How to change transmission fluid and filter on bmw 328i, step by step 

The problem is solved, I replaced transmission and refilled it with new fluid, now it works perfect, it looks like the gear clutches were bad or the oil pump, because on previous tranny it only took 6 quarts but on the different tranny it took 7 quarts. In my case I tried replacing mechatronic, or solenoids, it was no help. You can watch my other videos replacing mechatronic and solenoids, also another video, replacing transmission