2021 BMW 3 Series 2.0 320d MHT M Sport

Price: £15,995. Fair price: £1,050 (7%) over the AskCar estimate of £14,945, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,902 priced BMW 3 Series adverts on AskCar as of 6 November 2026.

AskCar lists 7,204 used BMW 3 Series from 2,726 UK dealerships, as of 6 November 2026.

Overview

  • Make: BMW
  • Model: 3 Series
  • Trim: M Sport
  • Version: 2.0 320d MHT M Sport Auto Euro 6 4dr (187 bhp)
  • Year: 2021
  • Mileage: 99,850 miles
  • Fuel: Diesel, mild hybrid
  • Body: Saloon, 4 doors, 5 seats
  • Engine: 2.0 litres, 187 bhp
  • Gearbox: Automatic
  • Colour: White
  • CO2: 129 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

At 99,850 miles, this 2021 BMW 3 Series M Sport has covered about 44,700 more miles than other 2021 BMW 3 Series cars. The dealer is asking £15,995, which is £1,050 above the AskCar estimate of £14,945. To work out the AskCar estimate, we analyse UK dealer adverts for 6,902 BMW 3 Series cars across different ages and specifications. The asking price is now £1,500 lower than when we first recorded the advert 162 days ago. Our latest MOT record expired on 31 August 2026. Check the current position with the dealer. We checked its advertised mileage against the government's MOT record, and they match. You can find this car at Ideal Car Centre in Bilston. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,050 (7%) over the AskCar estimate of £14,945.

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 6,902 priced BMW 3 Series adverts across different ages and specifications, as of 6 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 162 days.

Price history

AskCar first saw this advert on 28 May 2026 at £17,495. Its asking price is now £15,995, £1,500 less. The latest price cut was seen on 13 August 2026.

Price changes recorded:

  • 28 May 2026: £17,495
  • 18 June 2026: £16,995
  • 13 August 2026: £15,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: the latest record we hold ran out on 31 August 2026; ask the dealer for the current MOT.

It has had 3 MOTs. The latest, on 1 September 2025, passed.

Advisories at the latest test: offside rear tyre worn close to legal limit/worn on edge on 2mm and wearing on inner tread area.

Mileage at that test: 97,951 miles, which matches the advertised 99,850 miles.

Advertised mileage is about 44,700 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 6 November 2026.

The 3 closest to this car in mileage:

  • 2021 BMW 3 Series M Sport, 2.0 diesel saloon, blue. Mileage: 101,229 miles. Price: £16,495, £500 more than this car. Dealer: Car Bazaar in Sheffield. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-78d49da53858
  • 2021 BMW 3 Series M Sport, 2.0 diesel saloon, white. Mileage: 102,000 miles. Price: £16,795, £800 more than this car. Dealer: Car Mart in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-82f2a829ac18
  • 2021 BMW 3 Series M Sport, 2.0 diesel saloon, black. Mileage: 95,320 miles. Price: £15,395, £600 less than this car. Dealer: V12 Sports & Classics Ltd - Hinckley in Hinckley. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-3942132ae7ed
  • The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel saloon, white, 6 miles from this car. Mileage: 70,694 miles. Price: £18,998, £3,003 more than this car. Dealer: Arnold Clark Oldbury Fiat / Motorstore / Jeep / Abarth / BYD in Oldbury. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-dfb7529875cd

Browse all BMW 3 Series cars for sale · 2021 BMW 3 Series price guide

More like this

Photos

40 photos of this car are on its AskCar page.

As of 6 November 2026, AskCar lists 598,752 cars and vans from 12,905 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.