doorglass gremlins

passenger door glass drops down 10mm when handle lifted,then goes back up when handle released,causing glass to hit roof trim.tin top rhd..thanx

A microswitch has gone faulty. http://www.renntech.org/forums/tutor...microswitches/

My '06 Cayman S is doing the same thing. Sometimes (not often) the glass will drop when opening the door but as soon as you release the handle it goes back up. There are a few odd traits that have me puzzled: - it only happens when you are using the outside handle never the inside one - if it does happen you can make the glass go down just by pulling up on the handle, but if you release it the glass goes back up - you can get the glass to drop down to the proper position by pushing the latch on aft side of the door just a little bit toward the closed/locked position with your finger. This is what we do when it happens in order to prevent damage to the window when we close the door - it appears to only happen when you pull the outside handle up ALL the way. If you pull up on the handle only far enough for the door to open it never happens. There are two micro-switches that control the window. One is part of the handle linkages (inside and outside) that tells the window to drop down when activated. This one can be purchased separately for ~$35. The other is inside the door latch assembly and can't be purchased separately. You have to purchase the entire latch assembly for ~$180. Though I have heard of someone that purchased a micro-switch from an electronics supplier, disassembled the latch and replaced the switch. I think in my case the outside handle is causing over travel of the door latch micro-switch which fools the computer into thinking the door is closed and it is okay to roll up the window. This is why I can return the system to normal by pushing the latch back toward the latched/closed position. I know both micro-switches function as they never fail to operate when I activate them. Ultimately I think my problem is due to some mis-adjustment of the linkage at the outside handle.

Temp solution could be using the key to slightly roll the windows down when unlocking by holding the key in the unlock position. Then before getting out roll it don enough then when locking hold the key in the lock position to roll it up tight. Make sure when using the key to roll up that you do it during the initial lock twist or you will be double locking the door that I think disarms the alarm or something.

I think i have a smimilar issue. When i pull the handle to open my door, the window drops to allow me to open the door. However as soon as i let go of the handle (even thought the door is open), the widow goes back up again ! If i slowly close the door, when it is literally almost closed, catch is pretty much touching, the widow drops again to allow me to close, or if i hold the handl open it also drops... Anyone any views on what microswitch this could be ? Andy

One of the switches in the door lock electro mechanical assembly (the piece in the door that latches with the striker on the body). Check the link Logray posted above. Membership in Renntech is worth the info.

Quotes source post: 9724673

Yeah, to fix this issue you need the most expensive of the mechanisms that control these functions. There are 2 small microswitches, one controls dropping the glass from the interior door handle, the other small microswitch controls the the functionaly of the exterior door handle. You don't need these microswitches. You need the main lock assembly switch which is the largest, most expensive, and most difficult to replace. That is responsible for keeping the glass down once the door handle is released and sending it back up once the door it shut.