2021 BMW X4 3.0 M40i
Version: 3.0 M40i Auto 4WD Euro 6 (s/s) 5dr (355 bhp)
Price: £33,500. Fair price: £2,320 (7%) over the AskCar estimate of £31,180, our expected asking price for this car from its model, age, mileage and specification, drawing on 651 priced BMW X4 adverts on AskCar as of 31 October 2026.
AskCar lists 661 used BMW X4 from 461 UK dealerships, as of 31 October 2026.
Overview
- Make
- BMW
- Model
- X4
- Version
- 3.0 M40i Auto 4WD Euro 6 (s/s) 5dr (355 bhp)
- Mileage
- 51,200 miles
- Year
- 2021
- Fuel type
- Petrol
- Body type
- SUV
- Engine
- 3.0 L
- Gearbox
- Automatic
- Power
- 355 bhp
- Seats
- 5
- CO2
- 203 g/km
- Colour
- Black
- Doors
- 5
- Driven wheels
- Four Wheel Drive
- Engine badge
- M40i
- Emissions standard
- Euro 6
About this car
This 2021 BMW X4 is advertised with 51,200 miles, approximately 2,400 above the typical mileage for its age. Priced at £33,500, it is advertised £2,320 above the AskCar estimate of £31,180. To work out the AskCar estimate, we analyse UK dealer adverts for 651 BMW X4 cars across different ages and specifications. It first appeared in our advert records today. MOT records show an expiry date of 12 December 2026, and the latest recorded mileage is consistent with the advert. The seller is Sytner Solihull BMW, based in Solihull.
Stock data as of 31 October 2026.
Price history
AskCar first saw this advert on 31 October 2026.
| Date observed | Asking price |
|---|---|
| 31 October 2026 | £33,500 |
Price and mileage comparison
Fair price: £2,320 (7%) over the AskCar estimate of £31,180.
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 651 priced BMW X4 adverts across different ages and specifications, as of 31 October 2026.
Advertised mileage is about 2,400 miles higher than the median mileage of a 2021 BMW X4 on AskCar.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT: valid until 12 December 2026. 40,938 miles at the last test.
Other matching cars
6 other 2021 BMW X4 automatic petrol cars are for sale at UK dealers from £28,999 to £39,600, as of 31 October 2026.
The 5 cheapest:
- 2021 BMW X4. Price: £28,999. Mileage: 44,831 miles. Dealer: HPL Preston in Preston. AskCar page: https://askcar.co.uk/car/bmw-x4-2021-0213235c20d3
- 2021 BMW X4. Price: £31,490. Mileage: 33,859 miles. Dealer: Sturgess Of Leicester in Leicester. AskCar page: https://askcar.co.uk/car/bmw-x4-2021-f0b16fc2f068
- 2021 BMW X4. Price: £31,500. Mileage: 46,903 miles. Dealer: Sytner Harold Wood BMW in Harold Wood. AskCar page: https://askcar.co.uk/car/bmw-x4-2021-8cc30b4d4641
- 2021 BMW X4. Price: £37,475. Mileage: 32,214 miles. Dealer: The Car Co in Bury. AskCar page: https://askcar.co.uk/car/bmw-x4-2021-9562fa8d986f
- 2021 BMW X4. Price: £38,590. Mileage: 16,935 miles. Dealer: Stratstone BMW Tunbridge Wells in Royal Tunbridge Wells. AskCar page: https://askcar.co.uk/car/bmw-x4-2021-0da75a5719ad
The 6 matching cars have covered 16,935 to 46,903 miles, compared with 51,200 miles for this car.
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.
Browse all BMW X4 cars for sale · 2021 BMW X4 price guide
More like this
How to contact the dealer and its opening hours are on this AskCar page.
As of 31 October 2026, AskCar lists 583,548 cars and vans from 12,716 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.