2021 BMW 3 Series 3.0 330d MHT M Sport

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport
• Version: 3.0 330d MHT M Sport Auto 4WD Euro 6 (s/s) 4dr (282 bhp)
• Year: 2021
• Mileage: 40,824 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 282 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: White
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 40,824 miles on the clock, this 2021 BMW 3 Series M Sport has done roughly 14,200 fewer miles than a typical 2021 BMW 3 Series. The AskCar estimate for this car is £27,729. It is priced at £25,550, which is £2,179 below that estimate. The AskCar estimate draws on 6,742 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 5 days ago, and its asking price has since fallen by £600. According to the government's MOT record, its advertised mileage is consistent with the latest test. You can find this car at Car Planet Watford in Rickmansworth. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £2,179 (7%) under the AskCar estimate of £27,729.

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 6,742 priced BMW 3 Series adverts across different ages and specifications, as of 2 November 2026.

A 2021 BMW 3 Series with the 3.0 diesel engine is typically advertised at £29,000: the median of the 139 for sale on AskCar, as of 2 November 2026.

Time on sale

AskCar first saw this 2021 BMW 3 Series advertised 5 days ago. About half of 2021 BMW 3 Series cars are gone from sale within a month of being advertised: 394 of the 846 first advertised between 10 July 2026 and 29 September 2026.

Price history

AskCar first saw this advert on 28 October 2026 at £26,150. Its asking price is now £25,550, £600 less. The latest price cut was seen on 2 November 2026.

Price changes recorded:

• 28 October 2026: £26,150
• 1 November 2026: £25,850
• 2 November 2026: £25,550

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 25 March 2027.

It has had 4 MOTs. The latest, on 18 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 37,130 miles, which matches the advertised 40,824 miles.

Advertised mileage is about 14,200 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

7 other 2021 BMW 3 Series M Sport 3.0 diesel automatic saloons are for sale at UK dealers, from £22,975 to £26,250, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 3.0 diesel saloon, grey. Mileage: 44,320 miles. Price: £26,250, £700 more than this car. Dealer: Sycamore BMW in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-c4b88d2d4c31
• 2021 BMW 3 Series M Sport, 3.0 diesel saloon, white. Mileage: 33,030 miles. Price: £22,975, £2,575 less than this car. Dealer: PCBS Sales in Wolverhampton. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-fea716a8860e
• 2021 BMW 3 Series M Sport, 3.0 diesel saloon, grey. Mileage: 52,500 miles. Price: £25,995, £445 more than this car. Dealer: RSK Cars in Wolverhampton. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-bdda4ae05d1b