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 Euro 6 4dr (281 bhp)
• Year: 2021
• Mileage: 54,028 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 281 bhp
• Gearbox: Automatic
• Colour: Black
• CO2: 146 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2021 BMW 3 Series M Sport is 54,028 miles. Its asking price of £25,194 is £663 above the AskCar estimate of £24,531. The AskCar estimate uses 6,902 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. We have tracked this advert today. Its advertised mileage matches the government's MOT record. You can find this car at Phoenix Cars in Winchester. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £663 (2%) over the AskCar estimate of £24,531.

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 6,902 priced BMW 3 Series adverts across different ages and specifications, as of 6 November 2026.

A 2021 BMW 3 Series with the 3.0 diesel engine is typically advertised at £28,500: the median of the 146 for sale on AskCar, as of 6 November 2026.

Time on sale

AskCar first saw this 2021 BMW 3 Series advertised today. About half of 2021 BMW 3 Series cars are gone from sale within a month of being advertised: 433 of the 918 first advertised between 10 July 2026 and 3 October 2026.

Price history

AskCar first saw this advert on 6 November 2026 at £25,194. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 19 August 2027.

It has had 3 MOTs. The latest, on 20 August 2026, passed.

Advisories at the latest test: oil leak, but not excessive REAR DIFF; nearside ENGINE MOUNT WET,POSSIBLE OIL LEAK.

Mileage at that test: 50,596 miles, which matches the advertised 54,028 miles.

Advertised mileage is about 1,100 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

9 other 2021 BMW 3 Series M Sport 3.0 diesel automatic saloons are for sale at UK dealers, from £17,700 to £26,250, as of 6 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 3.0 diesel saloon, grey. Mileage: 52,500 miles. Price: £25,995, £801 more than this car. Dealer: RSK Cars in Wolverhampton. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-bdda4ae05d1b
• 2021 BMW 3 Series M Sport, 3.0 diesel saloon, black. Mileage: 56,200 miles. Price: £22,990, £2,204 less than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-0b2ad93fecb7
• 2021 BMW 3 Series M Sport, 3.0 diesel saloon, grey. Mileage: 44,320 miles. Price: £26,250, £1,056 more than this car. Dealer: Sycamore BMW in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-c4b88d2d4c31

• The nearest: 2021 BMW 3 Series M Sport, 3.0 diesel saloon, white, 56 miles from this car. Mileage: 40,824 miles. Price: £25,250, £56 more than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-69301e6eecfa