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986 Drivers window issue

gonzosquidgy

gonzosquidgy

New member
Hi all, my son has just purchased his first Porsche Boxster (at age 20, I am very proud of his achievement) and the driver's door window does not drop when opening the door.
I am sure I have had this issue with a previous Boxster but can't remember the outcome.
is it a faulty window sensor or stretched cable?
Your suggestions would be most welcome or a link to possible previous posts.
Thank you
John
 
Does the window fail to drop when pulling the inside or outside handles, or does it drop and then go straight up when you release the handle? Any beeps from the alarm horn when locking and unlocking?

If it doesn't drop at all pulling the outside handle only, the problem is with the outside handle microswitch. If it doesn't drop at all pulling the inside handle only, the problem is with the inside handle microswitch.

If it drops and goes straight up with either handle, the problem is with the microswitch in the door lock mechanism which senses if the door is open/closed. The system thinks the door is permanently closed, so goes straight back up

If it doesn't drop at all with either handle, then it is most likely the microswitch inside the door lock mechanism which senses if the car is locked/unlocked. The system thinks the door is permanently locked, so will not lower the window.

There are 7 microswitches in each door. One on the inside handle, one on the outside handle, and 5 inside the door lock mechanism.
 
Had same issue with my 987 on passenger door. Micro switch on outside door handle needed replacing. All works fine now.
 
Richard_Hamilton said:
Does the window fail to drop when pulling the inside or outside handles, or does it drop and then go straight up when you release the handle? Any beeps from the alarm horn when locking and unlocking?

If it doesn't drop at all pulling the outside handle only, the problem is with the outside handle microswitch. If it doesn't drop at all pulling the inside handle only, the problem is with the inside handle microswitch.

If it drops and goes straight up with either handle, the problem is with the microswitch in the door lock mechanism which senses if the door is open/closed. The system thinks the door is permanently closed, so goes straight back up

If it doesn't drop at all with either handle, then it is most likely the microswitch inside the door lock mechanism which senses if the car is locked/unlocked. The system thinks the door is permanently locked, so will not lower the window.

There are 7 microswitches in each door. One on the inside handle, one on the outside handle, and 5 inside the door lock mechanism.
Click to expand...
Have you ever had one of those times when you wish you hadn't read a forum post? I'm gonna suffer sleepless nights worrying about micro-switches now! ????
 
The microswitch clicks on both inside and outside handles which suggests it is engaging so I assume not faulty micro.
Window just moves but doesn't drop so could it be a stretched cable?
Thanks
 
When the microswitch clicks, can you hear a sound from the window motor?

An easy way to check for slack in the regulator cables is to lower the window about half way, grab hold of the window, and pull it up and down. It shouldn't move more than a couple of millimetres. If it does, the cables are stretched.

If there is no play in the cables, and you wanted to be sure, get a diagnostic check done. A Porsche tester will tell you if the switches are working (they may click, but have dirty/broken contacts inside) and will also show any errors in the fault memory.
 
Hi Richard
Very informative as always,
Am I correct in assuming this topic relates to the 996 also.
 
Hi Andy. Yes it does. There is a write-up on the microswitches in the 996 Technical Articles section too. The only difference between the 986 and 996 is that the 986 has a nylon stop on the regulator to stop the window going too low in the door. Otherwise, the regulators are exchangeable.
 
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