2020 BMW X3 3.0 M40d
Version: 3.0 M40d Auto 4WD Euro 6 (s/s) 5dr (322 bhp)
Price: £25,200. Fair price: £428 (1%) under the AskCar estimate of £25,628, our expected asking price for this car from its model, age, mileage and specification, drawing on 3,003 priced BMW X3 adverts on AskCar as of 31 October 2026.
AskCar lists 3,056 used BMW X3 from 1,192 UK dealerships, as of 31 October 2026.
Overview
- Make
- BMW
- Model
- X3
- Version
- 3.0 M40d Auto 4WD Euro 6 (s/s) 5dr (322 bhp)
- Mileage
- 76,891 miles
- Year
- 2020
- Fuel type
- Diesel
- Body type
- SUV
- Engine
- 3.0 L
- Gearbox
- Automatic
- Power
- 322 bhp
- Seats
- 5
- CO2
- 169 g/km
- Colour
- Black
- Doors
- 5
- Driven wheels
- Four Wheel Drive
- Engine badge
- M40d
- Emissions standard
- Euro 6
About this car
At 76,891 miles, this 2020 BMW X3 has covered about 25,100 more miles than other 2020 BMW X3 cars. The dealer is asking £25,200, which is £428 below the AskCar estimate of £25,628. To work out the AskCar estimate, we analyse UK dealer adverts for 3,003 BMW X3 cars across different ages and specifications. This car was first seen in our listings data today. MOT records show an expiry date of 1 October 2027, and the latest recorded mileage is consistent with the advert. The seller is Marshall Motor Group Bexley Audi, based in Bexley.
Stock data as of 31 October 2026.
Price history
AskCar first saw this advert on 31 October 2026.
| Date observed | Asking price |
|---|---|
| 31 October 2026 | £25,200 |
Price and mileage comparison
Fair price: £428 (1%) under the AskCar estimate of £25,628.
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 3,003 priced BMW X3 adverts across different ages and specifications, as of 31 October 2026.
Advertised mileage is about 25,100 miles higher than the median mileage of a 2020 BMW X3 on AskCar.
The advertised mileage is consistent with the last MOT reading.
MOT
MOT: valid until 1 October 2027. 76,442 miles at the last test.
Other matching cars
8 other 2020 BMW X3 automatic diesel cars are for sale at UK dealers from £25,499 to £33,990, as of 31 October 2026.
The 5 cheapest:
- 2020 BMW X3. Price: £25,499. Mileage: 65,295 miles. Dealer: Halliwell Jones Warrington BMW in Warrington. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-ff94522b6a06
- 2020 BMW X3. Price: £25,950. Mileage: 72,000 miles. Dealer: Cambridgeshire Motor House in Peterborough. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-8cb865b40013
- 2020 BMW X3. Price: £30,440. Mileage: 65,000 miles. Dealer: Oakdene Collection in Alfreton. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-d20d73386a17
- 2020 BMW X3. Price: £30,980. Mileage: 48,000 miles. Dealer: Magari Automotive in Fareham. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-b41ea301e003
- 2020 BMW X3. Price: £32,993. Mileage: 52,703 miles. Dealer: Group 1 Bedford BMW in Bedford. AskCar page: https://askcar.co.uk/car/bmw-x3-2020-158bb3a94c5a
The 8 matching cars have covered 26,000 to 72,000 miles, compared with 76,891 miles for this car.
Matching year, trim, gearbox and fuel does not mean matching mileage or every specification. The AskCar estimate adjusts for these differences.
Browse all BMW X3 cars for sale · 2020 BMW X3 price guide
More like this
Photos
1 photo of this car is on its AskCar page.
How to contact the dealer and its opening hours are on this AskCar page.
As of 31 October 2026, AskCar lists 583,548 cars and vans from 12,716 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.