2021 BMW 3 Series 2.0 320d MHT M Sport

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport
• Version: 2.0 320d MHT M Sport Auto RWD Euro 6 (s/s) 4dr (187 bhp)
• Year: 2021
• Mileage: 45,447 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 129 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport has covered 45,447 miles, around 9,400 fewer miles than is typical for its age. Priced at £21,990, it is advertised £620 below the AskCar estimate of £22,610. 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 car for sale 46 days ago. The government's MOT record matches its advertised mileage. It is for sale at Brownroyd Motors in Heywood. 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: £620 (2%) under the AskCar estimate of £22,610.

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.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 46 days.

Price history

AskCar first saw this advert on 20 September 2026 at £21,990. Its asking price has not changed.

Price changes recorded:

• 20 September 2026: £21,990
• 19 October 2026: £23,990
• 5 November 2026: £21,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 25 March 2027.

It has had 3 MOTs. The latest, on 17 March 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 42,822 miles, which matches the advertised 45,447 miles.

Advertised mileage is about 9,400 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

59 other 2021 BMW 3 Series M Sport 2.0 diesel automatic saloons are for sale at UK dealers, from £12,700 to £25,995, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, grey. Mileage: 46,495 miles. Price: £25,995, £4,005 more than this car. Dealer: IH Performance in Sandy. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-2c8194d19255
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 44,307 miles. Price: £24,990, £3,000 more than this car. Dealer: Sycamore BMW in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-acd525e74a91
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, grey. Mileage: 47,200 miles. Price: £19,990, £2,000 less than this car. Dealer: S James Prestige in Essendine. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-eb2e5543ed6a

• The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel saloon, white, 3 miles from this car. Mileage: 41,000 miles. Price: £24,995, £3,005 more than this car. Dealer: A C G Motors in Manchester. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-cc6202b2ebe0