Description
Application and selection
Yanhua ACDP-2 expansion kit BMW ECU A51C is intended for professional work on the BMW ECU A51C configuration. Car Diag Croatia, an authorised Yanhua distributor, helps verify the required function, matching adapter and software licence before ordering.
interface board function:
1: Support BMW N20/N13/N63/S63/N55/B38 DME bench mode read/write ISN (requires Module 3 authorization).
2: Support BMW N20/N13/N63/S63/N55/B38 DME bench mode clone (requires ECU clone authorization).
interface board feature:
1:No need to open the DME shell.No need to drill the hole.
2:Plug and play,Simple and efficientPrevent wrong plug,Safe and reliable.
Overall connection diagram:


APP operation interface:


Read N20/N13/N63/S63 ISN ▼


Read N20 ISN ▼


Read N38 ISN ▼


What does this mean in the workshop?
Data transfer is useful when replacing a supported controller. It does not repair a hardware fault or make different hardware versions interchangeable. Compare both controller identifiers and retain the original backup before service work.
Application scope
- Data reading and transfer when replacing a compatible controller.
Technical overview
| Offer type | expansion kit |
|---|---|
| System / configuration | BMW ECU A51C |
| ACDP platform | ACDP-2 |
| Vehicle brands | BMW |
| Licence identifiers in this configuration | A51C |
| Connection method | Bench |
Before ordering
This is an ACDP expansion, not the base programmer. Operation requires a compatible host, the appropriate interface and an activated licence for the selected function. We check your existing equipment and the additions required before ordering.
Compatibility review
Send the vehicle model and year, ECU, TCU or IMMO identifier, required function and the serial number of your existing ACDP unit. Support depends on the specific controller, hardware and activated authorisations; the vehicle brand alone does not establish compatibility.
Request a quotation and compatibility check
Official Yanhua resources
For qualified professionals working with the vehicle owner’s authorisation. Retain original data and a service record. Work on security and memory systems should follow the official documentation for the exact controller.











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