Porsche 928 Project Video #5: Replacing the HVAC Vacuum Solenoids Using BMW E23 Parts in 1988 S4

Video of the project to get a working set of 5 HVAC Solenoids - these are NLA from Porsche and frequently leak vacuum. Video of testing for vacuum as well as the replacement 1980s BMW 7 Series (E23) part #64 11 1 376 325 that is a direct interchange. Sorry for the goof in saying "accumulators" frequently - I meant "actuators". This should work with all Porsche 928 models that use this system.