2020 BMW X3

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

£35,500

Fair price: within 8% of the typical £34,571 for this model, age and mileage, drawing on 2,970 adverts of this make and model.

Overview

Make: BMW
Model: X3
Version: 3.0 M40i Auto 4WD Euro 6 5dr (354 bhp)
Mileage: 32,631 miles
Year: 2020
Fuel type: Petrol
Body type: SUV
Engine: 3.0 L
Gearbox: Automatic
Power: 354 bhp
Seats: 5
CO2: 241 g/km
Colour: Black
Doors: 5
Driven wheels: Four Wheel Drive
Engine badge: M40i
Emissions standard: Euro 6

About this car

This 2020 BMW X3 has covered 32,631 miles, around 18,600 fewer than typical for its age. At £35,500, it is advertised £929 above our estimated market asking price of £34,571. We use UK dealer asking prices, including 2,970 BMW X3 listings, and account for the car’s age, mileage and specification. It first appeared in our advert records 13 days ago. Its recorded MOT is valid until 23 September 2027, and its advertised mileage is consistent with the latest MOT reading. The seller is Sytner Harold Wood BMW, based in Romford.

Stock data from 19 October 2026.

How we estimate prices and check cars

Price history

First seen on 8 October 2026, 13 days ago. Advert duration calculated on 21 October 2026.

Recorded asking prices
Date observed	Asking price
8 October 2026	£35,500
19 October 2026	£35,500

Price and mileage comparison

Estimated market asking price: £34,571. The asking price is £929 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 2,970 adverts of this make and model across different ages and specifications.

Advertised mileage is approximately 18,600 miles lower than typical for a 2020 BMW X3.

The advertised mileage is consistent with the last MOT reading.

MOT

MOT valid until 23 September 2027. 30,459 miles at the last test.

9 other cars with the same year, trim, gearbox and fuel are for sale from £19,999 to £36,999.

Other matching cars (up to five, cheapest first)
Asking price	Mileage
£19,999	51,195 miles
£24,490	80,300 miles
£29,989	55,199 miles
£30,499	51,150 miles
£31,450	47,200 miles

These cars have covered 24,700–80,300 miles, compared with 32,631 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 · 2020 BMW X3 price guide

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Dealer

Sytner Harold Wood BMW, Romford. Across the dealer network: 140 branches, 10,310 cars for sale.

Dealer postcode: RM3 0GX.

Dealer opening hours

Monday: 08:30-18:00
Tuesday: 08:30-18:00
Wednesday: 08:30-18:00
Thursday: 08:30-18:00
Friday: 08:30-18:00
Saturday: 09:00-17:00
Sunday: 10:00-16:00