2018 BMW 4 Series

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

£13,995

Good value: £1,951 under the typical £15,946 for this model, age and mileage, drawing on 1,749 adverts of this make and model.

Overview

Make
BMW
Model
4 Series
Trim
M SPORT
Version
2.0 420i M Sport Auto RWD Euro 6 (s/s) 2dr (181 bhp)
Mileage
47,625 miles
Year
2018
Fuel type
Petrol
Body type
Coupe
Engine
2.0 L
Gearbox
Automatic
Power
181 bhp
Seats
4
CO2
134 g/km
Colour
Black
Doors
2
Driven wheels
Rear Wheel Drive
Engine badge
420i
Emissions standard
Euro 6

About this car

This 2018 BMW 4 Series M Sport is advertised with 47,625 miles, approximately 15,400 below the typical mileage for its age. At £13,995, it is advertised £1,951 below our estimated market asking price of £15,946. Our estimate draws on 1,749 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. The asking price is now £1,500 lower than when we first recorded the advert 64 days ago. It may give you a starting point for a conversation about price. Its recorded MOT is valid until 6 March 2027, and its advertised mileage is consistent with the latest MOT reading. It is advertised by Car Brothers NI in Newtownabbey.

Stock data from 21 October 2026.

How we estimate prices and check cars

Price history

First seen on 19 August 2026, 64 days ago. Advert duration calculated on 22 October 2026. Net asking-price reduction: £1,500 from the first recorded £15,495. 4 price reductions recorded, the latest observed on 30 September 2026.

Recorded asking prices
Date observedAsking price
19 August 2026£15,495
26 August 2026£14,995
10 September 2026£14,795
24 September 2026£14,295
30 September 2026£13,995
21 October 2026£13,995

Price and mileage comparison

Estimated market asking price: £15,946. The asking price is £1,951 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 1,749 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 15,400 miles lower than typical for a 2018 BMW 4 Series.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 6 March 2027. 46,957 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 47,625 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