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: 77,000 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

This 2021 BMW 3 Series M Sport has covered 77,000 miles. Its asking price of £16,895 is £350 below the AskCar estimate of £17,245. 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 161 days ago, the asking price has dropped by £1,004. The advertised mileage is lower than the latest MOT reading of 77,867 miles. Ask the dealer to explain. The latest recorded MOT expires on 5 May 2027. It is for sale at Autosmith N.e in Sunderland. 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: £350 (2%) under the AskCar estimate of £17,245.

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 161 days.

Price history

AskCar first saw this advert on 28 May 2026 at £17,899. Its asking price is now £16,895, £1,004 less. The latest price cut was seen on 17 October 2026.

Price changes recorded:

• 28 May 2026: £17,899
• 8 June 2026: £18,001
• 18 June 2026: £17,895
• 27 June 2026: £18,000
• 18 July 2026: £17,599
• 5 August 2026: £16,999
• 2 September 2026: £17,399
• 7 October 2026: £16,999
• 17 October 2026: £16,895

Mileage and MOT

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

It has had 3 MOTs. The latest, on 6 May 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 77,867 miles. The advert says 77,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 22,200 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, grey. Mileage: 75,759 miles. Price: £18,300, £1,405 more than this car. Dealer: Sytner Select Swindon in Swindon. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-2a5316b41879
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, grey. Mileage: 75,000 miles. Price: £18,980, £2,085 more than this car. Dealer: Kent Vehicles in Herne Common. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-db1edad3a28a
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, white. Mileage: 79,390 miles. Price: £18,250, £1,355 more than this car. Dealer: Clitheroe Road Car Sales in Nelson. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-a4417fe40ab1

• The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel saloon, white, 1 miles from this car. Mileage: 71,089 miles. Price: £19,799, £2,904 more than this car. Dealer: Wearside Autoparc in Sunderland. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-3fc30d62e984