2018 BMW X6 3.0 30d M Sport
Version: 3.0 30d M Sport Auto 4WD Euro 6 (s/s) 5dr (254 bhp)
Price: £21,990. Fair price: £1,309 (5%) under the AskCar estimate of £23,299, our expected asking price for this car from its model, age, mileage and specification, drawing on 519 priced BMW X6 adverts on AskCar as of 30 October 2026.
AskCar lists 532 used BMW X6 from 374 UK dealerships, as of 30 October 2026.
Overview
- Make
- BMW
- Model
- X6
- Trim
- M Sport
- Version
- 3.0 30d M Sport Auto 4WD Euro 6 (s/s) 5dr (254 bhp)
- Mileage
- 51,807 miles
- Year
- 2018
- Fuel type
- Diesel
- Body type
- SUV
- Engine
- 3.0 L
- Gearbox
- Automatic
- Power
- 254 bhp
- Seats
- 5
- CO2
- 159 g/km
- Colour
- Black
- Doors
- 5
- Driven wheels
- Four Wheel Drive
- Engine badge
- 30d
- Emissions standard
- Euro 6
About this car
At 51,807 miles, this 2018 BMW X6 M Sport has covered about 14,400 fewer miles than other 2018 BMW X6 cars. Its asking price of £21,990 is £1,309 below the AskCar estimate of £23,299. The AskCar estimate uses 519 UK dealer adverts for the BMW X6, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 56 days ago. Its asking price has since fallen by £1,800. MOT records show an expiry date of 1 September 2027, and the latest recorded mileage is consistent with the advert. You can find this car at East Kilbride Used Car Centre in Glasgow.
Stock data as of 30 October 2026.
Price history
AskCar first saw this advert on 4 September 2026, 56 days ago. Price reduced by £1,800 from £23,790 since AskCar first saw it. 3 price reductions recorded, the latest seen on 16 October 2026.
| Date observed | Asking price |
|---|---|
| 4 September 2026 | £23,790 |
| 5 September 2026 | £22,990 |
| 24 September 2026 | £22,490 |
| 16 October 2026 | £21,990 |
| 30 October 2026 | £21,990 |
Price and mileage comparison
Fair price: £1,309 (5%) under the AskCar estimate of £23,299.
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 519 priced BMW X6 adverts across different ages and specifications, as of 30 October 2026.
Advertised mileage is about 14,400 miles lower than the median mileage of a 2018 BMW X6 on AskCar.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT: valid until 1 September 2027. 51,803 miles at the last test.
Other matching cars
29 other 2018 BMW X6 M Sport automatic diesel cars are for sale at UK dealers from £13,995 to £29,995, as of 30 October 2026.
The 5 cheapest:
- 2018 BMW X6. Price: £13,995. Mileage: 120,000 miles. Dealer: See Cars Nottingham in Little Eaton. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-a8a5bdb6721f
- 2018 BMW X6. Price: £14,799. Mileage: 129,000 miles. Dealer: Southern Automotive Solutions in Southampton. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-2cc7e1115ff0
- 2018 BMW X6. Price: £15,748. Mileage: 128,000 miles. Dealer: UP Prestige in Bridgnorth. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-a09314e1c6f5
- 2018 BMW X6. Price: £18,745. Mileage: 85,086 miles. Dealer: Georgesons Car Sales in Liverpool. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-9c58d000e21c
- 2018 BMW X6. Price: £18,995. Mileage: 78,946 miles. Dealer: JCT600 Doncaster Audi in Doncaster. AskCar page: https://askcar.co.uk/car/bmw-x6-2018-bd36ff41d0d3
The 29 matching cars have covered 10,000 to 129,000 miles, compared with 51,807 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 X6 cars for sale · 2018 BMW X6 price guide
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Photos
59 photos of this car are on its AskCar page.
How to contact the dealer and its opening hours are on this AskCar page.
As of 30 October 2026, AskCar lists 580,490 cars and vans from 12,695 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.