2018 BMW 4 Series

2.0 420i M Sport Auto Euro 6 (s/s) 2dr (181 bhp)

£17,789

Fair price: within 8% of the typical £19,202 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 420i M Sport Auto Euro 6 (s/s) 2dr (181 bhp)
Mileage
24,000 miles
Year
2018
Fuel type
Petrol
Body type
Coupe
Engine
2.0 L
Gearbox
Automatic
Power
181 bhp
Seats
4
CO2
139 g/km
Colour
Blue
Doors
2
Engine badge
420i
Emissions standard
Euro 6

About this car

The advertised mileage for this 2018 BMW 4 Series M Sport is 24,000 miles. Our estimated market asking price is £19,202. This car is advertised at £17,789, which is £1,413 below that figure. The estimate uses 1,758 UK dealer adverts for the BMW 4 Series, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 128 days ago. Its asking price has since fallen by £200. Ask the dealer why the advert shows fewer miles than the 24,559 recorded at the latest MOT. Its recorded MOT is valid until 18 May 2027. It is advertised by AffordableCar in Tamworth.

Stock data from 22 October 2026.

How we estimate prices and check cars

Price history

First seen on 17 June 2026, 128 days ago. Advert duration calculated on 23 October 2026. Net asking-price reduction: £200 from the first recorded £17,989. 1 price reduction recorded, the latest observed on 8 July 2026.

Recorded asking prices
Date observedAsking price
17 June 2026£17,989
6 July 2026£17,989
8 July 2026£17,789
9 July 2026£17,789
22 October 2026£17,789

Price and mileage comparison

Estimated market asking price: £19,202. The asking price is £1,413 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 38,500 miles lower than typical for a 2018 BMW 4 Series.

Mileage concern: the advertised mileage is below the last MOT reading; ask the dealer to explain.

MOT

MOT valid until 18 May 2027. 24,559 miles at the last test.

69 other cars with the same year, trim, gearbox and fuel are for sale from £9,599 to £28,750.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£9,599117,000 miles
£10,299116,703 miles
£10,50065,800 miles
£11,295105,000 miles
£12,48872,600 miles

These cars have covered 10,000–117,000 miles, compared with 24,000 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