2020 BMW X3 3.0 30d M Sport

Overview

• Make: BMW
• Model: X3
• Trim: M Sport
• Version: 3.0 30d M Sport Auto 4WD Euro 6 (s/s) 5dr (261 bhp)
• Year: 2020
• Mileage: 53,310 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 261 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 157 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

The advertised mileage for this 2020 BMW X3 M Sport is 53,310 miles. Its asking price of £27,995 is £1,998 above the AskCar estimate of £25,997. The AskCar estimate uses 3,034 UK dealer adverts for the BMW X3, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 46 days ago. Its asking price has since fallen by £555. Our latest MOT record expired on 25 September 2026. Check the current position with the dealer. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Merc Autobarn, based in Hayes. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,998 (7%) over the AskCar estimate of £25,997.

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 3,034 priced BMW X3 adverts across different ages and specifications, as of 4 November 2026.

A 2020 BMW X3 with the 3.0 diesel engine is typically advertised at £30,200: the median of the 32 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2020 BMW X3 has been on sale for at least 46 days.

Price history

AskCar first saw this advert on 19 September 2026 at £28,550. Its asking price is now £27,995, £555 less. The latest price cut was seen on 20 October 2026.

Price changes recorded:

• 19 September 2026: £28,550
• 20 September 2026: £28,995
• 29 September 2026: £28,550
• 4 October 2026: £28,750
• 8 October 2026: £28,550
• 11 October 2026: £28,250
• 12 October 2026: £28,550
• 13 October 2026: £28,250
• 16 October 2026: £27,995
• 20 October 2026: £27,750
• 21 October 2026: £27,995

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: the latest record we hold ran out on 25 September 2026; ask the dealer for the current MOT.

It failed its MOT on 16 September 2025 (nearside front tyre has a cut in excess of the requirements deep enough to reach the ply or cords) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 47,133 miles, which matches the advertised 53,310 miles.

Advertised mileage is about 1,700 miles higher than the median mileage of a 2020 BMW X3 on AskCar.

Similar cars

8 other 2020 BMW X3 M Sport 3.0 diesel automatic SUVs are for sale at UK dealers, from £22,490 to £29,490, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2020 BMW X3 M Sport, 3.0 diesel SUV, black. Mileage: 53,400 miles. Price: £24,950, £3,045 less than this car. Dealer: J.A. Jarvis in Fernhurst. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-e092cb035a89
• 2020 BMW X3 M Sport, 3.0 diesel SUV, black. Mileage: 52,264 miles. Price: £24,495, £3,500 less than this car. Dealer: Motor Range Liverpool in Liverpool. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-e31eb4e1dea0
• 2020 BMW X3 M Sport, 3.0 diesel SUV, white. Mileage: 60,089 miles. Price: £22,990, £5,005 less than this car. Dealer: Cars in MK in Milton Keynes. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-3914ac802c98

• The nearest: 2020 BMW X3 M Sport, 3.0 diesel SUV, black, 25 miles from this car. Mileage: 44,500 miles. Price: £29,490, £1,495 more than this car. Dealer: John Warren Cars in Stevenage. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-6e63a4f766ee