1%) under the AskCar estimate of £27,223.

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 3,099 priced BMW X3 adverts across different ages and specifications, as of 6 November 2026.

A 2021 BMW X3 with the 2.0 diesel engine is typically advertised at £24,500: the median of the 181 for sale on AskCar, as of 6 November 2026.

Time on sale

AskCar first saw this 2021 BMW X3 advertised 3 days ago. About half of 2021 BMW X3 cars are gone from sale within a month of being advertised: 144 of the 310 first advertised between 13 July 2026 and 3 October 2026.

Price history

AskCar first saw this advert on 3 November 2026 at £26,990. 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 6 November 2026: valid until 11 August 2027.

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

There were no advisories at the latest test.

Mileage at that test: 34,412 miles, which matches the advertised 35,973 miles.

Advertised mileage is about 11,900 miles lower than the median mileage of a 2021 BMW X3 on AskCar.

Similar cars

99 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 6 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X3 M Sport, 2.0 diesel SUV, black. Mileage: 36,129 miles. Price: £26,495, £495 less than this car. Dealer: Hamptons of Surrey in Farnham. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-930dee93d077
• 2021 BMW X3 M Sport, 2.0 diesel SUV, silver. Mileage: 35,005 miles. Price: £24,000, £2,990 less than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-3f2eef1cb253
• 2021 BMW X3 M Sport, 2.0 diesel SUV, black. Mileage: 37,022 miles. Price: £27,899, £909 more than this car. Dealer: Halliwell Jones Southport BMW in Southport. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-368792481842

• The nearest: 2021 BMW X3 M Sport, 2.0 diesel SUV, white, under a mile from this car. Mileage: 37,692 miles. Price: £26,990, the same price as this car. Dealer: Group 1 Southend BMW in Southend-on-Sea. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-c620d2f50d3d