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: 69,679 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 160 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 69,679 miles, this 2021 BMW 3 Series has covered about 14,800 more miles than other 2021 BMW 3 Series cars. Its asking price of £24,499 is £52 below the AskCar estimate of £24,551. The AskCar estimate uses UK dealer asking prices, including 6,822 BMW 3 Series adverts, and accounts for the car’s age, mileage and specification. This car was first seen in our listings data 1 day ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Lookers BMW Crewe, based in Crewe. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £52 (under 1%) 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 6,822 priced BMW 3 Series adverts across different ages and specifications, as of 8 November 2026.

A 2021 BMW 3 Series with the 3.0 diesel engine is typically advertised at £28,400: the median of the 146 for sale on AskCar, as of 8 November 2026.

Time on sale

AskCar first saw this 2021 BMW 3 Series advertised 1 day ago. About half of 2021 BMW 3 Series cars are gone from sale within a month of being advertised: 436 of the 927 first advertised between 10 July 2026 and 5 October 2026.

Price history

AskCar first saw this advert on 7 November 2026 at £24,499. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 23 April 2027.

It has had 3 MOTs. The latest, on 24 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 63,592 miles, which matches the advertised 69,679 miles.

Advertised mileage is about 14,800 miles higher than the median mileage of a 2021 BMW 3 Series on AskCar.