Passenger Window Down with handle but not going up when shut

[Roborat]

 

I just resolved a window issue on my 2007 Porsche Cayman and wanted to post and help out anyone with a similar issue. My passenger side window was functioning normally except for when I closed my door the automatic window drop to clear the door seal was not returning to the complete up position and was staying down. The automatic up feature on the window was also not working. The auto-down feature worked and all other functions of the window performed normally.

So to be clear, when you pulled the exterior and interior door handles the widow dropped the 10mm or 1/4 inch it should. However, upon shutting the doot the window would stay down in this position and not return up. So....

I decided to do some research and came across the "latch micro switch issue".. I figured hey part isn't that expense so I replace the latch and the issue remained. After much more research, I came across a post about that issue being caused from a faulty door motor ECU. This IS the reason for the issue. After, disconnecting the battery, taking off the door panel using numerous videos and instructions from this site and others I was able to quickly replace the motor unit with a new one that I got on ebay for $120. The motor is easy to remove, 3 screws and then just pull the motor straight out and it will disconnect from the window regulator. Next, pop in the new one and you are good to go.  Finally, the issue was resolved upon reconnecting the car battery and the motor auto cycled up and down and is now functioning normally. I wanted to post this as I am hoping someone else who does a google search for a similar issue will find this and save them hundreds if not a thousand dollars from taking the car to a Porsche dealer. The part number for the motor that I used to replace the current window motor was 997.624.182.06 replacing the original part that was 997.624.182.03

[deilenberger]

Would I be correct in assuming you had to teach the new motor the end positions of travel of the window (so it can do 1 touch up and down)?  That's where you press the up button and hold it when the window is all the way up (I think you hold it for 15 seconds or so) and then you do the same for down.

 

Had you tried the procedure before replacing the motor? IE - done the teaching to the old motor?  The passenger's side only does auto-close if the window is more than 50% closed already (according to the Porsche manual) - but if it somehow lost calibration for the actual fully closed position, it might behave as you described.  If the new motor was calibrated (it works by measuring the current draw from the motor - when it's stalled - fully up or down the current draw increases and that's what's remembered to set the position) - when you installed it it would then obviously work fine and fully close when the door was closed.

 

The only reason I'm asking is I have seen instances where a fault is cured by replacing a part - where the part wasn't defective, but the replacement of the part fixed something else when it was being done.  I'd suggest before buying a new motor - if people come across this - that they try first before replacing anything - try to teach the motor where the limits for up and down are. If that fails - then I'd be looking at the motor.