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: 75,130 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: White
• CO2: 160 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 75,130 miles on the clock, this 2021 BMW 3 Series has done roughly 20,300 more miles than a typical 2021 BMW 3 Series. Its asking price of £24,480 is £814 above the AskCar estimate of £23,666. The AskCar estimate uses 6,897 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this advert 33 days ago, and its asking price has since fallen by £500. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Rivendell Cars in Hexham. 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: £814 (3%) over the AskCar estimate of £23,666.

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 33 days.

Price history

AskCar first saw this advert on 3 October 2026 at £24,980. Its asking price is now £24,480, £500 less. The latest price cut was seen on 23 October 2026.

Price changes recorded:

• 3 October 2026: £24,980
• 23 October 2026: £24,480

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 6 July 2027.

It has had 4 MOTs. The latest, on 10 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 72,576 miles, which matches the advertised 75,130 miles.

Advertised mileage is about 20,300 miles higher than the median mileage of a 2021 BMW 3 Series on AskCar.