2021 BMW X3 3.0

Overview

• Make: BMW
• Model: X3
• Version: 3.0 M40i Auto 4WD Euro 6 5dr (354 bhp)
• Year: 2021
• Mileage: 55,316 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 354 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 206 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X3 has covered 55,316 miles, around 7,500 more miles than is typical for its age. The AskCar estimate for this car is £33,523. It is priced at £31,768, which is £1,755 below that estimate. The AskCar estimate draws on 3,099 BMW X3 adverts across the UK, adjusting for age, mileage, trim, engine and other specifications. We first saw this car advertised 72 days ago. Its asking price has since fallen by £2,582. The government's MOT record matches its advertised mileage. You can find this car at Prestige Cars Kent in Orpington. 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: £1,755 (5%) under the AskCar estimate of £33,523.

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 petrol 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 72 days.

Price history

AskCar first saw this advert on 26 August 2026 at £34,350. Its asking price is now £31,768, £2,582 less. The latest price cut was seen on 29 October 2026.

Price changes recorded:

• 26 August 2026: £34,350
• 5 September 2026: £34,046
• 10 September 2026: £33,801
• 15 September 2026: £33,632
• 19 September 2026: £33,451
• 22 September 2026: £33,281
• 26 September 2026: £33,149
• 3 October 2026: £32,699
• 8 October 2026: £32,487
• 13 October 2026: £32,324
• 17 October 2026: £32,256
• 20 October 2026: £32,096
• 24 October 2026: £31,908
• 29 October 2026: £31,768

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 6 November 2026: valid until 29 April 2027.

It failed its MOT on 14 April 2026 (offside side repeater not working) and passed later the same day.

There were no advisories at the latest test.

Mileage at that test: 52,942 miles, which matches the advertised 55,316 miles.

Advertised mileage is about 7,500 miles higher than the median mileage of a 2021 BMW X3 on AskCar.