2021 BMW 3 Series 2.0 320d MHT M Sport
Price: £17,999. Good value: £5,400 (23%) under the AskCar estimate of £23,399, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,886 priced BMW 3 Series adverts on AskCar as of 7 November 2026.
AskCar lists 7,202 used BMW 3 Series from 2,724 UK dealerships, as of 7 November 2026.
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: 47,663 miles
- Fuel: Diesel, mild hybrid
- Body: Estate, 5 doors, 5 seats
- Engine: 2.0 litres, 187 bhp
- Gearbox: Automatic
- Drive: Rear-wheel drive
- Colour: Black
- CO2: 134 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2021 BMW 3 Series M Sport has covered 47,663 miles, around 7,500 fewer miles than is typical for its age. Priced at £17,999, it is advertised £5,400 below the AskCar estimate of £23,399. To work out the AskCar estimate, we analyse UK dealer adverts for 6,886 BMW 3 Series cars across different ages and specifications. This car was first seen in our listings data 163 days ago. It is advertised by Berkeley Motor Group in Greenford. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 7 November 2026.
Price
Good value: £5,400 (23%) under the AskCar estimate of £23,399.
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 6,886 priced BMW 3 Series adverts across different ages and specifications, as of 7 November 2026.
Time on sale
This 2021 BMW 3 Series has been on sale for at least 163 days.
Price history
AskCar first saw this advert on 28 May 2026 at £17,999. Its asking price has not changed.
Mileage and MOT
Advertised mileage is about 7,500 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.
Similar cars
34 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 7 November 2026.
The 3 closest to this car in mileage:
- 2021 BMW 3 Series M Sport, 2.0 diesel estate, grey. Mileage: 47,910 miles. Price: £25,350, £7,351 more than this car. Dealer: Sytner Sheffield BMW in Sheffield. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-8d676d2bc383
- 2021 BMW 3 Series M Sport, 2.0 diesel estate, black. Mileage: 48,000 miles. Price: £20,995, £2,996 more than this car. Dealer: Newtons of Ashley in New Milton. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-082a1fdba5e4
- 2021 BMW 3 Series M Sport, 2.0 diesel estate, grey. Mileage: 48,197 miles. Price: £23,299, £5,300 more than this car. Dealer: Fresh Motors in Watton. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-a0d90117e984
- The nearest: 2021 BMW 3 Series M Sport, 2.0 diesel estate, white, 17 miles from this car. Mileage: 87,499 miles. Price: £16,989, £1,010 less than this car. Dealer: The Hertford Car Company in Hertford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2021-d93819a03e68
Browse all BMW 3 Series cars for sale · 2021 BMW 3 Series price guide
More like this
- Used BMW 3 Series M Sport prices
- Used BMW 3 Series for sale under £20,000
- Used automatic BMW 3 Series for sale
- Used diesel BMW 3 Series for sale
- Used BMW 3 Series for sale near Richmond upon Thames
Photos
31 photos of this car are on its AskCar page.
As of 7 November 2026, AskCar lists 601,018 cars and vans from 12,892 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.