2021 BMW 3 Series 3.0 M340i MHT
Price: £28,330. Good value: £2,553 (8%) under the AskCar estimate of £30,883, 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
- Version: 3.0 M340i MHT Auto 4WD Euro 6 (s/s) 4dr (369 bhp)
- Year: 2021
- Mileage: 50,195 miles
- Fuel: Petrol, mild hybrid
- Body: Saloon, 4 doors, 5 seats
- Engine: 3.0 litres, 369 bhp
- Gearbox: Automatic
- Drive: Four-wheel drive
- Colour: Grey
- CO2: 176 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
At 50,195 miles, this 2021 BMW 3 Series has covered about 5,000 fewer miles than other 2021 BMW 3 Series cars. Priced at £28,330, it is advertised £2,553 below the AskCar estimate of £30,883. The AskCar estimate uses 6,902 UK dealer adverts for the BMW 3 Series, with adjustments for age, mileage, trim, engine and other specifications. It first appeared in our advert records today. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Evans Halshaw Citroen Sheffield, based in Sheffield. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 6 November 2026.
Price
Good value: £2,553 (8%) under the AskCar estimate of £30,883.
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 petrol 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 today. 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 6 November 2026 at £28,330. Its asking price has not changed.
Mileage and MOT
MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 26 October 2027.
It has had 3 MOTs. The latest, on 27 October 2026, passed.
Advisories at the latest test: nearside rear brake pad(s) wearing thin; offside rear brake pad(s) wearing thin; nearside rear tyre worn close to legal limit/worn on edge; and 1 more.
Mileage at that test: 49,813 miles, which matches the advertised 50,195 miles.
Advertised mileage is about 5,000 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.
Browse all BMW 3 Series cars for sale · 2021 BMW 3 Series price guide
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Photos
6 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.