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: 63,090 miles
• Fuel: Diesel, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Silver
• CO2: 157 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X3 M Sport has covered 63,090 miles, around 14,500 more miles than is typical for its age. The AskCar estimate for this car is £23,155. It is priced at £21,150, which is £2,005 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 2,992 BMW X3 cars across different ages and specifications. The asking price is now £2,700 lower than when we first recorded the advert 105 days ago. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Car Planet Watford in Rickmansworth. 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

Good value: £2,005 (8%) under the AskCar estimate of £23,155.

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 105 days.

Price history

AskCar first saw this advert on 20 July 2026 at £23,850. Its asking price is now £21,150, £2,700 less. The latest price cut was seen on 21 October 2026.

Price changes recorded:

• 20 July 2026: £23,850
• 8 August 2026: £23,800
• 15 August 2026: £23,550
• 25 August 2026: £23,250
• 1 September 2026: £23,000
• 8 September 2026: £22,700
• 15 September 2026: £22,550
• 22 September 2026: £22,250
• 28 September 2026: £21,950
• 4 October 2026: £21,650
• 9 October 2026: £21,550
• 16 October 2026: £21,250
• 21 October 2026: £21,150

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 25 February 2027.

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

Advisories at the latest test: offside front play in steering rack inner joint(s) slight.

Mileage at that test: 59,399 miles, which matches the advertised 63,090 miles.

Advertised mileage is about 14,500 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, blue. Mileage: 62,847 miles. Price: £23,227, £2,077 more than this car. Dealer: Carsa Wolverhampton in Wolverhampton. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-b8c21606fbf1
• 2021 BMW X3 M Sport, 2.0 diesel SUV, black. Mileage: 63,570 miles. Price: £23,000, £1,850 more than this car. Dealer: Sytner Swansea MINI in Swansea. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-70c34898ff55
• 2021 BMW X3 M Sport, 2.0 diesel SUV, black. Mileage: 62,476 miles. Price: £24,990, £3,840 more than this car. Dealer: Fermanagh Auto Sales in Enniskillen. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-3de60f355caf

• The nearest: 2021 BMW X3 M Sport, 2.0 diesel SUV, blue, under a mile from this car. Mileage: 85,245 miles. Price: £18,950, £2,200 less than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-4a99aa1f934e