2021 BMW 3 Series 3.0 M340i MHT
Price: £32,998. Fair price: £1,053 (3%) under the AskCar estimate of £34,051, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,864 priced BMW 3 Series adverts on AskCar as of 10 November 2026.
AskCar lists 7,127 used BMW 3 Series from 2,713 UK dealerships, as of 10 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: 33,185 miles
- Fuel: Petrol, mild hybrid
- Body: Saloon, 4 doors, 5 seats
- Engine: 3.0 litres, 369 bhp
- Gearbox: Automatic
- Drive: Four-wheel drive
- Colour: Black
- CO2: 176 g/km
- Emissions standard: Euro 6, ULEZ compliant
About this car
This 2021 BMW 3 Series is advertised with 33,185 miles, approximately 21,500 below the typical mileage for its age. Its asking price of £32,998 is £1,053 below the AskCar estimate of £34,051. The AskCar estimate uses UK dealer asking prices, including 6,864 BMW 3 Series adverts, and accounts for the car’s age, mileage and specification. We have tracked this advert today. Its advertised mileage matches the government's MOT record. The seller is Arnold Clark Irvine BMW, based in Irvine. How to contact the dealer and its opening hours are on this AskCar page.
Stock data as of 10 November 2026.
Arnold Clark Irvine BMW is rated 4.1 out of 5 on Google.
Price
Fair price: £1,053 (3%) under the AskCar estimate of £34,051.
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 6,864 priced BMW 3 Series adverts across different ages and specifications, as of 10 November 2026.
A 2021 BMW 3 Series with the 3.0 petrol engine is typically advertised at £28,400: the median of the 147 for sale on AskCar, as of 10 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: 455 of the 963 first advertised between 10 July 2026 and 7 October 2026.
Price history
AskCar first saw this advert on 10 November 2026 at £32,998. 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 10 November 2026: valid until 29 October 2027.
It has had 5 MOTs. The latest, on 30 October 2026, passed.
There were no advisories at the latest test.
Mileage at that test: 33,206 miles, which matches the advertised 33,185 miles.
Advertised mileage is about 21,500 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
20 photos of this car are on its AskCar page.
As of 10 November 2026, AskCar lists 591,054 cars and vans from 12,888 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.