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: 70,870 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

This 2021 BMW 3 Series has covered 70,870 miles, around 16,000 more miles than is typical for its age. Its asking price of £23,495 is £832 below the AskCar estimate of £24,327. To work out the AskCar estimate, we analyse UK dealer adverts for 6,822 BMW 3 Series cars across different ages and specifications. The asking price is now £500 lower than when we first recorded the advert 18 days ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is V12 Sports & Classics Ltd - Wolverhampton, based in Wolverhampton. 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: £832 (3%) under the AskCar estimate of £24,327.

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

This 2021 BMW 3 Series has been on sale for at least 18 days.

Price history

AskCar first saw this advert on 21 October 2026 at £23,995. Its asking price is now £23,495, £500 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

• 21 October 2026: £23,995
• 5 November 2026: £23,495

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 12 October 2027.

It has had 4 MOTs. The latest, on 13 October 2026, passed.

Advisories at the latest test: tyre worn close to legal limit/worn on edge both rears on 4 mm.

Mileage at that test: 70,857 miles, which matches the advertised 70,870 miles.

Advertised mileage is about 16,000 miles higher than the median mileage of a 2021 BMW 3 Series on AskCar.