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) 5dr Touring (187 bhp)
• Year: 2021
• Mileage: 87,499 miles
• Fuel: Diesel, mild hybrid
• Body: Estate, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 134 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport is advertised with 87,499 miles, approximately 32,700 above the typical mileage for its age. The AskCar estimate for this car is £17,649. It is priced at £17,489, which is £160 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 6,897 BMW 3 Series cars across different ages and specifications. We first recorded this advert 161 days ago, and its asking price has since fallen by £1,500. Its advertised mileage matches the government's MOT record. You can find this car at The Hertford Car Company in Bayford. 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: £160 (under 1%) under the AskCar estimate of £17,649.

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 £18,989. Its asking price is now £17,489, £1,500 less. The latest price cut was seen on 8 October 2026.

Price changes recorded:

• 29 May 2026: £18,989
• 4 June 2026: £19,489
• 27 June 2026: £18,989
• 5 August 2026: £18,789
• 13 August 2026: £18,489
• 22 September 2026: £17,989
• 30 September 2026: £17,789
• 8 October 2026: £17,489

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 18 May 2027.

It has had 4 MOTs. The latest, on 19 May 2026, passed.

Advisories at the latest test: offside front track rod end ball joint dust cover damaged or deteriorated, but preventing the ingress of dirt; nearside front shock absorbers has light misting of oil; offside front shock absorbers has light misting of oil.

Mileage at that test: 87,432 miles, which matches the advertised 87,499 miles.

Advertised mileage is about 32,700 miles higher than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

33 other 2021 BMW 3 Series M Sport 2.0 diesel automatic estates are for sale at UK dealers, from £13,750 to £29,950, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 3 Series M Sport, 2.0 diesel estate, grey. Mileage: 88,801 miles. Price: £17,995, £506 more than this car. Dealer: A1 Auto Solutions in Maidenhead. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-efd0cd0fe603
• 2021 BMW 3 Series M Sport, 2.0 diesel estate, white. Mileage: 90,000 miles. Price: £15,995, £1,494 less than this car. Dealer: Jefferies Farm Car Sales in Billingshurst. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-5ec33771a27b
• 2021 BMW 3 Series M Sport, 2.0 diesel estate, white. Mileage: 94,000 miles. Price: £18,990, £1,501 more than this car. Dealer: Rosso Performance in Leeds. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-7514a3a6323c

• The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel estate, black, 17 miles from this car. Mileage: 47,663 miles. Price: £17,999, £510 more than this car. Dealer: Berkeley Motor Group in Greenford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-87938ae16550