powertrain

Does anyone have a diagram of the powertrain components and their logical connections? It would be helpful to have a map of how drive units and controllers connect to each other and a bonus if there’s any additional CAN data. For context I just want to understand the differences between the...

Hi: My 2019 M3 AWD is developing a disturbing cracking sound around front left wheel / fronk / suspension area. I've been having this concern over the last half year, went to service center twice, and they said it's "normal interior trim noise as vehicle gets older". I've attached a short video...