2021 BMW X3 2.0 20d MHT M Sport

Overview

• Make: BMW
• Model: X3
• Trim: M Sport
• Version: 2.0 20d MHT M Sport Auto 4WD Euro 6 (s/s) 5dr (187 bhp)
• Year: 2021
• Mileage: 52,800 miles
• Fuel: Diesel, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 156 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 52,800 miles, this 2021 BMW X3 M Sport has covered about 4,200 more miles than other 2021 BMW X3 cars. The AskCar estimate for this car is £24,585. It is priced at £25,750, which is £1,165 above that estimate. 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 158 days ago, and its asking price has since fallen by £240. Its advertised mileage matches the government's MOT record. The seller is Reynolds Motor Group Southend-on-sea, based in Southend-on-SEA. 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

Fair price: £1,165 (4%) over the AskCar estimate of £24,585.

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 158 days.

Price history

AskCar first saw this advert on 28 May 2026 at £25,990. Its asking price is now £25,750, £240 less. The latest price cut was seen on 11 October 2026.

Price changes recorded:

• 29 May 2026: £25,990
• 11 October 2026: £25,750

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 18 November 2026.

It has had 3 MOTs. The latest, on 19 November 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 52,048 miles, which matches the advertised 52,800 miles.

Advertised mileage is about 4,200 miles higher 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: 52,680 miles. Price: £23,799, £1,951 less than this car. Dealer: Fords Of Winsford Car Supermarket in Winsford. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-15e343dee05c
• 2021 BMW X3 M Sport, 2.0 diesel SUV, silver. Mileage: 52,480 miles. Price: £26,498, £748 more than this car. Dealer: Arnold Clark Irvine BMW in Irvine. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-4be2a9984b64
• 2021 BMW X3 M Sport, 2.0 diesel SUV, black. Mileage: 53,359 miles. Price: £22,316, £3,434 less than this car. Dealer: Carsa Wolverhampton in Wolverhampton. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-82d3242826b2

• The nearest: 2021 BMW X3 M Sport, 2.0 diesel SUV, white, 3 miles from this car. Mileage: 37,692 miles. Price: £26,990, £1,240 more than this car. Dealer: Group 1 Southend BMW in Southend-on-Sea. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-c620d2f50d3d