2018 BMW 4 Series 2.0 420d M Sport

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport
• Version: 2.0 420d M Sport Auto RWD Euro 6 (s/s) 2dr (187 bhp)
• Year: 2018
• Mileage: 93,787 miles
• Fuel: Diesel
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 124 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 4 Series M Sport is advertised with 93,787 miles, approximately 31,300 above the typical mileage for its age. The AskCar estimate for this car is £11,582. It is priced at £11,490, which is £92 below that estimate. To work out the AskCar estimate, we analyse UK dealer adverts for 1,833 BMW 4 Series cars across different ages and specifications. This car was first seen in our listings data 76 days ago. We checked its advertised mileage against the government's MOT record, and they match. It is for sale at Xenon Automotive in Welwyn Garden City. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £92 (under 1%) under the AskCar estimate of £11,582.

The AskCar estimate is our expected asking price for this car. It uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It is an advertised price, not a confirmed sale price.

It draws on 1,833 priced BMW 4 Series adverts across different ages and specifications, as of 5 November 2026.

A 2018 BMW 4 Series with the 2.0 diesel engine is typically advertised at £14,500: the median of the 117 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2018 BMW 4 Series has been on sale for at least 76 days.

Price history

AskCar first saw this advert on 21 August 2026 at £11,490. Its asking price has not changed.

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 24 April 2027.

It has had 9 MOTs. The latest, on 25 April 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 93,510 miles, which matches the advertised 93,787 miles.

Advertised mileage is about 31,300 miles higher than the median mileage of a 2018 BMW 4 Series on AskCar.

Similar cars

33 other 2018 BMW 4 Series M Sport 2.0 diesel automatic coupes are for sale at UK dealers, from £10,000 to £17,498, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 4 Series M Sport, 2.0 diesel coupe, blue. Mileage: 96,030 miles. Price: £11,690, £200 more than this car. Dealer: Central Car Sales in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-afbbcc3e083a
• 2018 BMW 4 Series M Sport, 2.0 diesel coupe, black. Mileage: 91,462 miles. Price: £11,695, £205 more than this car. Dealer: Greenlight in Blackburn. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-495f79ede371
• 2018 BMW 4 Series M Sport, 2.0 diesel coupe, blue. Mileage: 91,000 miles. Price: £12,995, £1,505 more than this car. Dealer: Money for Motors North East in Newcastle upon Tyne. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-8094dc9b66ff

• The nearest: 2018 BMW 4 Series M Sport, 2.0 diesel coupe, blue, 15 miles from this car. Mileage: 65,107 miles. Price: £12,700, £1,210 more than this car. Dealer: Car Planet Watford in Watford. AskCar page: https://askcar.co.uk/car/bmw-4-series-2018-30800b809e81