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: 34,720 miles
• Fuel: Diesel, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 157 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X3 M Sport has covered 34,720 miles, around 14,200 fewer miles than is typical for its age. The AskCar estimate for this car is £27,022. It is priced at £25,900, which is £1,122 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 3,076 BMW X3 cars across different ages and specifications. We first saw this car advertised 161 days ago. Its asking price has since fallen by £956. We checked its advertised mileage against the government's MOT record, and they match. You can find this car at Carsa Cannock in Cannock Chase. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,122 (4%) under the AskCar estimate of £27,022.

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 3,076 priced BMW X3 adverts across different ages and specifications, as of 5 November 2026.

A 2021 BMW X3 with the 2.0 diesel engine is typically advertised at £24,400: the median of the 177 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2021 BMW X3 has been on sale for at least 161 days.

Price history

AskCar first saw this advert on 28 May 2026 at £26,856. Its asking price is now £25,900, £956 less. The latest price cut was seen on 23 October 2026.

Price changes recorded:

• 28 May 2026: £26,856
• 29 May 2026: £26,840
• 5 June 2026: £26,657
• 8 June 2026: £26,516
• 16 June 2026: £26,265
• 17 June 2026: £26,033
• 21 June 2026: £25,964
• 24 June 2026: £25,809
• 27 June 2026: £25,615
• 30 June 2026: £25,383
• 3 July 2026: £25,358
• 20 July 2026: £25,187
• 3 August 2026: £25,137
• 11 September 2026: £26,149
• 23 October 2026: £25,900

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 29 May 2027.

It has had 3 MOTs. The latest, on 30 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 34,339 miles, which matches the advertised 34,720 miles.

Advertised mileage is about 14,200 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 5 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X3 M Sport, 2.0 diesel SUV, grey. Mileage: 34,486 miles. Price: £25,499, £401 less 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, silver. Mileage: 35,005 miles. Price: £24,000, £1,900 less than this car. Dealer: Car Planet Barnet in Barnet. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-3f2eef1cb253
• 2021 BMW X3 M Sport, 2.0 diesel SUV, black. Mileage: 33,810 miles. Price: £24,830, £1,070 less 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

• The nearest: 2021 BMW X3 M Sport, 2.0 diesel SUV, grey, under a mile from this car. Mileage: 44,771 miles. Price: £22,912, £2,988 less than this car. Dealer: Carsa Cannock in Cannock. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-dc1b07fd381b