2021 BMW 3 Series 2.0 318d MHT M Sport

Version: 2.0 318d MHT M Sport Auto RWD Euro 6 (s/s) 4dr (148 bhp)

Price: £17,990. Fair price: £819 (4%) under the AskCar estimate of £18,809, our expected asking price for this car from its model, age, mileage and specification, drawing on 6,692 priced BMW 3 Series adverts on AskCar as of 29 October 2026.

AskCar lists 7,078 used BMW 3 Series from 2,699 UK dealerships, as of 29 October 2026.

Overview

Make
BMW
Model
3 Series
Trim
M Sport
Version
2.0 318d MHT M Sport Auto RWD Euro 6 (s/s) 4dr (148 bhp)
Mileage
64,000 miles
Year
2021
Fuel type
Diesel
Body type
Saloon
Engine
2.0 L
Gearbox
Automatic
Power
148 bhp
Seats
5
CO2
127 g/km
Colour
Grey
Doors
4
Driven wheels
Rear Wheel Drive
Engine badge
318d; MHT
Hybrid type
Mild hybrid
Emissions standard
Euro 6

About this car

With 64,000 miles on the clock, this 2021 BMW 3 Series M Sport has done roughly 9,300 more miles than a typical 2021 BMW 3 Series. The AskCar estimate for this car is £18,809. It is priced at £17,990, which is £819 below that estimate. The AskCar estimate uses UK dealer asking prices, including 6,692 BMW 3 Series adverts, and accounts for the car’s age, mileage and specification. It first appeared in our advert records today. Its MOT is recorded as valid until 7 June 2027. The advertised mileage is consistent with the latest MOT reading. It is advertised by Dawn Motors in Canterbury.

Stock data as of 29 October 2026.

How we estimate prices and check cars

Price history

AskCar first saw this advert on 29 October 2026.

Recorded asking prices
Date observedAsking price
29 October 2026£17,990

Price and mileage comparison

Fair price: £819 (4%) under the AskCar estimate of £18,809.

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 6,692 priced BMW 3 Series adverts across different ages and specifications, as of 29 October 2026.

Advertised mileage is about 9,300 miles higher than the median mileage of a 2021 BMW 3 Series on AskCar.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT: valid until 7 June 2027. 62,975 miles at the last test.

Other matching cars

108 other 2021 BMW 3 Series M Sport automatic diesel cars are for sale at UK dealers from £13,500 to £28,995, as of 29 October 2026.

The 5 cheapest:

The 108 matching cars have covered 20,757 to 131,041 miles, compared with 64,000 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.

Browse all BMW 3 Series cars for sale · 2021 BMW 3 Series price guide

More like this

Photos

33 photos of this car are on its AskCar page.

How to contact the dealer and its opening hours are on this AskCar page.

As of 29 October 2026, AskCar lists 587,923 cars and vans from 12,992 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.