2021 BMW 3 Series 3.0 M340d MHT

Overview

• Make: BMW
• Model: 3 Series
• Version: 3.0 M340d MHT Touring Auto 4WD Euro 6 (s/s) 5dr (335 bhp)
• Year: 2021
• Mileage: 74,730 miles
• Fuel: Diesel, mild hybrid
• Body: Estate, 5 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 165 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series has covered 74,730 miles, around 19,900 more miles than is typical for its age. The AskCar estimate for this car is £26,827. It is priced at £26,250, which is £577 below that estimate. The AskCar estimate uses UK dealer asking prices, including 6,897 BMW 3 Series adverts, and accounts for the car’s age, mileage and specification. Since we first spotted the advert 54 days ago, the asking price has dropped by £740. Its advertised mileage matches the government's MOT record. It is for sale at Premium Vehicles in Fleet. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £577 (2%) under the AskCar estimate of £26,827.

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 6,897 priced BMW 3 Series adverts across different ages and specifications, as of 5 November 2026.

A 2021 BMW 3 Series with the 3.0 diesel engine is typically advertised at £28,500: the median of the 144 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 54 days.

Price history

AskCar first saw this advert on 12 September 2026 at £26,990. Its asking price is now £26,250, £740 less. The latest price cut was seen on 31 October 2026.

Price changes recorded:

• 12 September 2026: £26,990
• 15 October 2026: £26,790
• 26 October 2026: £26,399
• 31 October 2026: £26,250

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 4 August 2027.

It has had 3 MOTs. The latest, on 27 July 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 72,867 miles, which matches the advertised 74,730 miles.

Advertised mileage is about 19,900 miles higher than the median mileage of a 2021 BMW 3 Series on AskCar.