2021 BMW X3

3.0 M40i Auto 4WD Euro 6 5dr (354 bhp)

£36,990

Fair price: within 8% of the typical £36,427 for this model, age and mileage, drawing on 2,989 adverts of this make and model.

Overview

Make
BMW
Model
X3
Version
3.0 M40i Auto 4WD Euro 6 5dr (354 bhp)
Mileage
35,256 miles
Year
2021
Fuel type
Petrol
Body type
SUV
Engine
3.0 L
Gearbox
Automatic
Power
354 bhp
Seats
5
CO2
212 g/km
Colour
Black
Doors
5
Driven wheels
Four Wheel Drive
Emissions standard
Euro 6

About this car

This 2021 BMW X3 is advertised with 35,256 miles, approximately 14,000 below the typical mileage for its age. Our estimated market asking price is £36,427. This car is advertised at £36,990, which is £563 above that figure. To estimate its market asking price, we analyse UK dealer adverts for 2,989 BMW X3 cars across different ages and specifications. This car was first seen in our listings data 41 days ago. Its recorded MOT is valid until 28 January 2027, and its advertised mileage is consistent with the latest MOT reading. The seller is Group 1 Colchester BMW, based in Colchester.

Stock data from 22 October 2026.

How we estimate prices and check cars

Price history

First seen on 12 September 2026, 41 days ago. Advert duration calculated on 23 October 2026.

Recorded asking prices
Date observedAsking price
12 September 2026£36,495
16 September 2026£37,990
8 October 2026£37,690
15 October 2026£36,990
22 October 2026£36,990

Price and mileage comparison

Estimated market asking price: £36,427. The asking price is £563 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 2,989 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 14,000 miles lower than typical for a 2021 BMW X3.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 28 January 2027. 32,645 miles at the last test.

14 other cars with the same year, trim, gearbox and fuel are for sale from £28,946 to £38,994.

Other matching cars (up to five, cheapest first)
Asking priceMileage
£28,94671,000 miles
£29,36055,701 miles
£29,98078,707 miles
£29,99977,000 miles
£30,50049,250 miles

These cars have covered 24,019–78,707 miles, compared with 35,256 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 · 2021 BMW X3 price guide

How to contact the dealer, its opening hours and the cheaper cars like this one are on this AskCar page.

Vehicle photos