2018 BMW 3 Series 1.5 318i Sport

Overview

• Make: BMW
• Model: 3 Series
• Trim: Sport
• Version: 1.5 318i Sport Auto RWD Euro 6 4dr (07/15-) Step (134 bhp)
• Year: 2018
• Mileage: 85,253 miles
• Fuel: Petrol
• Body: Saloon, 4 doors, 5 seats
• Engine: 1.5 litres, 134 bhp
• Gearbox: Automatic
• Drive: Rear-wheel drive
• Colour: White
• CO2: 136 g/km
• Emissions standard: Euro 6, ULEZ compliant

About this car

This 2018 BMW 3 Series Sport has covered 85,253 miles, around 13,100 more miles than is typical for its age. The dealer is asking £9,400, which is £70 above the AskCar estimate of £9,330. To work out the AskCar estimate, we analyse UK dealer adverts for 6,822 BMW 3 Series cars across different ages and specifications. This car was first seen in our listings data 1 day ago. We checked its advertised mileage against the government's MOT record, and they match. It is advertised by Marshall BYD St Neots in St. Neots. How to contact the dealer and its opening hours are on this AskCar page.

Stock data as of 8 November 2026.

How we estimate prices and check cars

Price

Fair price: £70 (under 1%) over the AskCar estimate of £9,330.

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 6,822 priced BMW 3 Series adverts across different ages and specifications, as of 8 November 2026.

A 2018 BMW 3 Series with the 1.5 petrol engine is typically advertised at £10,000: the median of the 37 for sale on AskCar, as of 8 November 2026.

Time on sale

AskCar first saw this 2018 BMW 3 Series advertised 1 day ago. About half of 2018 BMW 3 Series cars are gone from sale within a month of being advertised: 277 of the 549 first advertised between 10 July 2026 and 5 October 2026.

Price history

AskCar first saw this advert on 7 November 2026 at £9,400. 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 8 November 2026: valid until 6 April 2027.

It failed its MOT on 2 April 2026 (nearside headlamp aim too low; offside headlamp aim too low and too far to the left) and passed later the same day.

Advisories at the latest test: nearside rear inner road wheel slightly distorted.

Mileage at that test: 78,719 miles, which matches the advertised 85,253 miles.

Advertised mileage is about 13,100 miles higher than the median mileage of a 2018 BMW 3 Series on AskCar.

Similar cars

13 other 2018 BMW 3 Series Sport 1.5 petrol automatic saloons are for sale at UK dealers, from £6,000 to £13,100, as of 8 November 2026.

The 3 closest to this car in mileage:

• 2018 BMW 3 Series Sport, 1.5 petrol saloon, white. Mileage: 84,019 miles. Price: £9,999, £599 more than this car. Dealer: cinch Corby in Corby. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-2479a0916ff5
• 2018 BMW 3 Series Sport, 1.5 petrol saloon, red. Mileage: 79,882 miles. Price: £6,000, £3,400 less than this car. Dealer: Oak View Car Sales in Cranbrook. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-c2163c65e01e
• 2018 BMW 3 Series Sport, 1.5 petrol saloon, grey. Mileage: 77,000 miles. Price: £9,995, £595 more than this car. Dealer: Balham Car London in Balham. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-a075a7bf6a85

• The nearest: 2018 BMW 3 Series Sport, 1.5 petrol saloon, blue, 6 miles from this car. Mileage: 106,800 miles. Price: £6,995, £2,405 less than this car. Dealer: Raymond Smith Garages in Bedford. AskCar page: https://askcar.co.uk/car/bmw-3-series-2018-94c7848d6b9a