2021 BMW X4 3.0 M40i

Overview

• Make: BMW
• Model: X4
• Version: 3.0 M40i Auto 4WD Euro 6 (s/s) 5dr (355 bhp)
• Year: 2021
• Mileage: 51,200 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 355 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 203 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2021 BMW X4 is advertised with 51,200 miles, approximately 3,000 above the typical mileage for its age. Priced at £33,500, it is advertised £2,436 above the AskCar estimate of £31,064. To work out the AskCar estimate, we analyse UK dealer adverts for 650 BMW X4 cars across different ages and specifications. It first appeared in our advert records 5 days ago. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Sytner Solihull BMW, based in Solihull. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 5 November 2026.

How we estimate prices and check cars

Price

Fair price: £2,436 (7%) over the AskCar estimate of £31,064.

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 650 priced BMW X4 adverts across different ages and specifications, as of 5 November 2026.

A 2021 BMW X4 with the 3.0 petrol engine is typically advertised at £28,500: the median of the 18 for sale on AskCar, as of 5 November 2026.

Time on sale

AskCar first saw this 2021 BMW X4 advertised 5 days ago. About 4 in 10 of 2021 BMW X4 cars are gone from sale within a month of being advertised: 26 of the 61 first advertised between 11 July 2026 and 2 October 2026.

Price history

AskCar first saw this advert on 31 October 2026 at £33,500. 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 5 November 2026: valid until 12 December 2026.

It failed its MOT on 3 December 2025 (nearside rear inner brake pad(s) less than 1.5 mm thick) and passed 1 day later, on 4 December 2025.

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

Mileage at that test: 40,938 miles, which matches the advertised 51,200 miles.

Advertised mileage is about 3,000 miles higher than the median mileage of a 2021 BMW X4 on AskCar.