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: 80,000 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 is advertised with 80,000 miles, approximately 25,200 above the typical mileage for its age. The dealer is asking £17,995, which is £1,144 above the AskCar estimate of £16,851. To work out the AskCar estimate, we analyse UK dealer adverts for 6,897 BMW 3 Series cars across different ages and specifications. The asking price is now £1,255 lower than when we first recorded the advert 108 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Ilex Car Sales, based in Londonderry. 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: £1,144 (6%) over the AskCar estimate of £16,851.

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 108 days.

Price history

AskCar first saw this advert on 20 July 2026 at £19,250. Its asking price is now £17,995, £1,255 less. The latest price cut was seen on 26 October 2026.

Price changes recorded:

• 20 July 2026: £19,250
• 26 October 2026: £17,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 17 June 2027.

It failed its MOT on 18 June 2026 (engine MIL inoperative or indicates a malfunction) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 80,094 miles, which matches the advertised 80,000 miles.

Advertised mileage is about 25,200 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, black. Mileage: 80,000 miles. Price: £17,750, £245 less than this car. Dealer: PMA Cars NI in Newry. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-710722457db2
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, white. Mileage: 79,390 miles. Price: £18,250, £255 more than this car. Dealer: Clitheroe Road Car Sales in Nelson. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-a4417fe40ab1
• 2021 BMW 3 Series M Sport, 2.0 diesel saloon, grey. Mileage: 81,496 miles. Price: £17,798, £197 less than this car. Dealer: Arnold Clark Stoke-on-Trent Vauxhall / Peugeot / Vanstore in Stoke-on-Trent. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-f0b20af75579

• The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel saloon, black, 15 miles from this car. Mileage: 63,507 miles. Price: £20,500, £2,505 more than this car. Dealer: Eakin Brothers in Londonderry. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-4301f7100f0b