BMW 3 Series B47D20B Engine ECU Set with Key & BDC – 2019 320d RHD

If you’re dealing with ECU faults on your BMW 320d, this complete set can save you time, money, and a lot of frustration compared to sourcing parts separately.
This is a genuine BMW engine ECU set removed from a 2019 BMW 3 Series (G20) 320d RHD Automatic, running the B47D20B 2.0 diesel engine. The set includes the BMW engine ECU, BDC, and key, all matched from the same donor vehicle, which makes it a far cleaner solution than mixing modules from different cars.
With 40,964 miles on the donor vehicle, it’s a sensible option for repairs following ECU failure, water damage, or communication faults, as long as your vehicle specifications match.
Important details:
Genuine BMW engine ECU set
Engine code: B47D20B
Donor vehicle: 2019 BMW 320d (G20)
Drivetrain: RHD Automatic
Fuel type: Diesel
Mileage: 40,964 miles
Part numbers: 9855853 / 8475468
Includes: Engine ECU, BDC & key
Price: £424.17
Please note:
Your engine code and capacity must match exactly
This is not a plug-and-play item
Coding is required after installation


A great, genuine solution if you want the car fixed properly, without taking risks on unknown modules. Please review warranty terms before purchasing and confirm compatibility if you’re unsure. Please find more information on mtautoparts.com and more BMW ecu options for sale.
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