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Hi, this problem normally occurs by water entering the rear wiper cover and ultimately through a poorly sealed microswitch housing. There was a campaign and then a campaign to replace that one. If you dont use the glass that often then do the following: open the glass, remove the plastic cover around the glass side locking pin. there is a smal electrical connection in there. Unplug the connection, refit the cover and close the glass. It wont open again unless you use the remote control on the key. If you want to fix it properly, go to the dealer and purchase the latest part number microswitch. usually the part number changes when the part has been improved. from latter 05 onwards this issue was resolved. Let me know how you get on.

Thanks for the instruction, I disconnected the plug, but it still show the warning sign on the dash, after went over a bump. Any ideas ?

thanks again

Hi, did you insulate the plug? Does the glass open when the light comes on?

No, I just unpluged them and yes, the light came on.

Any input please ?

thanks

Hi, this problem normally occurs by water entering the rear wiper cover and ultimately through a poorly sealed microswitch housing. There was a campaign and then a campaign to replace that one. If you dont use the glass that often then do the following: open the glass, remove the plastic cover around the glass side locking pin. there is a smal electrical connection in there. Unplug the connection, refit the cover and close the glass. It wont open again unless you use the remote control on the key. If you want to fix it properly, go to the dealer and purchase the latest part number microswitch. usually the part number changes when the part has been improved. from latter 05 onwards this issue was resolved. Let me know how you get on.

Thanks for the instruction, I disconnected the plug, but it still show the warning sign on the dash, after went over a bump. Any ideas ?

thanks again

Hi, did you insulate the plug? Does the glass open when the light comes on?

No, I just unpluged them and yes, the light came on.

Hi, this problem normally occurs by water entering the rear wiper cover and ultimately through a poorly sealed microswitch housing. There was a campaign and then a campaign to replace that one. If you dont use the glass that often then do the following: open the glass, remove the plastic cover around the glass side locking pin. there is a smal electrical connection in there. Unplug the connection, refit the cover and close the glass. It wont open again unless you use the remote control on the key. If you want to fix it properly, go to the dealer and purchase the latest part number microswitch. usually the part number changes when the part has been improved. from latter 05 onwards this issue was resolved. Let me know how you get on.

thanks again

:welcome:

Go to your dealer and ask them to perform TSB W501 - Rear Window Adjustment (Quality Improvement Workshop Campaign).

You might want to have them check and see if other Workshop Campaigns have also been performed.

Pardon me , please tell me what is "Quality Improvement Workshop Campaign" , my is a cpo used car ,is it still under warranty?

thanks again

The "Quality Improvement Workshop Campaign" was a series of fixes that were applied to early Cayenne's. Dealers were supposed to apply these updates/fixes at the next service.

Depending on your VIN and your car's options there could be up to 40 Workshop Campaign fixes that should have been applied.

If you have a CPO then they should have done these before they delivered the car to you. If they did not then they owe them to you.

I talked to the dealer, they said for the rear windows, the Quality Improvement Workshop Campaign only apply to 03 but not 04.

any suggestion? can I fix it myself?

thanks

:welcome:

Go to your dealer and ask them to perform TSB W501 - Rear Window Adjustment (Quality Improvement Workshop Campaign).

You might want to have them check and see if other Workshop Campaigns have also been performed.

Pardon me , please tell me what is "Quality Improvement Workshop Campaign" , my is a cpo used car ,is it still under warranty?

thanks again

My 04 Cayenne S rear hatch glass windows always pop opened when go over bump, how do I fix it ?

thanks in advance.