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Doug

Cabriolet Rear Power Window

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Re: 1999 996 Cab

Although I can hear the motor running it does not raise the window. There is a light grinding noise that accompanies the motor operating. Can you guys let me know how to get access to the passengers side rear power window to check the motor, cables, etc. Thanks!

BTW this happened after the battery went dead and it was replaced with a new one.

Edited by Doug

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Does the clam shell move? If it does, but the top wont go up or down, you're hydraulic fluid may be low. Check previous forums for information on checking the adding hydraulic fluid. This is a common problem for older 996s. I have added fluid 3 times to my car. Got it down to a total of 15 min from start to finish. Easy to do.

Eric

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Thanks for your reply E Kap...However I could have explained this better. The problem is just the passenger side rear power window...further research has revealed this as the method to get in there...

http://www.renntech.org/forums/topic/23091-996-cab-rear-sliding-window-stuck-and-wont-close-or-open/page__p__120013__hl__%2Brear+%2Bwindow__fromsearch__1#entry120013

my question now is whether the regulator for this window includes the motor and regulator in a single unit? I'll continue the search to learn the answer or if anyone can help please post here...thank you

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The quote from local shops was 800 to 1100 to replace the regulator/ motor. I found a qualified independent entrepreneur who is developing a franchise for mobile power window repair. 400.00 out the door and I never left the house.

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Having exactly the same problem.

I already removed the side cover, I am trying to figure out how the whole regulator comes out....will attempt to fix.

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Removal

post-1-0-33238100-1315323351_thumb.png

Convertible top in service position.

1. Removing side-panel lining -1-.

2. Remove front and rear fastening screws -2- from the convertible top support and the mount for the belt guide section, and pull rear side window inner seal -3- up and out.

3. Press the micro-switch -4- in the windscreen frame and actuate the rocker switch -5- at the same time.

4. Release adjusting elements with the adjustment tool -7-. To do this, loosen and unscrew the nuts -6- from the adjusting element.

Caution!

Damage to or destruction of the convertible top when the convertible-top support is removed!

- The convertible top must not be electrically operated when the convertible-top support is detached.

5. Remove fastening screws -2- and fastening nut -8- from convertible-top support -10- and pull the deflection fitting and mount for the belt guide section -9- up and out. Pull convertible-top support -10- inward and fix between B-pillar and the convertible-top support with a spacing block -12- dimension - A = 30 mm.

6. Push rear power window -11- upward and push both locking tabs of the electrical connection -13- outward and disconnect.

Installation

post-1-0-01818400-1315323579_thumb.png

1. Connect electrical plug connection -13-, insert power window -11- into the window shaft from above and position in the mounts in the inner side section.

2. Remove spacing block -12- between B-pillar and convertible top support -10-, Position fastening screws -2- and fastening nut -8- in convertible-top support -10- and tighten, Tightening torque 23 Nm (17 ftlb,) Push deflection fitting into the mount for the belt guide section -9-, Screw in and tighten fastening screws -2-. Tightening torque 50 Nm (37 ftlb.)

3. By moving the power window -4- with respect to the longitudinal axis of the vehicle, the power window can be adjusted by dimension -Y = ± 10 mm-, The contact pressure of the side window upper edge on the convertible-top is adjusted by screwing the lower adjusting element -A- in or out by dimension -X = ± 10 mm-, The contact pressure

on the rear window inner seal or the offset from the door window is adjusted by screwing both of the upper adjusting elements -B- in or out by dimension - X = ± 5 mm-, Step 1: -Figure 3- Adjust the basic setting of the adjusting elements -B- of the top edge of the rear side section relative to the side window, -Dimension C- Front top edge of rear side section = 11 mm -Dimension D- Rear top edge of rear side section = 14 mm Step 2: -Figure 3- Push the power window backward or forward and adjust the gap between the side window and door window to -E = 9 mm-, Step 3: -Figure 4- Adjust the contour or the offset from the door window at adjusting element -A-, Tighten adjusting elements -A- and -B-, Tightening torque 23 Nm (17 ftlb.)

4. Insert rear side window inner seal -3- into rear side section slot and position on the convertible-top support or mount for belt guide section, Screw in and tighten fastening screws -2-.

5. Install the side panel.

Additional instructions for adjusting or replacing the rear power window

The rear power windows can be operated:

- If the convertible-top is closed.

- If the ignition is switched on.

- If, after the ignition is switched off, the ignition key is not removed from the steering lock.

- Between switching off the ignition and opening a door for the first time.

- If a door is open; U.S. vehicles do not have this function.

1 - Standardizing the system

The system must be re-standardized after an interruption in the power supply to the power window electronics. To do this the convertible top must be closed. Position-controlled lowering with convertible-top actuation and enabling for "automatic start-up" of window closing and opening are redefined. The standardization process is initiated by continuous actuation of the operating button in the "Close window" direction. To do this, the convertible top must be closed or the hardtop must be fitted. The button must be held until the window is closed and is switched off by the blockage detection function of the power windows.

2 - Blockage detection function!

If the window drive encounters resistance when activated, the motor is switched off after a delay of 500 ms. If the rocker switch is pressed again within 10 seconds, the side window closes the power window with all of its closing force. The anticrushing protection is deactivated.

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Follow-on question for this:

 

1. my regulator is broken in the down position, which means I can’t access the front of the regulator mounting bolt. The lower nut holding the window is basically inaccessible; it’s a very tight gap and because of the rubber and such I can’t get an angle on the nut. The regulator is sufficiently stuck that I can’t pull the window up by hand. Any pointers?

 

2. I lost a wrench down the side of the body and it seems to have gone under the rear seats. Any pointers on getting it back?

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Remove the motor from the reg then u can move the window by hand. Use a magnet to get wrench

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