2021 BMW X4 3.0 M40i MHT

Price: £39,120. Fair price: £2,194 (5%) over the AskCar estimate of £36,926, our expected asking price for this car from its model, age, mileage and specification, drawing on 657 priced BMW X4 adverts on AskCar as of 6 November 2026.

AskCar lists 673 used BMW X4 from 469 UK dealerships, as of 6 November 2026.

Overview

  • Make: BMW
  • Model: X4
  • Version: 3.0 M40i MHT Auto 4WD Euro 6 5dr (355 bhp)
  • Year: 2021
  • Mileage: 33,306 miles
  • Fuel: Petrol, mild hybrid
  • Body: SUV, 5 doors, 5 seats
  • Engine: 3.0 litres, 355 bhp
  • Gearbox: Automatic
  • Drive: Four-wheel drive
  • Colour: Grey
  • CO2: 207 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X4 has covered 33,306 miles, around 15,100 fewer miles than is typical for its age. Priced at £39,120, it is advertised £2,194 above the AskCar estimate of £36,926. The AskCar estimate uses UK dealer asking prices, including 657 BMW X4 adverts, and accounts for the car’s age, mileage and specification. We first recorded this advert 30 days ago, and its asking price has since fallen by £1,725. Its advertised mileage matches the government's MOT record. It is advertised by Vines of Gatwick BMW in Crawley. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £2,194 (5%) over the AskCar estimate of £36,926.

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 657 priced BMW X4 adverts across different ages and specifications, as of 6 November 2026.

A 2021 BMW X4 with the 3.0 petrol engine is typically advertised at £28,500: the median of the 18 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2021 BMW X4 has been on sale for at least 30 days.

Price history

AskCar first saw this advert on 7 October 2026 at £40,845. Its asking price is now £39,120, £1,725 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

  • 7 October 2026: £40,845
  • 14 October 2026: £39,978
  • 22 October 2026: £39,800
  • 29 October 2026: £39,600
  • 5 November 2026: £39,120

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 27 November 2026.

It has had 2 MOTs. The latest, on 28 November 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 31,029 miles, which matches the advertised 33,306 miles.

Advertised mileage is about 15,100 miles lower than the median mileage of a 2021 BMW X4 on AskCar.

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

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Photos

56 photos of this car are on its AskCar page.

As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.