2021 BMW X3 3.0 30d MHT M Sport

Overview

• Make: BMW
• Model: X3
• Trim: M Sport
• Version: 3.0 30d MHT M Sport Auto 4WD Euro 6 (s/s) 5dr (282 bhp)
• Year: 2021
• Mileage: 28,000 miles
• Fuel: Diesel, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 282 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Silver
• CO2: 164 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 28,000 miles on the clock, this 2021 BMW X3 M Sport has done roughly 19,000 fewer miles than a typical 2021 BMW X3. The dealer is asking £29,995, which is £2,186 below the AskCar estimate of £32,181. To work out the AskCar estimate, we analyse UK dealer adverts for 3,046 BMW X3 cars across different ages and specifications. We first recorded this car for sale today. Its advertised mileage matches the government's MOT record. It is for sale at City Cars Scotland in Aberdeen. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 9 November 2026.

How we estimate prices and check cars

Price

Fair price: £2,186 (6%) under the AskCar estimate of £32,181.

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 3,046 priced BMW X3 adverts across different ages and specifications, as of 9 November 2026.

A 2021 BMW X3 with the 3.0 diesel engine is typically advertised at £31,500: the median of the 37 for sale on AskCar, as of 9 November 2026.

Time on sale

AskCar first saw this 2021 BMW X3 advertised today. About half of 2021 BMW X3 cars are gone from sale within a month of being advertised: 148 of the 317 first advertised between 13 July 2026 and 6 October 2026.

Price history

AskCar first saw this advert on 9 November 2026 at £29,995. 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 9 November 2026: valid until 11 February 2027.

It failed its MOT on 6 February 2026 (nearside windscreen wiper does not clear the windscreen effectively; nearside headlamp aim too high) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 25,068 miles, which matches the advertised 28,000 miles.

Advertised mileage is about 19,000 miles lower than the median mileage of a 2021 BMW X3 on AskCar.

Similar cars

14 other 2021 BMW X3 M Sport 3.0 diesel automatic SUVs are for sale at UK dealers, from £20,450 to £35,900, as of 9 November 2026.

The 3 closest to this car in mileage:

• 2021 BMW X3 M Sport, 3.0 diesel SUV, grey. Mileage: 30,595 miles. Price: £31,499, £1,504 more than this car. Dealer: Williams Bolton Bmw in Bolton. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-ec9e207438de
• 2021 BMW X3 M Sport, 3.0 diesel SUV, black. Mileage: 31,209 miles. Price: £30,495, £500 more than this car. Dealer: Ballyrobert Mallusk in Belfast. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-9f445228bfa2
• 2021 BMW X3 M Sport, 3.0 diesel SUV, black. Mileage: 23,953 miles. Price: £35,900, £5,905 more than this car. Dealer: Sytner Select Swindon in Swindon. AskCar page: https://askcar.co.uk/car/bmw-x3-2021-21d922754054