2021 BMW 4 Series 2.0 420d MHT M Sport

Overview

• Make: BMW
• Model: 4 Series
• Trim: M Sport
• Version: 2.0 420d MHT M Sport Auto RWD Euro 6 (s/s) 2dr (187 bhp)
• Year: 2021
• Mileage: 39,000 miles
• Fuel: Diesel, mild hybrid
• Body: Coupe, 2 doors, 4 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: Blue
• CO2: 128 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW 4 Series M Sport is advertised with 39,000 miles, approximately 5,100 below the typical mileage for its age. Priced at £25,490, it is advertised £460 above the AskCar estimate of £25,030. The AskCar estimate draws on 1,833 BMW 4 Series adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 154 days ago. Its asking price has since fallen by £500. The government's MOT record matches its advertised mileage. It is for sale at Automotive Cars in Keighley. 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: £460 (1%) over the AskCar estimate of £25,030.

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 2021 BMW 4 Series with the 2.0 diesel engine is typically advertised at £24,000: the median of the 149 for sale on AskCar, as of 5 November 2026.

Time on sale

This 2021 BMW 4 Series has been on sale for at least 154 days.

Price history

AskCar first saw this advert on 4 June 2026 at £25,990. Its asking price is now £25,490, £500 less. The latest price cut was seen on 12 October 2026.

Price changes recorded:

• 4 June 2026: £25,990
• 12 October 2026: £25,490

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 5 November 2026: valid until 7 June 2027.

It has had 4 MOTs. The latest, on 8 June 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 38,000 miles, which matches the advertised 39,000 miles.

Advertised mileage is about 5,100 miles lower than the median mileage of a 2021 BMW 4 Series on AskCar.

Similar cars

35 other 2021 BMW 4 Series M Sport 2.0 diesel automatic coupes are for sale at UK dealers, from £17,490 to £26,500, as of 5 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW 4 Series M Sport, 2.0 diesel coupe, black. Mileage: 39,450 miles. Price: £23,799, £1,691 less than this car. Dealer: Halliwell Jones North Wales BMW in Conwy. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-7856d70da0e4
• 2021 BMW 4 Series M Sport, 2.0 diesel coupe, black. Mileage: 37,900 miles. Price: £22,995, £2,495 less than this car. Dealer: Yorkshire Vehicle Solutions in York. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-f62467d64221
• 2021 BMW 4 Series M Sport, 2.0 diesel coupe, black. Mileage: 34,848 miles. Price: £23,995, £1,495 less than this car. Dealer: A1 Auto Solutions in Maidenhead. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-5e810c1fe515

• The nearest: 2021 BMW 4 Series M Sport, 2.0 diesel coupe, white, 16 miles from this car. Mileage: 17,330 miles. Price: £26,390, £900 more than this car. Dealer: Stratstone Bmw Harrogate in Harrogate. AskCar page: https://askcar.co.uk/car/bmw-4-series-2021-de4c3cd8923e