2018 BMW X3

2.0 20i GPF Xline Auto 4WD Euro 6 (s/s) 5dr (181 bhp)

£20,450

Fair price: within 8% of the typical £19,650 for this model, age and mileage, drawing on 2,996 adverts of this make and model.

Overview

Make
BMW
Model
X3
Trim
XLINE
Version
2.0 20i GPF Xline Auto 4WD Euro 6 (s/s) 5dr (181 bhp)
Mileage
48,000 miles
Year
2018
Fuel type
Petrol
Body type
SUV
Engine
2.0 L
Gearbox
Automatic
Power
181 bhp
Seats
5
CO2
166 g/km
Colour
White
Doors
5
Driven wheels
Four Wheel Drive
Engine badge
20i
Emissions standard
Euro 6

About this car

At 48,000 miles, this 2018 BMW X3 Xline has covered about 15,500 fewer miles than other 2018 BMW X3 cars. The dealer is asking £20,450, which is £800 above our market estimate of £19,650. To estimate its market asking price, we analyse UK dealer adverts for 2,996 BMW X3 cars across different ages and specifications. We first recorded this advert 146 days ago, and its asking price has since fallen by £500. That may be worth mentioning if you discuss the price with the dealer. Its recorded MOT is valid until 21 February 2027, and its advertised mileage is consistent with the latest MOT reading. The seller is Quality Motor Company, based in Iver.

Stock data from 20 October 2026.

How we estimate prices and check cars

Price history

First seen on 28 May 2026, 146 days ago. Advert duration calculated on 21 October 2026. Net asking-price reduction: £500 from the first recorded £20,950. 1 price reduction recorded, the latest observed on 1 June 2026.

Recorded asking prices
Date observedAsking price
28 May 2026£20,950
1 June 2026£20,450
14 July 2026£20,450
20 October 2026£20,450

Price and mileage comparison

Estimated market asking price: £19,650. The asking price is £800 above this estimate.

The estimate uses UK dealer asking prices, accounting for make, model, trim, version, age, mileage, fuel, gearbox, body type, driven wheels, engine size and power. It estimates an advertised price, not a confirmed sale price.

The pricing calculation includes 2,996 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 15,500 miles lower than typical for a 2018 BMW X3.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 21 February 2027. 47,537 miles at the last test.

14 other cars with the same year, trim, gearbox and fuel are for sale from £14,600 to £22,990.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£14,600102,000 miles
£15,48585,301 miles
£16,24978,958 miles
£16,79066,829 miles
£16,80067,360 miles

These cars have covered 18,300–102,000 miles, compared with 48,000 miles for this car.

Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. Our estimate adjusts for these differences using the wider market data.

Browse all BMW X3 cars for sale · 2018 BMW X3 price guide

Similar cars for less

Dealer

Quality Motor Company, Iver. Across the dealer network: 85 cars for sale.

Dealer postcode: SL0 9AL.

Dealer opening hours

Monday
10:00-18:30
Tuesday
10:00-18:30
Wednesday
10:00-18:30
Thursday
10:00-18:30
Friday
10:00-18:30
Saturday
10:00-18:30
Sunday
Closed

Vehicle photos