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: 74,180 miles
• Fuel: Diesel
• Body: SUV, 5 doors, 5 seats
• Engine: 2.0 litres, 187 bhp
• Gearbox: Automatic
• Drive: Four-wheel drive
• Colour: Black
• CO2: 144 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW X3 M Sport is advertised with 74,180 miles, approximately 9,800 above the typical mileage for its age. Its asking price of £16,808 is £1,070 below the AskCar estimate of £17,878. The AskCar estimate uses 2,992 UK dealer adverts for the BMW X3, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 158 days ago. Its asking price has since fallen by £1,455. We checked its advertised mileage against the government's MOT record, and they match. The seller is Carbase Bristol, based in Bristol. 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: £1,070 (5%) under the AskCar estimate of £17,878.

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 158 days.

Price history

AskCar first saw this advert on 28 May 2026 at £18,263. Its asking price is now £16,808, £1,455 less. The latest price cut was seen on 25 September 2026.

Price changes recorded:

• 28 May 2026: £18,263
• 29 May 2026: £18,107
• 1 June 2026: £18,207
• 2 June 2026: £18,119
• 3 June 2026: £18,133
• 4 June 2026: £18,235
• 5 June 2026: £18,216
• 8 June 2026: £18,149
• 16 June 2026: £17,756
• 17 June 2026: £17,735
• 18 June 2026: £17,867
• 19 June 2026: £17,716
• 22 June 2026: £17,653
• 23 June 2026: £17,646
• 24 June 2026: £17,607
• 29 June 2026: £17,559
• 30 June 2026: £17,566
• 2 July 2026: £17,624
• 3 July 2026: £17,640
• 4 July 2026: £17,628
• 21 July 2026: £17,391
• 24 July 2026: £17,367
• 25 July 2026: £17,340
• 27 July 2026: £17,256
• 31 July 2026: £17,227
• 3 August 2026: £17,170
• 19 August 2026: £17,570
• 20 August 2026: £17,614
• 21 August 2026: £17,658
• 22 August 2026: £17,702
• 25 August 2026: £17,385
• 26 August 2026: £17,300
• 27 August 2026: £17,286
• 28 August 2026: £17,139
• 29 August 2026: £17,225
• 2 September 2026: £17,136
• 9 September 2026: £17,121
• 10 September 2026: £17,105
• 11 September 2026: £17,104
• 18 September 2026: £17,000
• 24 September 2026: £16,825
• 25 September 2026: £16,808

Mileage and MOT

MOT, from the government's MOT records (DVSA, the Driver and Vehicle Standards Agency), as of 2 November 2026: valid until 30 November 2026.

It has had 5 MOTs. The latest, on 1 December 2025, passed.

There were no advisories at the latest test.

Mileage at that test: 68,958 miles, which matches the advertised 74,180 miles.

Advertised mileage is about 9,800 miles higher 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: 74,200 miles. Price: £18,300, £1,492 more than this car. Dealer: GS Car Centre in Preston. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-325bc4eb7ac0
• 2018 BMW X3 M Sport, 2.0 diesel SUV, blue. Mileage: 74,000 miles. Price: £17,695, £887 more than this car. Dealer: Cavendish UK Car Sales in Sudbury. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-e03988ffc22e
• 2018 BMW X3 M Sport, 2.0 diesel SUV, black. Mileage: 74,731 miles. Price: £20,550, £3,742 more than this car. Dealer: Grange Road Motors in Cookstown. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-1b25c21524c9

• The nearest: 2018 BMW X3 M Sport, 2.0 diesel SUV, white, 2 miles from this car. Mileage: 52,444 miles. Price: £18,299, £1,491 more than this car. Dealer: cinch in Bristol. AskCar page: https://askcar.co.uk/car/bmw-x3-2018-34739b53cf0b