2020 BMW X3

3.0 30d M Sport Auto 4WD Euro 6 (s/s) 5dr (261 bhp)

£27,750

Fair price: within 8% of the typical £26,243 for this model, age and mileage, drawing on 2,996 adverts of this make and model.

Overview

Make: BMW
Model: X3
Trim: M SPORT
Version: 3.0 30d M Sport Auto 4WD Euro 6 (s/s) 5dr (261 bhp)
Mileage: 53,310 miles
Year: 2020
Fuel type: Diesel
Body type: SUV
Engine: 3.0 L
Gearbox: Automatic
Power: 261 bhp
Seats: 5
CO2: 157 g/km
Colour: Grey
Doors: 5
Driven wheels: Four Wheel Drive
Engine badge: 30d
Emissions standard: Euro 6

About this car

At 53,310 miles, this 2020 BMW X3 M Sport has covered about 2,200 more miles than other 2020 BMW X3 cars. Its asking price of £27,750 is £1,507 above our estimate of £26,243. The estimate uses 2,996 UK dealer adverts for the BMW X3, with adjustments for age, mileage, trim, engine and other specifications. We first saw this car advertised 32 days ago. Its asking price has since fallen by £800. Our latest MOT record expired on 25 September 2026. Check the current position with the dealer. Our comparison with the latest MOT reading has not flagged a mileage discrepancy. The seller is Merc Autobarn, based in Hayes.

Stock data from 20 October 2026.

How we estimate prices and check cars

Price history

First seen on 19 September 2026, 32 days ago. Advert duration calculated on 21 October 2026. Net asking-price reduction: £800 from the first recorded £28,550. 6 price reductions recorded, the latest observed on 20 October 2026.

Recorded asking prices
Date observed	Asking price
19 September 2026	£28,550
20 September 2026	£28,995
29 September 2026	£28,550
4 October 2026	£28,750
8 October 2026	£28,550
11 October 2026	£28,250
12 October 2026	£28,550
13 October 2026	£28,250
16 October 2026	£27,995
20 October 2026	£27,750

Price and mileage comparison

Estimated market asking price: £26,243. The asking price is £1,507 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 2,200 miles higher than typical for a 2020 BMW X3.

The advertised mileage is consistent with the last MOT reading.

The recorded MOT has expired; ask the dealer for an up-to-date MOT.

MOT

MOT valid until 25 September 2026. 47,133 miles at the last test.

48 other cars with the same year, trim, gearbox and fuel are for sale from £16,499 to £30,600.

Other matching cars (up to five, cheapest first)
Asking price	Mileage
£16,499	104,876 miles
£16,995	90,445 miles
£17,000	93,481 miles
£17,590	70,626 miles
£17,995	91,000 miles

These cars have covered 26,020–104,876 miles, compared with 53,310 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

Merc Autobarn, Hayes. Across the dealer network: 5 cars for sale.

Dealer postcode: UB3 4JQ.