2018 BMW 4 Series Gran Coupe 2.0 420d M Sport

Overview

• Make: BMW
• Model: 4 Series Gran Coupe
• Trim: M Sport
• Version: 2.0 420d M Sport Auto RWD Euro 6 (s/s) 5dr (187 bhp)
• Year: 2018
• Mileage: 106,720 miles
• Fuel: Diesel
• Body: Hatchback, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Grey
• CO2: 126 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 106,720 miles on the clock, this 2018 BMW 4 Series Gran Coupe M Sport has done roughly 33,200 more miles than a typical 2018 BMW 4 Series Gran Coupe. The AskCar estimate for this car is £11,118, but it is priced at £7,995, a difference of £3,123. Ask the dealer to confirm the price and vehicle details. The AskCar estimate uses 1,169 UK dealer adverts for the BMW 4 Series Gran Coupe, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 164 days ago. Its asking price has since fallen by £500. Our latest MOT record expired on 29 September 2026. Check the current position with the dealer. Its advertised mileage matches the government's MOT record. The seller is Wednesburys Car Sales, based in Wednesbury. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Far below the going rate: £3,123 (28%) under the AskCar estimate of £11,118. Worth asking the dealer why.

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 1,169 priced BMW 4 Series Gran Coupe adverts across different ages and specifications, as of 8 November 2026.

A 2018 BMW 4 Series Gran Coupe with the 2.0 diesel engine is typically advertised at £13,500: the median of the 119 for sale on AskCar, as of 8 November 2026.

Time on sale

This 2018 BMW 4 Series Gran Coupe has been on sale for at least 164 days.

Price history

AskCar first saw this advert on 28 May 2026 at £8,495. Its asking price is now £7,995, £500 less. The latest price cut was seen on 19 September 2026.

Price changes recorded:

• 28 May 2026: £8,495
• 19 September 2026: £7,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 8 November 2026: the latest record we hold ran out on 29 September 2026; ask the dealer for the current MOT.

It failed its MOT on 26 September 2025 (nearside rear tyre tread depth below requirements of 1.6mm; nearside rear tyre has ply or cords exposed; offside front road wheel badly distorted; and 2 more) and passed 4 days later, on 30 September 2025.

Advisories at the latest test: offside rear road wheel slightly distorted; undertrays fitted.///; nearside front tyre worn close to legal limit/worn on edge tread 2.6mm.///.

Mileage at that test: 104,109 miles, which matches the advertised 106,720 miles.

Advertised mileage is about 33,200 miles higher than the median mileage of a 2018 BMW 4 Series Gran Coupe on AskCar.

Similar cars

44 other 2018 BMW 4 Series Gran Coupe M Sport 2.0 diesel automatic hatchbacks are for sale at UK dealers, from £8,995 to £19,490, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 4 Series Gran Coupe M Sport, 2.0 diesel hatchback, grey. Mileage: 106,000 miles. Price: £11,295, £3,300 more than this car. Dealer: Eminent Motor Group in Oldham. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-221c2e74c3c8
• 2018 BMW 4 Series Gran Coupe M Sport, 2.0 diesel hatchback, blue. Mileage: 108,000 miles. Price: £11,495, £3,500 more than this car. Dealer: Coventry Sterling Motors in Coventry. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-2c301ddb5223
• 2018 BMW 4 Series Gran Coupe M Sport, 2.0 diesel hatchback, black. Mileage: 108,200 miles. Price: £11,547, £3,552 more than this car. Dealer: IM Car Supermarket in Dunstable. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-2d8257528be5

• The nearest: 2018 BMW 4 Series Gran Coupe M Sport, 2.0 diesel hatchback, black, 20 miles from this car. Mileage: 74,000 miles. Price: £13,800, £5,805 more than this car. Dealer: CSW Automotive in Stafford. AskCar page: https://askcar.co.uk/car/bmw-4-series-gran-coupe-2018-6c98b4c8053b