2018 BMW X3 3.0 M40i

Overview

• Make: BMW
• Model: X3
• Version: 3.0 M40i Auto 4WD Euro 6 (s/s) 5dr (355 bhp)
• Year: 2018
• Mileage: 54,300 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 3.0 litres, 355 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 188 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW X3 is advertised with 54,300 miles, approximately 9,400 below the typical mileage for its age. Priced at £25,990, it is advertised £794 below the AskCar estimate of £26,784. The AskCar estimate uses 3,052 UK dealer adverts for the BMW X3, with adjustments for age, mileage, trim, engine and other specifications. We first recorded this car for sale today. According to the government's MOT record, its advertised mileage is consistent with the latest test. The seller is Rovia Cars, based in Waltham Cross. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 7 November 2026.

How we estimate prices and check cars

Price

Fair price: £794 (2%) under the AskCar estimate of £26,784.

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 3,052 priced BMW X3 adverts across different ages and specifications, as of 7 November 2026.

A 2018 BMW X3 with the 3.0 petrol engine is typically advertised at £22,100: the median of the 66 for sale on AskCar, as of 7 November 2026.

Time on sale

AskCar first saw this 2018 BMW X3 advertised today. About 4 in 10 of 2018 BMW X3 cars are gone from sale within a month of being advertised: 97 of the 227 first advertised between 9 July 2026 and 4 October 2026.

Price history

AskCar first saw this advert on 7 November 2026 at £25,990. 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 7 November 2026: valid until 10 August 2027.

It has had 7 MOTs. The latest, on 4 August 2026, passed.

Advisories at the latest test: offside rear child seat fitted not allowing full inspection of adult belt; front brake pad(s) wearing thin; nearside front tyre worn close to legal limit/worn on edge worn to 3mm and edges worn; and 1 more.

Mileage at that test: 52,330 miles, which matches the advertised 54,300 miles.

Advertised mileage is about 9,400 miles lower than the median mileage of a 2018 BMW X3 on AskCar.