2018 BMW 3 Series

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

£24,990

Above the going rate: £2,436 over the typical £22,554 for this model, age and mileage, drawing on 6,724 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
44,800 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
Grey
Doors
4
Driven wheels
Rear Wheel Drive
Engine badge
340i
Emissions standard
Euro 6

About this car

This 2018 BMW 3 Series M Sport is advertised with 44,800 miles, approximately 29,200 below the typical mileage for its age. The dealer is asking £24,990, which is £2,436 above our market estimate of £22,554. Our estimate draws on 6,724 BMW 3 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. Since we first spotted the advert 8 days ago, the asking price has dropped by £500. Its recorded MOT is valid until 25 May 2027, and its advertised mileage is consistent with the latest MOT reading. It is advertised by BSB Automotive in Dartford.

Stock data from 23 October 2026.

How we estimate prices and check cars

Price history

First seen on 16 October 2026, 8 days ago. Advert duration calculated on 24 October 2026. Net asking-price reduction: £500 from the first recorded £25,490. 1 price reduction recorded, the latest observed on 19 October 2026.

Recorded asking prices
Date observedAsking price
16 October 2026£25,490
19 October 2026£24,990
23 October 2026£24,990

Price and mileage comparison

Estimated market asking price: £22,554. The asking price is £2,436 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 6,724 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 29,200 miles lower than typical for a 2018 BMW 3 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 25 May 2027. 43,851 miles at the last test.

16 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
£10,79092,612 miles
£10,99585,988 miles
£10,99589,920 miles

These cars have covered 26,000–107,000 miles, compared with 44,800 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

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