2021 BMW 3 Series 3.0 M340d MHT

Overview

• Make: BMW
• Model: 3 Series
• Version: 3.0 M340d MHT Touring Auto 4WD Euro 6 (s/s) 5dr (335 bhp)
• Year: 2021
• Mileage: 42,429 miles
• Fuel: Diesel, mild hybrid
• Body: Estate, 5 doors, 5 seats
• Engine: 3.0 litres, 335 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 165 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 42,429 miles, this 2021 BMW 3 Series has covered about 12,400 fewer miles than other 2021 BMW 3 Series cars. The AskCar estimate for this car is £33,373. It is priced at £30,007, which is £3,366 below that estimate. The AskCar estimate draws on 6,897 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 76 days ago, the asking price has dropped by £3,984. Our records show an MOT expiry date of 13 September 2026, which has passed. Ask the dealer for an update. The government's MOT record matches its advertised mileage. You can find this car at Fisher Performance in Droitwich. 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

Good value: £3,366 (10%) under the AskCar estimate of £33,373.

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 76 days.

Price history

AskCar first saw this advert on 21 August 2026 at £33,991. Its asking price is now £30,007, £3,984 less. The latest price cut was seen on 4 November 2026.

Price changes recorded:

• 21 August 2026: £33,991
• 8 September 2026: £33,491
• 11 September 2026: £32,492
• 19 September 2026: £31,443
• 24 September 2026: £30,993
• 30 September 2026: £30,894
• 5 October 2026: £30,744
• 10 October 2026: £30,495
• 14 October 2026: £30,395
• 25 October 2026: £30,296
• 30 October 2026: £30,307
• 31 October 2026: £30,297
• 1 November 2026: £30,307
• 3 November 2026: £30,297
• 4 November 2026: £29,997
• 5 November 2026: £30,007

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: the latest record we hold ran out on 13 September 2026; ask the dealer for the current MOT.

It has had 2 MOTs. The latest, on 29 August 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 38,480 miles, which matches the advertised 42,429 miles.

Advertised mileage is about 12,400 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.