2018 BMW 8 Series 3.0 840d

Overview

• Make: BMW
• Model: 8 Series
• Version: 3.0 840d Steptronic 4WD Euro 6 (s/s) 2dr (316 bhp)
• Year: 2018
• Mileage: 92,000 miles
• Fuel: Diesel
• Body: Coupe, 2 doors, 4 seats
• Engine: 3.0 litres, 316 bhp
• Gearbox: Automatic (Steptronic)
• Drive: Four-wheel drive
• Colour: Black
• CO2: 160 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 8 Series has covered 92,000 miles, around 33,300 more miles than is typical for its age. Priced at £22,995, it is advertised £1,363 above the AskCar estimate of £21,632. The AskCar estimate uses UK dealer asking prices, including 183 BMW 8 Series adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 150 days ago, the asking price has dropped by £500. The government's MOT record matches its advertised mileage. You can find this car at Wheels Excellence in Chesham. 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: £1,363 (6%) over the AskCar estimate of £21,632.

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 183 priced BMW 8 Series adverts across different ages and specifications, as of 7 November 2026.

A 2018 BMW 8 Series with the 3.0 diesel engine is typically advertised at £28,000: the median of the 15 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2018 BMW 8 Series has been on sale for at least 150 days.

Price history

AskCar first saw this advert on 10 June 2026 at £23,495. Its asking price is now £22,995, £500 less. The latest price cut was seen on 19 June 2026.

Price changes recorded:

• 10 June 2026: £23,495
• 19 June 2026: £22,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 9 March 2027.

It has had 7 MOTs. The latest, on 10 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 91,791 miles, which matches the advertised 92,000 miles.

Advertised mileage is about 33,300 miles higher than the median mileage of a 2018 BMW 8 Series on AskCar.