2021 BMW X3 3.0

Overview

• Make: BMW
• Model: X3
• Version: 3.0 MHT Auto 4WD Euro 6 5dr
• Year: 2021
• Mileage: 41,697 miles
• Fuel: Diesel, mild hybrid
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 181 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X3 has covered 41,697 miles, around 6,200 fewer miles than is typical for its age. Priced at £36,490, it is advertised £1,251 above the AskCar estimate of £35,239. To work out the AskCar estimate, we analyse UK dealer adverts for 3,099 BMW X3 cars across different ages and specifications. The asking price is now £1,760 lower than when we first recorded the advert 74 days ago. Its advertised mileage matches the government's MOT record. The seller is Sytner Luton BMW, based in Luton. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 6 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,251 (3%) over the AskCar estimate of £35,239.

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 3,099 priced BMW X3 adverts across different ages and specifications, as of 6 November 2026.

A 2021 BMW X3 with the 3.0 diesel engine is typically advertised at £32,000: the median of the 42 for sale on AskCar, as of 6 November 2026.

Time on sale

This 2021 BMW X3 has been on sale for at least 74 days.

Price history

AskCar first saw this advert on 24 August 2026 at £38,250. Its asking price is now £36,490, £1,760 less. The latest price cut was seen on 23 October 2026.

Price changes recorded:

• 24 August 2026: £38,250
• 26 September 2026: £37,850
• 10 October 2026: £37,500
• 17 October 2026: £37,000
• 23 October 2026: £36,490

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 6 December 2026.

It has had 2 MOTs. The latest, on 12 November 2025, passed.

Advisories at the latest test: nearside front tyre worn close to legal limit/worn on edge 3-4mm; offside front tyre worn close to legal limit/worn on edge 4mm.

Mileage at that test: 32,549 miles, which matches the advertised 41,697 miles.

Advertised mileage is about 6,200 miles lower than the median mileage of a 2021 BMW X3 on AskCar.