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: 89,162 miles
• Fuel: Petrol, mild hybrid
• Body: Saloon, 4 doors, 5 seats
• Engine: 3.0 litres, 369 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 176 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 3 Series has covered 89,162 miles, around 34,300 more miles than is typical for its age. Priced at £24,975, it is advertised £1,765 above the AskCar estimate of £23,210. The AskCar estimate draws on 6,822 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 60 days ago. Its asking price has since fallen by £1,513. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Junction 17 Cars Limited t/a Junction 17 Cars (Grantham), based in Grantham. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,765 (7%) over the AskCar estimate of £23,210.

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 6,822 priced BMW 3 Series adverts across different ages and specifications, as of 8 November 2026.

A 2021 BMW 3 Series with the 3.0 petrol engine is typically advertised at £28,400: the median of the 146 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 60 days.

Price history

AskCar first saw this advert on 9 September 2026 at £26,488. Its asking price is now £24,975, £1,513 less. The latest price cut was seen on 3 November 2026.

Price changes recorded:

• 9 September 2026: £26,488
• 9 October 2026: £25,475
• 30 October 2026: £24,975
• 31 October 2026: £25,475
• 3 November 2026: £24,975

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: valid until 26 April 2027.

It has had 3 MOTs. The latest, on 20 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 83,462 miles, which matches the advertised 89,162 miles.

Advertised mileage is about 34,300 miles higher than the median mileage of a 2021 BMW 3 Series on AskCar.