2020 BMW X3 3.0 M40d

Overview

• Make: BMW
• Model: X3
• Version: 3.0 M40d Auto 4WD Euro 6 (s/s) 5dr (322 bhp)
• Year: 2020
• Mileage: 86,220 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 322 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 169 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2020 BMW X3 is advertised with 86,220 miles, approximately 34,200 above the typical mileage for its age. The dealer is asking £22,998, which is £960 below the AskCar estimate of £23,958. To work out the AskCar estimate, we analyse UK dealer adverts for 3,051 BMW X3 cars across different ages and specifications. We have tracked this advert today. Its advertised mileage matches the government's MOT record. The seller is Arnold Clark Wallsend Silverlink Citroen / Peugeot / Jeep / OMODA / JAECOO, based in Wallsend. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 10 November 2026.

How we estimate prices and check cars

Price

Fair price: £960 (4%) under the AskCar estimate of £23,958.

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 3,051 priced BMW X3 adverts across different ages and specifications, as of 10 November 2026.

A 2020 BMW X3 with the 3.0 diesel engine is typically advertised at £29,900: the median of the 32 for sale on AskCar, as of 10 November 2026.

Time on sale

AskCar first saw this 2020 BMW X3 advertised today. About 6 in 10 of 2020 BMW X3 cars are gone from sale within a month of being advertised: 139 of the 251 first advertised between 11 July 2026 and 7 October 2026.

Price history

AskCar first saw this advert on 10 November 2026 at £22,998. 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 10 November 2026: valid until 13 August 2027.

It failed its MOT on 5 August 2026 (windscreen washer provides insufficient washer liquid) and passed 9 days later, on 14 August 2026.

Advisories at the latest test: items removed from driver's view prior to test items removed from rear view mirror.

Mileage at that test: 84,070 miles, which matches the advertised 86,220 miles.

Advertised mileage is about 34,200 miles higher than the median mileage of a 2020 BMW X3 on AskCar.