2018 BMW X3 2.0 20i M Sport

Overview

• Make: BMW
• Model: X3
• Trim: M Sport
• Version: 2.0 20i GPF M Sport Auto 4WD Euro 6 (s/s) 5dr (181 bhp)
• Year: 2018
• Mileage: 51,534 miles
• Fuel: Petrol
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 181 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Blue
• CO2: 166 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

With 51,534 miles on the clock, this 2018 BMW X3 M Sport has done roughly 13,300 fewer miles than a typical 2018 BMW X3. Priced at £19,100, it is advertised £2,106 below the AskCar estimate of £21,206. The AskCar estimate uses 3,034 UK dealer adverts for the BMW X3, with adjustments for age, mileage, trim, engine and other specifications. Since we first spotted the advert 48 days ago, the asking price has dropped by £1,350. Our records show an MOT expiry date of 29 September 2026, which has passed. Ask the dealer for an update. The government's MOT record matches its advertised mileage. It is advertised by Car Planet Barnet in New Southgate. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 4 November 2026.

How we estimate prices and check cars

Price

Good value: £2,106 (9%) under the AskCar estimate of £21,206.

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 3,034 priced BMW X3 adverts across different ages and specifications, as of 4 November 2026.

A 2018 BMW X3 with the 2.0 petrol engine is typically advertised at £18,400: the median of the 147 for sale on AskCar, as of 4 November 2026.

Time on sale

This 2018 BMW X3 has been on sale for at least 48 days.

Price history

AskCar first saw this advert on 17 September 2026 at £20,450. Its asking price is now £19,100, £1,350 less. The latest price cut was seen on 2 November 2026.

Price changes recorded:

• 17 September 2026: £20,450
• 7 October 2026: £20,150
• 12 October 2026: £19,850
• 19 October 2026: £19,550
• 26 October 2026: £19,300
• 2 November 2026: £19,100

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 4 November 2026: the latest record we hold ran out on 29 September 2026; ask the dealer for the current MOT.

It has had 5 MOTs. The latest, on 30 September 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 48,539 miles, which matches the advertised 51,534 miles.

Advertised mileage is about 13,300 miles lower than the median mileage of a 2018 BMW X3 on AskCar.

Similar cars

15 other 2018 BMW X3 M Sport 2.0 petrol automatic SUVs are for sale at UK dealers, from £15,495 to £23,771, as of 4 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW X3 M Sport, 2.0 petrol SUV, black. Mileage: 49,707 miles. Price: £22,595, £3,495 more than this car. Dealer: Signature Car Specialists in Burnley. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-a7d67f998f13
• 2018 BMW X3 M Sport, 2.0 petrol SUV, blue. Mileage: 53,479 miles. Price: £18,794, £306 less than this car. Dealer: FTR Performance in Tring. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-f250c3f29095
• 2018 BMW X3 M Sport, 2.0 petrol SUV, blue. Mileage: 47,990 miles. Price: £21,957, £2,857 more than this car. Dealer: Global Car Company T/A We-Sell-Any-Car.Com in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-e8c8f158ec1d

• The nearest: 2018 BMW X3 M Sport, 2.0 petrol SUV, white, 5 miles from this car. Mileage: 67,723 miles. Price: £16,990, £2,110 less than this car. Dealer: Global Cars in Enfield. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-4a261ce720c5