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: 71,000 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 160 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 71,000 miles on the clock, this 2021 BMW 3 Series has done roughly 16,300 more miles than a typical 2021 BMW 3 Series. The dealer is asking £24,995, which is £747 above the AskCar estimate of £24,248. To work out the AskCar estimate, we analyse UK dealer adverts for 6,905 BMW 3 Series cars across different ages and specifications. Since we first spotted the advert 50 days ago, the asking price has dropped by £500. Our latest MOT record expired on 29 September 2026. Check the current position with the dealer. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at Central Service Garage in Doncaster. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 11 November 2026.

How we estimate prices and check cars

Price

Fair price: £747 (3%) over the AskCar estimate of £24,248.

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 6,905 priced BMW 3 Series adverts across different ages and specifications, as of 11 November 2026.

A 2021 BMW 3 Series with the 3.0 diesel engine is typically advertised at £28,300: the median of the 149 for sale on AskCar, as of 11 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 50 days.

Price history

AskCar first saw this advert on 22 September 2026 at £25,495. Its asking price is now £24,995, £500 less. The latest price cut was seen on 11 November 2026.

Price changes recorded:

• 22 September 2026: £25,495
• 11 November 2026: £24,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 11 November 2026: the latest record we hold ran out on 29 September 2026; ask the dealer for the current MOT.

It has had 2 MOTs. The latest, on 26 September 2025, passed.

Advisories at the latest test: offside front tyre slightly damaged side wall; offside front tyre worn on inside; nearside front tyre worn on inside slightly.

Mileage at that test: 58,211 miles, which matches the advertised 71,000 miles.

Advertised mileage is about 16,300 miles higher than the median mileage of a 2021 BMW 3 Series on AskCar.