: Mechanics often post videos or photo sequences of using a 9V battery to trigger the solenoid, checking for that healthy "click" sound. Pan Magnet Inspection
For detailed step-by-step guides and community-sourced photos, check out the forums at Bimmerforums or Ford Truck Enthusiasts for model-specific transmission hacks. tranny trick pictures
If you drop the transmission pan, the magnet is your best storyteller. : A fine gray "fuzz" on the magnet is expected. : Mechanics often post videos or photo sequences
: Photos usually show the disconnection of the return line to pump out old fluid while simultaneously pouring in the new. Cleaning the Solenoids tranny trick pictures