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: 42,000 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: 157 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X3 M Sport has covered 42,000 miles, around 6,600 fewer miles than is typical for its age. The AskCar estimate for this car is £26,033. It is priced at £24,490, which is £1,543 below that estimate. The AskCar estimate draws on 2,992 BMW X3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data 9 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is The Car Outlet, based in Dartford. 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: £1,543 (5%) under the AskCar estimate of £26,033.

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 9 days.

Price history

AskCar first saw this advert on 24 October 2026 at £24,490. 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 2 November 2026: valid until 25 August 2027.

It failed its MOT on 10 August 2026 (engine MIL inoperative or indicates a malfunction; windscreen washer provides insufficient washer liquid) and passed later the same day.

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

Mileage at that test: 42,336 miles, which matches the advertised 42,000 miles.

Advertised mileage is about 6,600 miles lower 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, white. Mileage: 42,468 miles. Price: £24,999, £509 more than this car. Dealer: Stratstone Bmw Leeds in Leeds. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-1bef7e39c3f0
• 2021 BMW X3 M Sport, 2.0 diesel SUV, black. Mileage: 42,561 miles. Price: £24,700, £210 more than this car. Dealer: Marshall BMW Scunthorpe in Scunthorpe. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-84e1b2e43765
• 2021 BMW X3 M Sport, 2.0 diesel SUV, blue. Mileage: 41,103 miles. Price: £25,950, £1,460 more than this car. Dealer: Heartys of Peterborough in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-589d190699a2

• The nearest: 2021 BMW X3 M Sport, 2.0 diesel SUV, black, 13 miles from this car. Mileage: 33,810 miles. Price: £25,180, £690 more than this car. Dealer: Big Motoring World Blue Bell Hill in Blue Bell Hill. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-ea4e7e3ccc12