2018 BMW 3 Series

Overview

Make

BMW

Model

3 Series

Trim

M SPORT

Version

3.0 335d M Sport Auto 4WD Euro 6 (s/s) 4dr (309 bhp)

Mileage

42,529 miles

Year

2018

Fuel type

Diesel

Body type

Saloon

Engine

3.0 L

Gearbox

Automatic

Power

309 bhp

Seats

5

CO2

145 g/km

Colour

Blue

Doors

4

Driven wheels

Four Wheel Drive

Engine badge

335d

Emissions standard

Euro 6

About this car

At 42,529 miles, this 2018 BMW 3 Series M Sport has covered about 30,500 fewer miles than other 2018 BMW 3 Series cars. Its asking price of £18,350 is £1,517 below our estimate of £19,867. Our estimate draws on 6,764 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first recorded this advert 115 days ago, and its asking price has since fallen by £1,900. The time on sale and price change could be useful context when negotiating. MOT records show an expiry date of 5 July 2027, and the latest recorded mileage is consistent with the advert. It is for sale at Car Planet Watford in Rickmansworth.

Stock data from 19 October 2026.

How we estimate prices and check cars

Price and mileage comparison

Estimated market asking price: £19,867. The asking price is £1,517 below this estimate.

The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.

The pricing calculation includes 6,764 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 30,500 miles lower than typical for a 2018 BMW 3 Series.

The advertised mileage is consistent with the last MOT reading.