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: 23,009 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: 160 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 23,009 miles on the clock, this 2021 BMW X3 M Sport has done roughly 25,000 fewer miles than a typical 2021 BMW X3. The AskCar estimate for this car is £27,740. It is priced at £25,998, which is £1,742 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 3,033 BMW X3 cars across different ages and specifications. This car was first seen in our listings data 1 day ago. Its advertised mileage matches the government's MOT record. The seller is Arnold Clark Mercedes-Benz Of Perth, based in Perth. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,742 (6%) under the AskCar estimate of £27,740.

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 3,033 priced BMW X3 adverts across different ages and specifications, as of 8 November 2026.

A 2021 BMW X3 with the 2.0 diesel engine is typically advertised at £24,500: the median of the 173 for sale on AskCar, as of 8 November 2026.

Time on sale

AskCar first saw this 2021 BMW X3 advertised 1 day ago. About half of 2021 BMW X3 cars are gone from sale within a month of being advertised: 145 of the 311 first advertised between 13 July 2026 and 5 October 2026.

Price history

AskCar first saw this advert on 7 November 2026 at £25,998. 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 8 November 2026: valid until 6 August 2027.

It failed its MOT on 3 August 2026 (nearside front windscreen wiper does not clear the windscreen effectively; offside front windscreen wiper does not clear the windscreen effectively) and passed later the same day.

Advisories at the latest test: nearside front tyre slightly damaged/cracking or perishing; offside front tyre slightly damaged/cracking or perishing; nearside rear tyre slightly damaged/cracking or perishing; and 1 more.

Mileage at that test: 21,116 miles, which matches the advertised 23,009 miles.

Advertised mileage is about 25,000 miles lower than the median mileage of a 2021 BMW X3 on AskCar.

Similar cars

98 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 8 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X3 M Sport, 2.0 diesel SUV, white. Mileage: 24,111 miles. Price: £27,992, £1,994 more than this car. Dealer: Bowker Motor Group in Preston. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-d1870939f980
• 2021 BMW X3 M Sport, 2.0 diesel SUV, black. Mileage: 21,518 miles. Price: £28,750, £2,752 more than this car. Dealer: Sytner Nottingham BMW in Nottingham. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-66150e4b2ac7
• 2021 BMW X3 M Sport, 2.0 diesel SUV. Mileage: 20,000 miles. Price: £26,500, £502 more than this car. Dealer: Pristine Car Sales in Harrow. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-63629b3d5b6a

• The nearest: 2021 BMW X3 M Sport, 2.0 diesel SUV, black, 28 miles from this car. Mileage: 37,439 miles. Price: £27,795, £1,797 more than this car. Dealer: Park's Motor Group Douglas Park BMW Stirling in Stirling. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-bd48d8f2723b