2021 BMW X4 2.0 20d MHT M Sport

Overview

• Make: BMW
• Model: X4
• Trim: M Sport
• Version: 2.0 xDrive20d MHT M Sport Auto 4WD Euro 6 5dr Step (187 bhp)
• Year: 2021
• Mileage: 28,972 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: 159 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 28,972 miles on the clock, this 2021 BMW X4 M Sport has done roughly 19,200 fewer miles than a typical 2021 BMW X4. Priced at £31,090, it is advertised £2,244 above the AskCar estimate of £28,846. The AskCar estimate draws on 655 BMW X4 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 49 days ago, the asking price has dropped by £1,200. Our latest MOT record expired on 24 September 2026. Check the current position with the dealer. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Stratstone BMW Maidstone in Aylesford. 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: £2,244 (7%) over the AskCar estimate of £28,846.

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 655 priced BMW X4 adverts across different ages and specifications, as of 4 November 2026.

A 2021 BMW X4 with the 2.0 diesel engine is typically advertised at £27,500: the median of the 31 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2021 BMW X4 has been on sale for at least 49 days.

Price history

AskCar first saw this advert on 16 September 2026 at £32,290. Its asking price is now £31,090, £1,200 less. The latest price cut was seen on 27 October 2026.

Price changes recorded:

• 16 September 2026: £32,290
• 19 September 2026: £32,490
• 2 October 2026: £32,290
• 9 October 2026: £31,490
• 15 October 2026: £31,690
• 27 October 2026: £31,090

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 24 September 2026; ask the dealer for the current MOT.

It has had 2 MOTs. The latest, on 25 September 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 21,332 miles, which matches the advertised 28,972 miles.

Advertised mileage is about 19,200 miles lower than the median mileage of a 2021 BMW X4 on AskCar.

Similar cars

30 other 2021 BMW X4 M Sport 2.0 diesel automatic SUVs are for sale at UK dealers, from £19,290 to £31,995, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X4 M Sport, 2.0 diesel SUV, black. Mileage: 30,919 miles. Price: £30,995, £95 less than this car. Dealer: NSA Motor Vehicles in Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x4-2021-f053c6027b4e
• 2021 BMW X4 M Sport, 2.0 diesel SUV, red. Mileage: 32,700 miles. Price: £31,995, £905 more than this car. Dealer: Ash Motors in Leeds. AskCar page: https://askcar.co.uk/car/bmw-x4-2021-7a2d8f5f6fef
• 2021 BMW X4 M Sport, 2.0 diesel SUV, white. Mileage: 34,825 miles. Price: £28,995, £2,095 less than this car. Dealer: Regency Car Sales Autovision Inverness in Inverness. AskCar page: https://askcar.co.uk/car/bmw-x4-2021-125623fea495

• The nearest: 2021 BMW X4 M Sport, 2.0 diesel SUV, grey, 16 miles from this car. Mileage: 45,295 miles. Price: £23,500, £7,590 less than this car. Dealer: Fusion Motors in Grays. AskCar page: https://askcar.co.uk/car/bmw-x4-2021-61191cdb3274