2021 BMW 3 Series 3.0 M340i MHT

Overview

• Make: BMW
• Model: 3 Series
• Version: 3.0 M340i MHT Auto 4WD Euro 6 (s/s) 4dr (369 bhp)
• Year: 2021
• Mileage: 41,593 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 has covered 41,593 miles, around 13,600 fewer miles than is typical for its age. Priced at £31,898, it is advertised £604 below the AskCar estimate of £32,502. 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 £1,000 lower than when we first recorded the advert 48 days ago. We checked its advertised mileage against the government's MOT record, and they match. The seller is Arnold Clark Glasgow BMW, based in Glasgow. 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: £604 (1%) under the AskCar estimate of £32,502.

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

This 2021 BMW 3 Series has been on sale for at least 48 days.

Price history

AskCar first saw this advert on 19 September 2026 at £32,898. Its asking price is now £31,898, £1,000 less. The latest price cut was seen on 20 October 2026.

Price changes recorded:

• 19 September 2026: £32,898
• 20 October 2026: £31,898

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 13 July 2027.

It has had 4 MOTs. The latest, on 1 July 2026, passed.

Advisories at the latest test: offside front seat belt webbing slightly damaged or frayed.

Mileage at that test: 40,583 miles, which matches the advertised 41,593 miles.

Advertised mileage is about 13,600 miles lower than the median mileage of a 2021 BMW 3 Series on AskCar.