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: 66,855 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: 160 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 66,855 miles, this 2021 BMW X3 M Sport has covered about 18,000 more miles than other 2021 BMW X3 cars. Its asking price of £20,495 is £1,507 below the AskCar estimate of £22,002. The AskCar estimate uses UK dealer asking prices, including 3,034 BMW X3 adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 160 days ago. Its asking price has since fallen by £3,768. The recorded MOT expired on 29 June 2026, so ask the dealer whether it has been renewed. Its advertised mileage matches the government's MOT record. The seller is D. M. Keith, based in Grimsby. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,507 (6%) under the AskCar estimate of £22,002.

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 3,034 priced BMW X3 adverts across different ages and specifications, as of 4 November 2026.

A 2021 BMW X3 with the 2.0 diesel engine is typically advertised at £24,500: the median of the 174 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2021 BMW X3 has been on sale for at least 160 days.

Price history

AskCar first saw this advert on 28 May 2026 at £24,263. Its asking price is now £20,495, £3,768 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 28 May 2026: £24,263
• 3 June 2026: £24,178
• 5 June 2026: £24,128
• 8 June 2026: £24,077
• 16 June 2026: £23,742
• 24 June 2026: £23,691
• 25 June 2026: £23,664
• 26 June 2026: £23,619
• 30 June 2026: £23,510
• 2 July 2026: £23,470
• 3 July 2026: £23,440
• 7 July 2026: £23,430
• 13 July 2026: £23,381
• 16 July 2026: £21,995
• 11 September 2026: £22,995
• 24 October 2026: £21,495
• 29 October 2026: £20,495

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: the latest record we hold ran out on 29 June 2026; ask the dealer for the current MOT.

It failed its MOT on 9 June 2025 (offside rear tyre has ply or cords exposed cut to cords tread) and passed later the same day.

Advisories at the latest test: under trays fitted.

Mileage at that test: 59,441 miles, which matches the advertised 66,855 miles.

Advertised mileage is about 18,000 miles higher than the median mileage of a 2021 BMW X3 on AskCar.

Similar cars

95 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 4 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X3 M Sport, 2.0 diesel SUV, grey. Mileage: 66,536 miles. Price: £23,450, £2,955 more than this car. Dealer: Sytner Worcester BMW in Worcester. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-b98851d5fa1c
• 2021 BMW X3 M Sport, 2.0 diesel SUV, grey. Mileage: 67,215 miles. Price: £21,975, £1,480 more than this car. Dealer: Sytner Group Geely Sunderland in Sunderland. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-e4d9d198cafe
• 2021 BMW X3 M Sport, 2.0 diesel SUV, grey. Mileage: 67,280 miles. Price: £21,599, £1,104 more than this car. Dealer: Fords Of Winsford Car Supermarket in Winsford. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-f2ca428d86e9