2021 BMW X4 2.0 20d MHT M Sport

Price: £23,500. Good value: £4,621 (16%) under the AskCar estimate of £28,121, our expected asking price for this car from its model, age, mileage and specification, drawing on 655 priced BMW X4 adverts on AskCar as of 4 November 2026.

AskCar lists 667 used BMW X4 from 463 UK dealerships, as of 4 November 2026.

Overview

  • Make: BMW
  • Model: X4
  • Trim: M Sport
  • Version: 2.0 20d MHT M Sport Auto 4WD Euro 6 (s/s) 5dr (187 bhp)
  • Year: 2021
  • Mileage: 45,295 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: 156 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X4 M Sport is advertised with 45,295 miles, approximately 2,900 below the typical mileage for its age. The AskCar estimate for this car is £28,121. It is priced at £23,500, which is £4,621 below that estimate. The AskCar estimate uses 655 UK dealer adverts for the BMW X4, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 128 days ago. Its asking price has since fallen by £3,000. The government's MOT record matches its advertised mileage. You can find this car at Fusion Motors in Grays. 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

Good value: £4,621 (16%) under the AskCar estimate of £28,121.

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 128 days.

Price history

AskCar first saw this advert on 29 June 2026 at £26,500. Its asking price is now £23,500, £3,000 less. The latest price cut was seen on 30 October 2026.

Price changes recorded:

  • 29 June 2026: £26,500
  • 6 August 2026: £25,000
  • 13 September 2026: £24,500
  • 19 September 2026: £24,300
  • 6 October 2026: £24,000
  • 30 October 2026: £23,500

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: valid until 17 June 2027.

It has had 3 MOTs. The latest, on 26 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 44,150 miles, which matches the advertised 45,295 miles.

Advertised mileage is about 2,900 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: 44,800 miles. Price: £28,699, £5,199 more than this car. Dealer: MB500 in Market Harborough. AskCar page: https://askcar.co.uk/car/bmw-x4-2021-09cb774c65c7
  • 2021 BMW X4 M Sport, 2.0 diesel SUV, black. Mileage: 46,000 miles. Price: £28,995, £5,495 more than this car. Dealer: Evolve Motor Company in Newport. AskCar page: https://askcar.co.uk/car/bmw-x4-2021-099413ac3931
  • 2021 BMW X4 M Sport, 2.0 diesel SUV, grey. Mileage: 46,360 miles. Price: £28,495, £4,995 more than this car. Dealer: V12 Sports & Classics Ltd - Hinckley in Hinckley. AskCar page: https://askcar.co.uk/car/bmw-x4-2021-2c4080af9a46
  • The nearest: 2021 BMW X4 M Sport, 2.0 diesel SUV, grey, 16 miles from this car. Mileage: 28,972 miles. Price: £31,090, £7,590 more than this car. Dealer: Stratstone BMW Maidstone in Maidstone. AskCar page: https://askcar.co.uk/car/bmw-x4-2021-18924c1f5158

Browse all BMW X4 cars for sale · 2021 BMW X4 price guide

More like this

Photos

27 photos of this car are on its AskCar page.

As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.