2018 BMW 3 Series

3.0 340i M Sport Auto RWD Euro 6 (s/s) 4dr (322 bhp)

£19,490

Fair price: within 8% of the typical £19,444 for this model, age and mileage, drawing on 6,849 adverts of this make and model.

Overview

Make
BMW
Model
3 Series
Trim
M SPORT
Version
3.0 340i M Sport Auto RWD Euro 6 (s/s) 4dr (322 bhp)
Mileage
69,357 miles
Year
2018
Fuel type
Petrol
Body type
Saloon
Engine
3.0 L
Gearbox
Automatic
Power
322 bhp
Seats
5
CO2
159 g/km
Colour
White
Doors
4
Driven wheels
Rear Wheel Drive
Engine badge
340i
Emissions standard
Euro 6

About this car

This 2018 BMW 3 Series M Sport has covered 69,357 miles, around 4,500 fewer than typical for its age. The dealer is asking £19,490, which is £46 above our market estimate of £19,444. Our estimate draws on 6,849 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We have tracked this advert for 33 days. The recorded MOT expired on 19 October 2026, so ask the dealer whether it has been renewed. Its advertised mileage is consistent with the latest recorded MOT reading. You can find this car at Octane Car Sales in Peterborough.

Stock data from 21 October 2026.

How we estimate prices and check cars

Price history

First seen on 19 September 2026, 33 days ago. Advert duration calculated on 22 October 2026.

Recorded asking prices
Date observedAsking price
19 September 2026£19,490
21 October 2026£19,490

Price and mileage comparison

Estimated market asking price: £19,444. The asking price is £46 above 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 6,849 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 4,500 miles lower than typical for a 2018 BMW 3 Series.

The advertised mileage is consistent with the last MOT reading.

The recorded MOT has expired; ask the dealer for an up-to-date MOT.

MOT

MOT valid until 19 October 2026. 69,251 miles at the last test.

17 other cars with the same year, trim, gearbox and fuel are for sale from £9,800 to £28,990.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£9,80095,772 miles
£10,37893,710 miles
£10,99589,920 miles
£11,00090,639 miles
£11,29085,988 miles

These cars have covered 26,000–107,000 miles, compared with 69,357 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.

Browse all BMW 3 Series cars for sale · 2018 BMW 3 Series price guide

How to contact the dealer, its opening hours and the cheaper cars like this one are on this AskCar page.

Vehicle photos