2021 BMW 3 Series 2.0 318d MHT M Sport

Overview

• Make: BMW
• Model: 3 Series
• Trim: M Sport
• Version: 2.0 318d MHT M Sport Auto RWD Euro 6 (s/s) 4dr (148 bhp)
• Year: 2021
• Mileage: 73,000 miles
• Fuel: Diesel, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 2.0 litres, 148 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Black
• CO2: 127 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

At 73,000 miles, this 2021 BMW 3 Series M Sport has covered about 18,200 more miles than other 2021 BMW 3 Series cars. The AskCar estimate for this car is £17,785. It is priced at £17,990, which is £205 above that estimate. The AskCar estimate uses UK dealer asking prices, including 6,897 BMW 3 Series adverts, and accounts for the car’s age, mileage and specification. We first saw this car advertised 91 days ago. Its asking price has since fallen by £760. According to the government's MOT record, its advertised mileage is consistent with the latest test. It is advertised by Automotive Cars in Keighley. 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: £205 (1%) over the AskCar estimate of £17,785.

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 91 days.

Price history

AskCar first saw this advert on 6 August 2026 at £18,750. Its asking price is now £17,990, £760 less. The latest price cut was seen on 2 November 2026.

Price changes recorded:

• 6 August 2026: £18,750
• 12 October 2026: £18,490
• 2 November 2026: £17,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 4 June 2027.

It failed its MOT on 5 June 2026 (tyre pressure monitoring system malfunctioning or obviously inoperative) and passed later the same day.

Advisories at the latest test: offside front tyre worn close to legal limit/worn on edge.

Mileage at that test: 71,780 miles, which matches the advertised 73,000 miles.

Advertised mileage is about 18,200 miles higher 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, blue. Mileage: 73,370 miles. Price: £17,186, £804 less than this car. Dealer: Carbase Lympsham in Lympsham. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-841b8ab8a8b1
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, white. Mileage: 71,089 miles. Price: £19,799, £1,809 more than this car. Dealer: Wearside Autoparc in Sunderland. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-3fc30d62e984
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, grey. Mileage: 75,000 miles. Price: £18,980, £990 more than this car. Dealer: Kent Vehicles in Herne Common. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-db1edad3a28a

• The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel saloon, white, 13 miles from this car. Mileage: 79,390 miles. Price: £18,250, £260 more than this car. Dealer: Clitheroe Road Car Sales in Nelson. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-a4417fe40ab1