2021 BMW 3 Series 3.0 M340d MHT

Overview

• Make: BMW
• Model: 3 Series
• Version: 3.0 M340d MHT Auto 4WD Euro 6 (s/s) 4dr (335 bhp)
• Year: 2021
• Mileage: 70,000 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 160 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 70,000 miles, this 2021 BMW 3 Series has covered about 14,900 more miles than other 2021 BMW 3 Series cars. The AskCar estimate for this car is £24,551. It is priced at £23,990, which is £561 below that estimate. The AskCar estimate uses 6,886 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 24 days ago. Its asking price has since fallen by £2,000. We checked its advertised mileage against the government's MOT record, and they match. You can find this car at Vogue Motor Company in Bolton. 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: £561 (2%) under the AskCar estimate of £24,551.

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 6,886 priced BMW 3 Series adverts across different ages and specifications, as of 7 November 2026.

A 2021 BMW 3 Series with the 3.0 diesel engine is typically advertised at £28,300: the median of the 148 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 24 days.

Price history

AskCar first saw this advert on 14 October 2026 at £25,990. Its asking price is now £23,990, £2,000 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 14 October 2026: £25,990
• 20 October 2026: £24,990
• 29 October 2026: £23,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 21 April 2027.

It has had 3 MOTs. The latest, on 22 April 2026, passed.

Advisories at the latest test: offside rear nail in tyre.

Mileage at that test: 66,376 miles, which matches the advertised 70,000 miles.

Advertised mileage is about 14,900 miles higher than the median mileage of a 2021 BMW 3 Series on AskCar.