2018 BMW 4 Series

2.0 420d M Sport Auto RWD Euro 6 (s/s) 2dr (187 bhp)

£15,990

Fair price: within 8% of the typical £17,375 for this model, age and mileage, drawing on 1,758 adverts of this make and model.

Overview

Make
BMW
Model
4 Series
Trim
M SPORT
Version
2.0 420d M Sport Auto RWD Euro 6 (s/s) 2dr (187 bhp)
Mileage
35,664 miles
Year
2018
Fuel type
Diesel
Body type
Convertible
Engine
2.0 L
Gearbox
Automatic
Power
187 bhp
Seats
4
CO2
124 g/km
Colour
Black
Doors
2
Driven wheels
Rear Wheel Drive
Engine badge
420d
Emissions standard
Euro 6

About this car

With 35,664 miles on the clock, this 2018 BMW 4 Series M Sport has done roughly 26,800 fewer miles than a typical 2018 BMW 4 Series. The dealer is asking £15,990, which is £1,385 below our market estimate of £17,375. We use UK dealer asking prices, including 1,758 BMW 4 Series listings, and account for the car’s age, mileage and specification. The asking price is now £1,000 lower than when we first recorded the advert 90 days ago. It may give you a starting point for a conversation about price. The latest MOT record shows an expiry date of 21 June 2027, with the advertised mileage consistent with the recorded reading. You can find this car at Auto Technik in Lutterworth.

Stock data from 22 October 2026.

How we estimate prices and check cars

Price history

First seen on 26 July 2026, 90 days ago. Advert duration calculated on 24 October 2026. Net asking-price reduction: £1,000 from the first recorded £16,990. 3 price reductions recorded, the latest observed on 24 September 2026.

Recorded asking prices
Date observedAsking price
26 July 2026£16,990
11 August 2026£16,690
5 September 2026£16,250
24 September 2026£15,990
22 October 2026£15,990

Price and mileage comparison

Estimated market asking price: £17,375. The asking price is £1,385 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 1,758 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 26,800 miles lower than typical for a 2018 BMW 4 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 21 June 2027. 35,678 miles at the last test.

101 other cars with the same year, trim, gearbox and fuel are for sale from £10,000 to £20,995.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£10,000120,000 miles
£10,190109,000 miles
£10,990128,000 miles
£10,995127,000 miles
£10,99575,432 miles

These cars have covered 24,000–128,000 miles, compared with 35,664 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 4 Series cars for sale · 2018 BMW 4 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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