2018 BMW X3 2.0 20d M Sport

Overview

• Make: BMW
• Model: X3
• Trim: M Sport
• Version: 2.0 20d M Sport Auto 4WD Euro 6 (s/s) 5dr (187 bhp)
• Year: 2018
• Mileage: 40,000 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Grey
• CO2: 144 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW X3 M Sport has covered 40,000 miles. The dealer is asking £22,990, which is £1,020 above the AskCar estimate of £21,970. To work out the AskCar estimate, we analyse UK dealer adverts for 2,992 BMW X3 cars across different ages and specifications. It first appeared in our advert records 83 days ago. Ask the dealer why the advert shows fewer miles than the 41,968 recorded at the latest MOT. MOT records show an expiry date of 13 July 2027. The seller is Karmann Classics, based in Guildford. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 2 November 2026.

How we estimate prices and check cars

Price

Fair price: £1,020 (4%) over the AskCar estimate of £21,970.

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 2,992 priced BMW X3 adverts across different ages and specifications, as of 2 November 2026.

A 2018 BMW X3 with the 2.0 diesel engine is typically advertised at £18,500: the median of the 151 for sale on AskCar, as of 2 November 2026.

Time on sale

This 2018 BMW X3 has been on sale for at least 83 days.

Price history

AskCar first saw this advert on 11 August 2026 at £22,990. 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 2 November 2026: valid until 13 July 2027.

It has had 9 MOTs. The latest, on 14 July 2026, passed.

There were no advisories at the latest test.

Mileage at that test: 41,968 miles. The advert says 40,000 miles, fewer than the MOT record, so ask the dealer which is right.

Advertised mileage is about 24,400 miles lower than the median mileage of a 2018 BMW X3 on AskCar.

Similar cars

78 other 2018 BMW X3 M Sport 2.0 diesel automatic SUVs are for sale at UK dealers, from £13,250 to £23,289, as of 2 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW X3 M Sport, 2.0 diesel SUV, blue. Mileage: 42,129 miles. Price: £19,995, £2,995 less than this car. Dealer: Westdrive Kia in Braintree. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-1672d1f89093
• 2018 BMW X3 M Sport, 2.0 diesel SUV, black. Mileage: 42,746 miles. Price: £20,990, £2,000 less than this car. Dealer: All Electric BYD Stourbridge in Stourbridge. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-daae42dcf2d9
• 2018 BMW X3 M Sport, 2.0 diesel SUV, black. Mileage: 36,000 miles. Price: £22,000, £990 less than this car. Dealer: Sytner Oldbury BMW in Oldbury. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-710ea5cac93a

• The nearest: 2018 BMW X3 M Sport, 2.0 diesel SUV, black, 14 miles from this car. Mileage: 66,310 miles. Price: £17,995, £4,995 less than this car. Dealer: Merc Autobarn in Hayes. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-dca8f5ad18c7