2021 BMW 3 Series 3.0 M340d MHT

Price: £28,000. Fair price: £179 (under 1%) under the AskCar estimate of £28,179, 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
  • Version: 3.0 M340d MHT Touring Auto 4WD Euro 6 (s/s) 5dr (335 bhp)
  • Year: 2021
  • Mileage: 67,218 miles
  • Fuel: Diesel, mild hybrid
  • Body: Estate, 5 doors, 5 seats
  • Engine: 3.0 litres, 335 bhp
  • Gearbox: Automatic
  • Drive: Four-wheel drive
  • Colour: Blue
  • CO2: 165 g/km
  • Emissions standard: Euro 6, ULEZ compliant

About this car

With 67,218 miles on the clock, this 2021 BMW 3 Series has done roughly 12,100 more miles than a typical 2021 BMW 3 Series. Its asking price of £28,000 is £179 below the AskCar estimate of £28,179. The AskCar estimate draws on 6,886 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. This car was first seen in our listings data today. The government's MOT record matches its advertised mileage. It is advertised by Redgate Lodge in Newcastle Upon Tyne. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £179 (under 1%) under the AskCar estimate of £28,179.

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.

A 2021 BMW 3 Series with the 3.0 diesel engine is typically advertised at £28,300: the median of the 148 for sale on AskCar, as of 7 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: 436 of the 925 first advertised between 10 July 2026 and 4 October 2026.

Price history

AskCar first saw this advert on 7 November 2026 at £28,000. 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 7 November 2026: valid until 16 May 2027.

It has had 3 MOTs. The latest, on 15 May 2026, passed.

Advisories at the latest test: offside rear tyre worn close to legal limit/worn on edge 3mm and worn on edge; offside front tyre worn close to legal limit/worn on edge worn on edge.

Mileage at that test: 60,823 miles, which matches the advertised 67,218 miles.

Advertised mileage is about 12,100 miles higher 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

24 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.