2021 BMW 3 Series 3.0 330d MHT M Sport

Price: £19,990. Fair price: £1,054 (5%) under the AskCar estimate of £21,044, 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: 3.0 330d MHT M Sport Auto RWD Euro 6 (s/s) 5dr Touring (282 bhp)
  • Year: 2021
  • Mileage: 70,960 miles
  • Fuel: Diesel, mild hybrid
  • Body: Estate, 5 doors, 5 seats
  • Engine: 3.0 litres, 282 bhp
  • Gearbox: Automatic
  • Drive: Rear-wheel drive
  • Colour: Blue
  • CO2: 142 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series M Sport has covered 70,960 miles, around 15,800 more miles than is typical for its age. The dealer is asking £19,990, which is £1,054 below the AskCar estimate of £21,044. To work out the AskCar estimate, we analyse UK dealer adverts for 6,902 BMW 3 Series cars across different ages and specifications. We first saw this car advertised 3 days ago. Its asking price has since fallen by £163. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is The Donalds Group Donalds Kia Ipswich, based in Ipswich. 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: £1,054 (5%) under the AskCar estimate of £21,044.

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.

A 2021 BMW 3 Series with the 3.0 diesel engine is typically advertised at £28,500: the median of the 146 for sale on AskCar, as of 6 November 2026.

Time on sale

AskCar first saw this 2021 BMW 3 Series advertised 3 days ago. About half of 2021 BMW 3 Series cars are gone from sale within a month of being advertised: 433 of the 918 first advertised between 10 July 2026 and 3 October 2026.

Price history

AskCar first saw this advert on 3 November 2026 at £20,153. Its asking price is now £19,990, £163 less. The latest price cut was seen on 5 November 2026.

Price changes recorded:

  • 3 November 2026: £20,153
  • 5 November 2026: £19,990

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 29 January 2027.

It has had 3 MOTs. The latest, on 10 January 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 65,632 miles, which matches the advertised 70,960 miles.

Advertised mileage is about 15,800 miles higher than the median mileage of a 2021 BMW 3 Series on AskCar.

Similar cars

7 other 2021 BMW 3 Series M Sport 3.0 diesel automatic estates are for sale at UK dealers, from £18,700 to £28,890, as of 6 November 2026.

The 3 closest to this car in mileage:

  • 2021 BMW 3 Series M Sport, 3.0 diesel estate, black. Mileage: 69,074 miles. Price: £24,942, £4,952 more than this car. Dealer: Ocean Plymouth in Plymouth. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-22df3f34c741
  • 2021 BMW 3 Series M Sport, 3.0 diesel estate, blue. Mileage: 77,251 miles. Price: £18,700, £1,290 less than this car. Dealer: Sytner Select Swindon in Swindon. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-3188b47585c6
  • 2021 BMW 3 Series M Sport, 3.0 diesel estate, black. Mileage: 56,000 miles. Price: £22,950, £2,960 more than this car. Dealer: Charles Hurst Usedirect Portadown in Belfast. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-1807564595f5
  • The nearest: 2021 BMW 3 Series M Sport, 3.0 diesel estate, black, 118 miles from this car. Mileage: 51,535 miles. Price: £23,900, £3,910 more than this car. Dealer: Sytner Select Nottingham in Nottingham. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-c68d85eabdc6

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

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Photos

5 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.