2021 BMW 3 Series 3.0 M340i MHT

Price: £30,050. Fair price: £608 (2%) over the AskCar estimate of £29,442, 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 M340i MHT Auto 4WD Euro 6 (s/s) 4dr (369 bhp)
  • Year: 2021
  • Mileage: 57,239 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

This 2021 BMW 3 Series has covered 57,239 miles, around 2,100 more miles than is typical for its age. The dealer is asking £30,050, which is £608 above the AskCar estimate of £29,442. To work out the AskCar estimate, we analyse UK dealer adverts for 6,886 BMW 3 Series cars across different ages and specifications. The asking price is now £345 lower than when we first recorded the advert 11 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Vines of Gatwick BMW, based in Crawley. 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: £608 (2%) over the AskCar estimate of £29,442.

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 petrol engine is typically advertised at £28,300: the median of the 148 for sale on AskCar, as of 7 November 2026.

Time on sale

This 2021 BMW 3 Series has been on sale for at least 11 days.

Price history

AskCar first saw this advert on 27 October 2026 at £30,395. Its asking price is now £30,050, £345 less. The latest price cut was seen on 7 November 2026.

Price changes recorded:

  • 27 October 2026: £30,395
  • 31 October 2026: £30,200
  • 7 November 2026: £30,050

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 7 November 2026: valid until 22 August 2027.

It has had 3 MOTs. The latest, on 7 August 2026, passed.

Advisories at the latest test: near side wheel rims curbed on inner rims.

Mileage at that test: 55,071 miles, which matches the advertised 57,239 miles.

Advertised mileage is about 2,100 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

7 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.