tredi

Thanks a lot. Actually dealer unclogged firewall drains which were full of leaves. Unfortunatelly did not accept my complaint. I've found visual picture describing sunroof  drains and they looks like they ended under wheel wells.

Recently I had problem with several warnings (brake proportional, psm failure, abs failure) and it turned out that one of the wires hided in

driver footwell was corroded due to water leak in that place (well known problem). The water drains in firewall were clogged by leaves and dirt.The water was also collected under engine fuse box. It was repaired in Porsche service, all carpet was removed, drains were unclogged, also AC drain was checked. About few weeks later after rainy wheater I've noticed that driver and passenger carpets are wet again. What is going on? I've red about possible sunroof drain problems but  couldn't find how exactly get access to check them. Are there any other places that should be checked. Any help appreciated.(Cayenne 3.2 2004)

I disassembled the unit and found oxygen corrosion on PCB trace (see enclosed file), I cleaned it but still no effect. Maybe a rotary knob works a little better but still slow skipping through menu. BACK switch and SET switch doesn't work. Maybe I should apply some kind of conductive paste on the rubber end of switches?

Hello,

I have a problem with PCM in my Cayenne 2004, the right rotary knob doesn't work properly (can't select menu items  or skip several menu items when only 1 turn etc.) also SET and BACK switch doesn't work. Other switches work fine. Any ideas?