2015 BMW X6 3.0 40d SE

Overview

• Make: BMW
• Model: X6
• Trim: SE
• Version: 3.0 40d SE Auto 4WD Euro 6 (s/s) 5dr (309 bhp)
• Year: 2015
• Mileage: 83,500 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 309 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 165 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2015 BMW X6 SE is advertised with 83,500 miles, approximately 5,000 below the typical mileage for its age. The AskCar estimate for this car is £15,331. It is priced at £14,990, which is £341 below that estimate. The AskCar estimate draws on 541 BMW X6 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 68 days ago. Its asking price has since fallen by £1,500. The government's MOT record matches its advertised mileage. You can find this car at Xenon Automotive in Welwyn Garden City. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £341 (2%) under the AskCar estimate of £15,331.

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 541 priced BMW X6 adverts across different ages and specifications, as of 7 November 2026.

A 2015 BMW X6 with the 3.0 diesel engine is typically advertised at £16,000: the median of the 34 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2015 BMW X6 has been on sale for at least 68 days.

Price history

AskCar first saw this advert on 31 August 2026 at £16,490. Its asking price is now £14,990, £1,500 less. The latest price cut was seen on 7 November 2026.

Price changes recorded:

• 31 August 2026: £16,490
• 27 September 2026: £15,990
• 19 October 2026: £15,490
• 7 November 2026: £14,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 19 August 2027.

It has had 10 MOTs. The latest, on 20 August 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 83,465 miles, which matches the advertised 83,500 miles.

Advertised mileage is about 5,000 miles lower than the median mileage of a 2015 BMW X6 on AskCar.