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: 33,810 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 33,810 miles, around 14,800 fewer miles than is typical for its age. The dealer is asking £25,180, which is £2,007 below the AskCar estimate of £27,187. 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 £5,380 lower than when we first recorded the advert 24 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is for sale at Big Motoring World Blue Bell Hill in Chatham. 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: £2,007 (7%) under the AskCar estimate of £27,187.

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 24 days.

Price history

AskCar first saw this advert on 9 October 2026 at £30,560. Its asking price is now £25,180, £5,380 less. The latest price cut was seen on 28 October 2026.

Price changes recorded:

• 9 October 2026: £30,560
• 10 October 2026: £25,710
• 11 October 2026: £25,700
• 13 October 2026: £25,670
• 14 October 2026: £25,630
• 16 October 2026: £25,570
• 17 October 2026: £25,530
• 19 October 2026: £25,540
• 24 October 2026: £25,310
• 28 October 2026: £25,180

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 6 May 2027.

It has had 4 MOTs. The latest, on 13 April 2026, passed.

Advisories at the latest test: nearside front tyre worn close to legal limit/worn on edge worn on edge 245/50/19; offside front tyre slightly damaged/cracking or perishing perishing tread area 245/50/19; nearside windscreen wiper blade defective.

Mileage at that test: 25,540 miles, which matches the advertised 33,810 miles.

Advertised mileage is about 14,800 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: 33,430 miles. Price: £25,249, £69 more than this car. Dealer: Motorpoint Burnley in Burnley. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-9cb0fa777623
• 2021 BMW X3 M Sport, 2.0 diesel SUV, grey. Mileage: 34,486 miles. Price: £25,499, £319 more than this car. Dealer: Available Car Supermarket - Castle Donington in Castle Donington. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-876c88a582ea
• 2021 BMW X3 M Sport, 2.0 diesel SUV, grey. Mileage: 34,720 miles. Price: £25,900, £720 more than this car. Dealer: Carsa Cannock in Cannock. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-15acc3c55011

• The nearest: 2021 BMW X3 M Sport, 2.0 diesel SUV, black, 13 miles from this car. Mileage: 42,000 miles. Price: £24,490, £690 less than this car. Dealer: The Car Outlet in Dartford. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-cec94e086e85