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Window Regulator Replacement / Window Switch Replacement / Window Motor Replacement
 
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Pelican Technical Article:

Window Regulator Replacement / Window Switch Replacement / Window Motor Replacement

Time:

1 hr

Tab:

$235

Talent:

***

Tools:

Torx driver set

Applicable Models:

Porsche 986 Boxster (1997-04)
Porsche 986 Boxster S (2000-04)
Porsche 987 Boxster (2005-12)
Porsche 987 Boxster S (2005-12)

Parts Required:

New window regulator and motor

Hot Tip:

Clean the window and regulator channels carefully prior to the reinstallation

Performance Gain:

Smooth, reliable window operation

Complementary Modification:

Replace lock assembly, mirror switch
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Have you gotten tired of having to open your door and get out to retrieve your burger at the drive thru window? Is your roof stuck up because the window is broken and the car won't let you open the roof without the window rolling down? Perhaps it's time to replace or clean your window regulator, or install a new power window motor. Not much is better than driving in your Boxster with the roof and windows down on a nice sunny day. Having a broken window regulator can surely put a damper on that.

The first step in replacing either the regulator or the power window motor is to remove the door panel (see Pelican Technical Article: Door Panel Removal / Mirror Switch Replacement). Make sure that you eliminate the power window switch as a potential problem before you start tearing into your door (see Figure 1). Double-check all the fuses that control the power windows, and swap out the relays to make sure that there isn't a problem with them. If one of the windows works and the other doesn't, then chances are that it's the window motor or the window switch. The switches themselves are often faulty, which can sometimes make this an easy fix. Test the switch by removing it from the center console, and swap it with one that is working. If there is any noise coming from the door (clicks and whines) and the window isn't moving, then it's quite obvious that the motor is fine, but the regulator needs to be repaired. If your window is not dropping down when you pull open the door handle, then you probably have an issue with the electrical switch that is integrated into the handle itself. See Project 78 for more details on replacing the handle and that switch.

For details on removing the door panel, see Pelican Technical Article: Door Panel Removal / Mirror Switch Replacement. When you have the door panel removed, you can view the regulator. With your fingers clearly out of the way, roll down the window until it's about 75% of the way down. Observe what is happening: the goal here is to figure out if the motor or the regulator needs replacing. If there is no movement, then the motor is suspect. If the motor moves, or clicks, then your regulator probably needs to be replaced. Remove the motor (Figure 4), and then the regulator (Figure 5).

With the regulator detached from the doorframe and the window, you should test the motor. With your hands out of the way of the motor, carefully press lightly on the window switch and see if the motor moves properly. If the motor doesn't move at all, then it probably is worn out, assuming that you've checked the window switch (check the voltage to the motor when you press the window switch to see if it's getting 12V).

Before you reinstall the window, I recommend that you inspect and replace the front window channel guide if it's worn. This is the channel that guides the front of the window as it is raised and lowered by the regulator. Also worth replacing are the window slot seals if they are worn out. These inner and outer "window scrapers" keep water from dripping down into the recesses of the door. You should also grease all of the moving parts of the regulator: the slides, the motor, the gears, etc.

Before you close everything up inside your door, it's a wise idea to test the proper operation of the window. With your fingers clearly out of the way, hook up the power connections to the window motor, and try to raise and lower the window. Also verify and adjust the stop positions of the window once you have reinstalled the regulator (see Figure 6). There are screws located on the regulator that control these stop positions. If the power is disconnected from the car, the power windows lose their reference point for the closed position and need to be re-initialized. With the convertible top fully closed, press the up button on each window and then continue pressing down for about five more seconds.

The first step in checking the proper operation of your window is to verify that the window switches are working.
Figure 1

The first step in checking the proper operation of your window is to verify that the window switches are working. Remove the two screws in the coin tray (inset), and then pull out the assembly. If one window works and the other does not, try swapping the switches with each other. Replacement is easy, they snap out the back (in the direction of the green arrow), after releasing the tab inside with a small screwdriver.

Here's a photo of a brand new regulator.
Figure 2

Here's a photo of a brand new regulator. Compared to the "old days", modern window regulators are an advanced design, incorporating the cables, gears, and rails into a single assembly. The blue arrow shows where the motor bolts to the regulator. The white arrow points to where the lower edge of the window mounts to the regulator. The orange arrows show the adjustment / tightening screws for the window clamps. The purple arrow shows the height adjustment points for the window (see Figure 6).

Shown here is the procedure for window removal.
Figure 3

Shown here is the procedure for window removal. Raise the window all the way up and stick a screwdriver in the door latch mechanism to trick the car into thinking the door is fully closed. This will keep the window in the top elevated position (see Frame A of Figure 6). Pry off the rubber plugs that cover the access holes (green arrow). Loosen but do not remove the two window clamping screws (yellow arrow). Finally, pull the window up out of the door (purple arrow).

Removal of the window motor is fairly easy.
Figure 4

Removal of the window motor is fairly easy. Disconnect the electrical harness connection (blue arrow). Then remove the three nuts that hold the motor to the door. Push the motor into the door and pull it down so that you can access the studs that you just took the nuts off of. Remove the three studs (purple arrow shows one of them): they are what hold the motor and the regulator together. Finally, pull the motor off of the regulator (inset photo, upper left).

With the motor disconnected and detached, removal of the regulator is a snap.
Figure 5

With the motor disconnected and detached, removal of the regulator is a snap. Disconnect the four mounting points for the regulator (green arrow) and it should slide out of the lower part of the door. On the very bottom surface of the door, you need to remove the two inner door plugs to reveal the mounting nuts (orange arrow).

Window adjustment can be a bit tricky.
Figure 6

Window adjustment can be a bit tricky. A- Trick the door into thinking it's closed by putting a short screwdriver into the lock mechanism. The window should raise about 12mm. B- With the roof up, push the door near to being closed and measure the distance that the top of the window is located above the bottom edge of the seal. This should be about 2mm or so. C- Make sure that the glass is aligned properly left-to-right in the holding clamps. The edge / corner of the glass should be aligned with the edge of the aluminum clamp (purple arrow). To align the left-right angle of the window, use the slot indicated by the green arrow (only the rear slot is adjustable). D- Check the distance that the window sits into the seal by using small pieces of Post-It notes affixed to the window. Open the door and measure the distance from the top of the Post-It notes to the top of the window. This should be about 4mm. E- Adjust the window height by removing the outer plugs in the bottom of the door and using an E6 Torx socket to turn the stopper (counter-clockwise = higher window). F- Check the window rake angle by placing a sheet of paper in the window and rolling it up. You should not be able to remove the paper. Adjust the rake angle by moving the position of the two lower mounting studs for the regulator, in the slots in the door (remove the inner lower door plugs to access these).

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Comments and Suggestions:
Newenst Comments: I have a 1997 Porsche boxster and I'm having troubles where my window does not go down. It stopped working after my battery died and I installed a new battery. I replaced the window regulator a couple months ago and a tech at an import shop told me my window motor is bad. I got a new window motor and installed it but my window still doesn't go down. Any tips or ideas? The power window fuse is fine, is there another fuse or is there just one? Thank you in advance.
November 2, 2016
  Followup from the Pelican Staff: When you operate the switch, does the motor get power and ground? - Nick at Pelican Parts  
Kevin Comments: Hi, I replaced the window regulator on my 2007 Cayman, adjusted the window so that it closes and seals properly. The window drops properly when the door handle is moved and moves up when the door is closed. After a couple of weeks the window moved backwards so that when the door is opening or closing the window rubs against the fixed glass window behind the door. I disassembled the door, and the rubber pieces in the clamp Figure 6, panel C that holds the window had shifted. I reset the rubber pieces, tightened the screws as much as I thought possible without cracking the window and readjusted the window. After a week the window again slid backwards so that it is rubbing on the fixed glass window. Is there a torque setting for the screws in the clamp that holds the glass? Or is something else wrong?

Thanks
October 16, 2016
  Followup from the Pelican Staff: There is a torque spec, unfortunately I do not have it to share.

Try adding blue threadlocker to the fastener. - Nick at Pelican Parts
 
neil Comments: 2000 Boxster. Passenger window will only travel up about three inches. Sometimes it will stay there, other times it will reach that point and automatically retract. I tried giving it a gentle tug up, but wont budge.
Any thoughts?
Thanks in advance.
September 19, 2016
  Followup from the Pelican Staff: Sounds like a faulty window regulator. - Nick at Pelican Parts  
sc Comments: My 1998 boxter passenger side window does not drop when either the inside or outside handle are pulled, but I can hear sounds in door like it's trying to drop. I cannot push the window down so I don't think it is the regulator. Could it be the inside and outside door handle switch that is faulty even though I can hear sounds in the door when the handles are pulled? The window switches open and close the window with no problems and no unusual sounds
April 13, 2016
  Followup from the Pelican Staff: if you hear it trying, the regulator is faulty. - Nick at Pelican Parts  
nccj72 Comments: I am having a similar issue on my 99 Boxster with my driver side window. When I pull the latch or handle the window drops but goes right back up causing the window to catch on the molding then having to pop it in by hand after I close the door. The passenger door window drops until the door closes then pops back up the way it should. What does this sound like the issue could be? Thanks! Any help is greatly appreciated.
April 12, 2016
  Followup from the Pelican Staff: This is likely the switch in the door latch. Try cleaning and lubricating the door latch. - Nick at Pelican Parts  
aaron Comments: My 2006 boxster is at a auto electricions at the moment, my passenger window doesnt always go back up again when the the door is closed, i also get a flat battery every time i leave the car standing for more than 24 hours, they seem to think its the window module causing this based on previous similar VW issues, does that sound right to you?
April 2, 2016
  Followup from the Pelican Staff: The issue may be in the door latch switch. If the door isn't seen shut, the window will bot close. - Nick at Pelican Parts  
souch Comments: Is there any specific type of grease that should be used for the windows?
April 1, 2016
  Followup from the Pelican Staff: No. - Nick at Pelican Parts  
Tony Comments: Ok so I have a 2000 Boxster and am having a few window issues. The passenger side window works normally with the button but does not automatically roll up or roll down when you open/close the door. In addition, the driver side window does not work at all. When I try to use the button, you can here things moving in the door but the window will not move. You can push the window down but does not drop into the door or anything like that. Help is appreciated!
March 9, 2016
  Followup from the Pelican Staff: Sounds like the driver side regulator is faulty. I would replace it. Once replaced, initialize the windows, that should cure the passenger window issues. - Nick at Pelican Parts  
tmendo Comments: I meant to say that the key Should Not be in the ignition when disconnecting the airbag.
January 28, 2016
  Followup from the Pelican Staff: Got it thanks. - Nick at Pelican Parts  
tmendo Comments: I am pretty sure that I need to replace the window regulator on my 2004 Boxster because the auto-drop is not working. I still am not clear if I have to disconnect the battery before I go into the door and remove the airbag. I have read elsewhere that it is not necessary, but that I should not have the key in the ignition when I do remove the airbag. What do you think?
Thanks.
January 28, 2016
  Followup from the Pelican Staff: Have battery disconnected and key out of ignition. - Nick at Pelican Parts  
bcage Comments: I want to ask a question before I buy the regulator. I have a 2004 Boxster S. The passenger window will not drop as required when the door is opened. Looking at it, it sounds like the motor is trying to drop the window, but no dice. When the door is opened, you can press the top of the window down and it goes to the right position. Once the door is closed, the window raises appropriately. Otherwise, the window works fine opening or closing.

In my mind, I thought maybe the window itself was not seated well in the regulator what do I know; that is what it acts like. I opened the door up and that was not the answer, but what I did see was that the cable in the regulator toward the front of the door was much looser than the one in the rear. Playing with it, I was able to temporarily reduce the slack and that seemed to resolve the problem. Unfortunately, there was no apparent way to permanently enact this change.

My guess now is that the regulator has to be replaced. Is that the case, or is there a method to adjust that I am just not aware of?

Thanks for your help.
January 23, 2016
  Followup from the Pelican Staff: Sounds like the regulator to me. If it drops when pushed on, usually it is faulty regulator. - Nick at Pelican Parts  
carlos Comments: Thank you. Is the latch switch part of the door lock? Do you have a part number for this on a 2003 986 S, driver side?
October 15, 2015
  Followup from the Pelican Staff: Part of the door latch. I’m not the best with part numbers.

Give our parts specialists a call at 1-888-280-7799. They can figure out what part or repair kit you need.
- Nick at Pelican Parts
 
Carlos Comments: Correction: I see that in an earlier response you were suggesting cleaning and lubing the door latch not the microswitch. Question still stands, although I'll extend it to both door latch and microswitches
October 14, 2015
  Followup from the Pelican Staff: Sounds like the latch switch is faulty. You can trying cleaning it, but if switching when door is open, cleaning may not help. - Nick at Pelican Parts  
Carlos Comments: 2003 986 S. Drivers side window will drop down appropriately but about half the time the glass will pop up before the door is closed. If I pull on either the inside or outside door handles the window will drop down again and I can pull the door shut. In some of the earlier responses I have seen you suggest cleaning and lubricating the microswitches. Is this something that can be done without opening up the door? Is it possible to spray contact cleaner from the outside of the lock and then lube it in a similar manner? Would WD-40 be appropriate for lubing it?
October 14, 2015
  Followup from the Pelican Staff: Sounds like the latch switch is faulty. You can trying cleaning it, but if switching when door is open, cleaning may not help. - Nick at Pelican Parts  
Louie Comments: Nick: Thanks for the response.
August 28, 2015
  Followup from the Pelican Staff: No problem. - Nick at Pelican Parts  
Louie Comments: I have a 1999 Porsche Boxster that needs the passenger side window regulator replaced. Do I have to reprogram the airbag and window after installation? Thanks
August 21, 2015
  Followup from the Pelican Staff: No, only clear fault codes if the light is ON. - Nick at Pelican Parts  
Louie Comments: When I remove and reinstall the passenger door airbag, does it need to be reprogrammed?
August 20, 2015
  Followup from the Pelican Staff: Not usually. But you didn't mention what vehicle you have, so can't be 1005 sure. - Nick at Pelican Parts  
Tayls77 Comments: The passenger window on my 07 Boxster S seems to work correctly other than it kind of slams when it reaches the top or bottom limits sounds like metal hitting metal. Would this be a regulator issue? - Thanks
July 3, 2015
  Followup from the Pelican Staff: Most likely, yes. - Nick at Pelican Parts  
Mike Comments: Hi, My 97 Boxter drop window down when closing roof, and it wont coming back up. When roof is down everything works fine. Could u help me with this problem.
June 26, 2015
  Followup from the Pelican Staff: Could be a microswitch stuck in the wrong state. Check the status of the microswitched, especially at the windshield.- Nick at Pelican Parts  
Kinnick4Ever Comments: Should have added that it now makes a grinding noise not present before in addition to the half-drop issue which hasn't been solved by "re-training."
May 28, 2015
  Followup from the Pelican Staff: SOunds like the regulator is faulty. - Nick at Pelican Parts  
Kinnick4Ever Comments: So I'm trying to sell my otherwise perfect 2000 base Boxster and stupidly slipped a laminated "For Sale" sign in the passenger window. Of course it fell inside the door, out of sight, when I accidentally lowered the window. Arrggh. Was able to get the now fragmented "For Sale" sign removed without taking off the whole door panel but now the window drops halfway when it should drop 1/4 inch or whatever. With a couple of tries finesse, I can get the window to remain up closed. However, when I open the passenger door from outside, it drops halfway. A real nuisance. Seems like a window regulator issue, right? I'm tempted to order a replacement regulator but what do you think? Also, seems dumb to ask, but the "right" side regulator means passenger side, correct?
May 28, 2015
  Followup from the Pelican Staff: Certainly does sound like the regulator, and the right and left is always as you are sitting in the car so, yes here in the states right means passenger. - Casey at Pelican Parts  
Iggy Comments: The drivers window is not working on my 2005 Boxster 987. For a while I struggled putting the window up which meant playing with the switch for ages. Now it doesn't move then door is open or roof goes down. I hear a noise when I press the switch but nothing happens. Any ideas?
May 17, 2015
  Followup from the Pelican Staff: Most likely the window regulator is faulty. I have seen though that they get bound up. To try and unbind the window, open the door, grab the top of the window, press downward and it should move an inch or so, then pull it up. Go back to the window switch and see if the window moves. If it does you should plan to replace the window regulator in the near future.
http://www.pelicanparts.com/cgi-bin/ksearch/pel_search_2014.cgi?SUPERCAT_FLAG=Y&make=POR&Context_make=&please_wait=N&LastVisited_input=1055&Previous_Section=Electrical&forumid=&threadid=&command=DWsearch&description=98754207500&I1.x=0&I1.y =0 - Casey at Pelican Parts
 
johan Comments: Help. Both my windows suddenly got down whilw I was driving. It didnt work to get them up, but down worked, They are stll down, What can I do?
April 19, 2015
  Followup from the Pelican Staff: What vehicle are you working on? Can you hear the window motors running? - Nick at Pelican Parts  
Jim Comments: The window gremlins have invaded my 97 Boxster. Just replaced the driver side regulator. Now, when the window reaches the top it automatically goes down to the top opening position. I have no dropdown when the door latch is pulled from inside or out. And no auto up or down. I've rechecked the adjustment and re-initialized the window. All features worked properly before I replaced the regulator. Could it be the pins in the connector for the motor didn't seat properly? Any ideas?
March 29, 2015
  Followup from the Pelican Staff: Sounds like something like that, I know if the door latch doesn't provide the proper inputs the windows will operate erratically. Another issue might be the convertible top latch switch. Try to observe the dome light operation as well as the passenger window operation. If only the driver side is acting up better remove the door panel and make sure the wires are routed properly and completely plugged in. - Casey at Pelican Parts  
frank Comments: i see a lot of reference to the door latch microswitch - is this a replaceable part or is it part of the door latch assembly?
March 11, 2015
  Followup from the Pelican Staff: What vehicle are you working on? - Nick at Pelican Parts  
jimiv Comments: passenger window when you open the door comes down a little to alow for the topwhich is good , but when you let go of the handle it goes up , should not go up until you close the door like the driver side
February 16, 2015
  Followup from the Pelican Staff: Correct, there may an issue with the switch in the latch. Try cleaning and lubricating the door latch. - Nick at Pelican Parts  
ptp Comments: hi

hope you can help, drivers side window will not drop down when i pull the handle, I've changed the microswitch and d40 loads of different parts, but still no joy, I'm going to change to window motor swell, but any idea what it could be? if i open the door and push the window/glass downwards it will move and come back up, also the lock system doesn't work with the key, will that have anything todo with it? its a boxster 2001
February 12, 2015
  Followup from the Pelican Staff: It doesn't move when opened from the inside or outside handle? what you describe with pushing the window, sounds like the issue may be with the window motor or regulator. - Nick at Pelican Parts  
Jay Comments: Here's my Boxster window problem, the windows decided to just open one day, only to the top down position. They both operate down and up to the top down position. Top works fine. Both windows go full up only when using the car key. Is this a top control unit issue.
December 17, 2014
  Followup from the Pelican Staff: The top operates normally? Sounds to me like the latch switches may be malfunctioning.- Nick at Pelican Parts  
djmatthall Comments: hi , hoping you can help : just had a new regulator fitted to my drivers side window on my 986 boxster s 2002 , the window will drop fully with no problem and will rise to it's close position, it also drops slightly when opening the door and closes as it should so the motor is doing it's job fine . The problems are that i get a horrible squealing noise aswell as a slight struggle it eventually does get back up but as the window comes back up there are diagonal markings that look like the channel guide on my window potentially what's causing the sqealing noise , it also doesn't quite make the height of my passenger window in it's fully closed position falls around 5-7 mm short fully closed i'm hoping its some adjustments that you could perhaps advise , will adjusting the height screws from underneath fix this issue? or is it the other adjuster screws inside the door ? the regulator/motor seem to work correctly , it's just the issue of something making it difficult to come back up . Many thanks
November 18, 2014
  Followup from the Pelican Staff: Check if it is in the guides correctly, or if the rubber part of the guide is misaligned. - Nick at Pelican Parts  
Nydefense Comments: 2001 996 cabrio. my driverside window seems to work fine and no noise or grinding, but when it gets to bottom 1-2 inchs of fully open it drops the last inch or two. I've had no problem putting it back up or down but the sudden drop at the end bothers me. also if I replace the regulator, taking the door panel off seems easy enough but the air bag scares me. Do I remove battery connection after I have window all the way up, then remove panel? how is airbag disconnected? I read you must reconnect airbag before reconnect of battery or a fault code for airbag lights and must be reset by dealer. Thanks, great job on help articles
November 6, 2014
  Followup from the Pelican Staff: Disconnect battery before removing airbag. It is true, if you have airbag out and connect battery, you will have a fault code. best bet is to get window to needed height before beginning. Then remove battery and work safely. - Nick at Pelican Parts  
dudeonpei Comments: 1999 boxster, both window regulators failed over the summer. Motors were fine. I have changed the regulators, but there is no power at the switch for either window. I replaced the fuseD1 but still no power. I also replaced the light switch. Headlights are working fine again... not sure if there is anything connecting the two. Any ideas?
October 20, 2014
  Followup from the Pelican Staff: Power from D1 goes directly to the power window motors. Check if there is power there. If there is, try jumping terminal 2 to 4 on the left side swtich, use a fused jumper wire. - Nick at Pelican Parts  
Junior Comments: I believe I have a faulty microswitch on my drivers door 2003 Boxster, as the window works fine but does not drop when opening the door from outside or inside. Do you have any photos or instructions on where to locate the microswitch after removal of the door panel? Thanks.
October 12, 2014
  Followup from the Pelican Staff: I do not have any photos. However, this would indicate you have two faulty microswitches. I would try to initialize the window first. - Nick at Pelican Parts  
coveylane Comments: Recently had battery die in 2006 Boxster. After recharge, everything seems to be working fine except drivers door window. It drops like it should but does not go back up in place once the door is closed and also the auto up for that door isn't working. all started after battery problem. Tried to initialize according to your directions With the convertible top fully closed, press the up button on each window and then continue pressing down for about five more seconds but that didn't help.
October 2, 2014
  Followup from the Pelican Staff: This can be an issue with the door latch microswitch. Try cleaning and lubricating the door latch. - Nick at Pelican Parts  
arced76 Comments: hi nick - No turn signals, front or rear - I am replacing the window regulator this week to see if that fix the problem
August 26, 2014
  Followup from the Pelican Staff: The regulator is unrelated. I would inspect the turn signal switch. - Nick at Pelican Parts  
arced76 Comments: Hi nick and thanks for the reply - do you sell the wiring harness for a 99 boxster driver turning light - the one that goes under the fender and have the bulb? also, my parking lights work - the problem is my turning lights will not work at all - because if it was a short the parking light will not work at all right? my turning lights don't work at all - thanks
August 21, 2014
  Followup from the Pelican Staff: No turn signals, front or rear? It could be a short. More likely it is an electrical component. If you have damaged wires, start there. Give our parts specialists a call at 1-888-280-7799 and they can help figure out which part or repair kit you need.
- Nick at Pelican Parts
 
divad_zx Comments: hi - I have a 1999 Boxster and I just replace the front bumper that was pull out by another car - the driver turning light in the fender was damage - I got me a new one and I reattached the two wires together and put it back - now my fuse of 15amps is bad - I just replaced yesterday because I don't have any turning lights at all no front turning light or rear turning lights after I place the new fuse it short it again - them I placed another fuse and it did the same thing - Now I don't know what to do - I was reading the diagram for the fuses and there is a fuse that controls in row B number 6 direction indicator lights, power windows, convertible top this is the fuse that is going bad in my car – just to mention my Passenger Window regulator is not going up all the way – Do you think that since my window regulator is not working properly, this will have something to do with my turning lights not working and making that fuse B6 going bad everything I replaced? To add, I cannot lock my doors with the remote because starts to beep the horn twice
Thanks for your help

August 19, 2014
  Followup from the Pelican Staff: Check the area of the recent repair, the front end. There is likely a short in the wiring harness. - Nick at Pelican Parts  
Ron Comments: My window on the passenger side of my 97 Boxster will not auto drop with opening my door from the inside or outside handles. I can here the motor run when I lift up on either handle. What should I check first?
August 13, 2014
  Followup from the Pelican Staff: With the door open, push down on the glass, if it drops, the window regulator is faulty. - Nick at Pelican Parts  
Peakmaster Comments: Hi guys

I have a 2006 Boxster with an intermittent window fault. The passenger window doesn't open from the drivers side switch but is fine on the passenger side switch. Drivers window and everything else is fine.

Is this likely to be the switch itself?
July 30, 2014
  Followup from the Pelican Staff: This could be the switch or the driver door control module. Check the signal from the switch to the module. If it present, the module may be at fault. - Nick at Pelican Parts  
Dave Comments: Missing information from below: If you do a slight pull on the door handle on the passenger side with the door closed, the window will automatically drop as required, but if you then release the handle without opening the door, the window will not automatically go back up as it should. The driver's side works perfectly. Thx again!
July 22, 2014
  Followup from the Pelican Staff: Sounds like the window may need to be intialized. I would start there. USually when it goes down as expected, the switches are OK. If the initialization doesn't work, could be an issue with the door latch switch. - Nick at Pelican Parts  
Dave Comments: I have a 2006 Cayman. The passenger window drops the half-inch when the inner or outer handle is used to open the door, but the window does not roll back up once the door is closed. The window otherwise operates properly. Would this indicate a problem with the window motor or the door closed switch? Thx!
July 21, 2014
  Followup from the Pelican Staff: Sounds like the window may need to be intialized. I would start there. USually when it goes down as expected, the switches are OK. If the initialization doesn't work, could be an issue with the door latch switch. - Nick at Pelican Parts  
triplejaybaby Comments: Hi I have an 2003 Boxster and my driver window is off track. It is not moter cause I can hear it running when I hit the button.I also can grabb the window and pull it up a little. How can I get it back on track.
July 16, 2014
  Followup from the Pelican Staff: Replace the window regulator. - Nick at Pelican Parts  
Paul Comments: Ok, I haven't seen this one yet. '02 Boxster S, drivers door. Inside or outside the winnow drops to clear the roof, so far so good. But, as soon as you release the door handle it pop right back up. It doesn't seem to realize that the door is still open. Then when you close the door the window is jammed outside the roof. The courtesy lights work normally and all the other systems get the word that the door is open. Which microswitch or relay would it be?
July 5, 2014
  Followup from the Pelican Staff: This issue is usually the door latch microswitch. Try cleaning the latch with WD40 then lubricating it.- Nick at Pelican Parts  
SoliD Comments: Hi,recently followed this guide to replace my window regulator, on my 911 Targa.

Since replacing, I've had a few issues, I struggled to line it up at first, but went up fine, just rubbed a little on the back window, so had a bit of a play around, and got it lined up much better, however whenever I shut the door, the window drops about 6-8 inches, and the same goes for if I put the window all the way up, although after it has rolled down, if you wind it up it stays there, almost like it is dropping down if you put your fingers in it.


Does anyone have any ideas? I've tried to reset it by holding it in up for 5 seconds, just a bit confused, maybe it is too far up the stops on the regulator twisters?
June 28, 2014
  Followup from the Pelican Staff: If the window is dropping 6- inches, there may be a problem with the new regulator. If you can push it down, it is faulty. - Nick at Pelican Parts  
Zack Comments: My passenger side window on my 99 boxster rolls down about a half inch and then stops it won't go down any more, but it rolls up any ideas
June 23, 2014
  Followup from the Pelican Staff: Does it sound like it is binding? It could be a jammed regulator. Check if it is running smooth when it does, or if it is jamming. When jamming, the motor may try to run it longer, even when stalled.- Nick at Pelican Parts  
Paleale Comments: I was having the problem of the window not dropping enough for entry/exit. I took the slack out of the cable, and now the window needs another 5mm of up, and goes down too far. When down it hits the down stop the motor continues to pull for a second, and starts to actually twist the front guide. I have tried adjusting the up stops, but no change. Could the window need readjusting in the window clamps forward and rear ? Is the entire regulator off, or require replacement ? Thanks !
June 22, 2014
  Followup from the Pelican Staff: Sounds like a faulty regulator. When the window is up with the door open, push down on the window, if the window drops down, you need a regulator. - Nick at Pelican Parts  
dazednconfused Comments: It did turn out to be a faulty door window switch on the driver side. Should I have gotten a fault code?

Thank you for your help!
June 15, 2014
  Followup from the Pelican Staff: Not necessarily, if shorted you may have had a code. Thanks for the feedback. Glad we could help.
- Nick at Pelican Parts
 
DF Comments: I have a 2003 Boxster S - I put my window down and now it wont go up. I have tested the switch and it works fine. Passenger window works fine. I assume the fuse is ok because of this. Is there a separate relay for both doors. There is no window motor sound when I try the switch.
June 10, 2014
  Followup from the Pelican Staff: he regulator or motor could be faulty. Remove the door panel and check for power and ground to the motor when you operate the switch. - Nick at Pelican Parts  
dazednconfused Comments: Reinitializing did not work. Any other suggestions?
June 9, 2014
  Followup from the Pelican Staff: Could be a faulty regulator, module or door switch. I would grab a scan tool and check the door switches and for fault codes. - Nick at Pelican Parts  
dazednconfused Comments: ooops, my apologies. I just found it.

Thank you, I'll give it a try :
June 9, 2014
  Followup from the Pelican Staff: Thanks for the follow up. We appreciate it. - Nick at Pelican Parts  
dazedncomfused Comments: Hi Nick,

the link in your reply is to this same page and there is no mention of "initializing". Did you mean to refer me to a different page?
June 9, 2014
  Followup from the Pelican Staff: The instructions are the article I linked. - Nick at Pelican Parts  
dazednconfused Comments: My windows are acting up a little on my 2005 base boxster. Everything works except for the auto up/down feature. Auto "UP" doesn't work on passenger side and auto "DOWN" doesn't work on driver's side. The fuse looks ok and my other guess is a bad relay but I don't know where the relays are. Can anyone lend some guidance. I only had her a month. Thanks
June 6, 2014
  Followup from the Pelican Staff: Have you tried to initialize the windows? See this tech article: http://www.pelicanparts.com/techarticles/Boxster_Tech/77-BODY-Window_Regulator/77-BODY-Window_Regulator.htm

- Nick at Pelican Parts
 
Tim Comments: Just finished changing out the regulator for a driver's side door. Symptoms; the window would not roll down enough to clear the top when exiting the vehicle. After the regulator was swapped out, it worked great. Thank you for such detailed instructions. Although intimidating, job was rather simple.
May 24, 2014
  Followup from the Pelican Staff: Thanks for the feedback. Glad we could help.
- Nick at Pelican Parts
 
midlife2747 Comments: is there any quickfix for the grinding noise as the window goes up and down? i guess my window regulator is failing?
May 3, 2014
  Followup from the Pelican Staff: Other than replacing the regulator, no. If it is in fact the regulator that is failing. - Nick at Pelican Parts  
sirmoog Comments: My driver's window is acting bizarre, a 2005 Boxster S. The window opens full and closes full. When hitting the express down feature on the switch, sometimes the window will go express down, sometimes it will not. The bigger problem is when closing the door. With the top up, if I open the door to exit the car with the window full up, the window drops just a little as it should. However, when closing the door, the window often doesn't return to the full up position. Any ideas?
April 30, 2014
  Followup from the Pelican Staff: Sounds like a pin switch issue. I would clean and lubricate the door latch. If it begins to work, the latch may be failing. The door latch switch will also prohibit one-touch up and down.- Nick at Pelican Parts  
Stymes01 Comments: After doing this repair for my 99 986 my drive window no longer lowers when opening the roof. Passenger side lowers just fine. What could this be?
April 28, 2014
  Followup from the Pelican Staff: You need to either initialize the windows or the convertible top micro-switches are out of adjustment. - Nick at Pelican Parts  
Mark Comments: Lately both my windows will drop down while driving. They drop as far as they would go when you open the top. I cannot get the window back up until I pull over and pop down the top part way, put it back up and lock it in. Then the window works normally.

Any ideas?
April 19, 2014
  Followup from the Pelican Staff: You could have a bad pin switch in the door latch or inner handle. Or faulty regulators. With the door open, raise the glass, push down on glass, if it drops down the regulator is faulty. - Nick at Pelican Parts  
Anders_Swede Comments: I have a problem with the window on my 2002 996 GT2. It moves down but not up. It is now stuck fully opend. I hear a "click" from the motor when I press the switch, but no motion. What do you suggest me to try?
April 13, 2014
  Followup from the Pelican Staff: Sounds like you need a new window regulator. - Nick at Pelican Parts  
Andycad Comments: I have 2003 986. The window glass made "squeeling" sound when being lowered!! After this the window will not go up or down electronically!! I can move it manually. Any ideas?
March 20, 2014
  Followup from the Pelican Staff: Sounds like the window regulator has failed. - Nick at Pelican Parts  
Barton Comments: When I turn the drivers side door lock with a key on my Boxter Some times the passenger side window goes down all the way and other times the drivers side window goes down all the way. Other times they function properly and drop the normal comfort distance. Other times the door without repeated turns of the key will not actuate the lock. Other times I hear a grinding or motor noise from the front of the car. Which micro switches control the window movement.
March 5, 2014
  Followup from the Pelican Staff: This depends on where the input is taking place. At the door with the key, the switch at the lock cylinder controls that. With all of the issues, I would check the vehicle for fault codes. - Nick at Pelican Parts  
smash Comments: my airbag warning light stays on after I replaced the window regulator and unhooked the battery out and took out the airbag. if I take off the negative battery pole and touch the positive pole and let it sit for 15 minutes, would this reset my airbag warning light?
February 28, 2014
  Followup from the Pelican Staff: NO, you cannot clear airbag fault codes without a Porsche scan tool. - Nick at Pelican Parts  
Sean Comments: I tested the switches first and confirmed that the passenger switch was working correctly. After opening the panel I tested the motor. When I press up, it works fine, but down does not move the motor at all. Is this likely to be a wiring issue or a motor problem? Is there a way to test the voltage for each direction with a multimeter to see why one works and the other does not?
February 1, 2014
  Followup from the Pelican Staff: Yes, connect the DVOM to the motor leads, then operate the switch. Voltage polarity should changed depending on switch direction. - Nick at Pelican Parts  
panoz7 Comments: I just replaced both regulators in my boxster, and wouldn't have been able to do it without this guide. Thanks Wayne and team! A few tips:

- The moisture barrier is much easier to remove if you heat it with a hair drier / heat gun to soften up the glue.
- You can leave the top of the moisture barrier attached and still access everything you need to swap out the regulator - no need to completely remove it.
- If the gum that holds the moisture barrier on isn't sticky anymore, 3M Strip Calk is a good substitute. It was a bit of a challenge, but I was able to find it locally.
- Do not turn the car on to test the window with the side airbag disconnected. You'll get an airbag light that only the dealership can reset.
- I found a 5mm socket to be a good substitute for the E6 Torx socket you need to adjust the window height.


January 20, 2014
  Followup from the Pelican Staff: Thanks for the additional info. We appreciate it.
- Nick at Pelican Parts
 
PorscheFred Comments: My driver side window on my '03 C4S did not go down when any of the handles were operated but I could hear the motor operating correctly causing the glass to stay outside the roof weatherstrip. The window however did go down correctly If I exerted down pressure on the glass while operating the handle. The relearning procedure did not help in my case. However, I was able to adjust the height of the window using the torx screws evenly front and back until the window barely cleared the roof weather strip. I know the regulator or cable has 'play' and that may be the root cause but, adjusting the height allows me to workaround the issue until I can replace it.

hope this can help somebody else

Fred from PR
January 18, 2014
  Followup from the Pelican Staff: Thanks for the additional info. We appreciate it.
- Nick at Pelican Parts
 
smash Comments: I have a 1999 and my window will not go up. I push the switch and it goes up a little. this happens on the drivers side. any ideas?
December 24, 2013
  Followup from the Pelican Staff: Could be a bad window regulator, it may be jamming. - Nick at Pelican Parts  
Creekman Comments: The drivers side window intermittently doe not lower when activating the door handle, other times works correctly. The motor seems to be working properly and also the window switches. The window makes no noise or ir-regulator movement. 2003 Boxster. Any suggestions?
November 28, 2013
  Followup from the Pelican Staff: This could be door handle microswitch. If this is when opening from the inside, it could be in the inside switch, from the outside, the outside door handle switch.


- Nick at Pelican Parts
 
Mike Comments: I installed new Regulator and the cable tension is too loose on the front cable when the window is fully closed. Any ideas?
November 24, 2013
  Followup from the Pelican Staff: You didn't mention what vehicle you have. is the window adjusted properly? Did you have to swap the motor over? It could need an adjustment or the regulator isn't properly timed. - Nick at Pelican Parts  
Wilko Comments: Hi, I have a 987 Cayman and recently had the regulator replaced as the wire cable had snapped. All was working well for a few weeks until today when it seemed to have developed a new issue which sounds like it could be the micro switch. When winding the window up or down the motor does not stop, it just appears to keep turning in both directions and makes a clicking sound at each extreme. Does this sound like the micro switch and can these be purchased on their own?

Many thanks.
October 13, 2013
  Followup from the Pelican Staff: If the window regulator reaches the top and continues to try to go up, there is an issue with the regulator. Sounds like the motor is faulty and is unable to tell when it is in the end position. I would replace the regulator with a new one. be sure the window fore / aft and height are correctly adjusted once the new part is installed. - Nick at Pelican Parts  
William Comments: Thank you so much for maintaining this excellent site.
I have a 2003 Boxster. As described by you and others, the window properly drops the "comfort gap" but rises into full-up position as soon as the inside or outside handle is released, rather than waiting till the door actually closes before rising. Here is the part I have not seen discussed yet - - If I initialize the window by holding the button for five seconds, it works perfectly ONE TIME and then returns to the faulty operation. Does this additional fact isolate the problem any?
THANK YOU VERY MUCH.
September 16, 2013
  Followup from the Pelican Staff: The window should open uniformly across the top of the glass and drop down about 13mm. If it does not it could be the regulator or a microswitch.

When the door handle is opened a signal from a microswitch in the handle (insdie or out)and a signal from the door closed switch are used to determine if the window needs to be down or up to open or close the door.

When you open your door, if the window doesn't drop, try pushing down on the glass once open, if it goes down easily, the regulator is faulty. If it does not, the microswitch is likely sticking or not sending the correct signal. Pin 1 on the power window motor is where this signal is sent.

If the window works once, it could be a mechanical fault in the regulator or an electrical issue with the module. It working once, tells me the switches are working. Check the regulator by pushing down as described above.


- Nick at Pelican Parts
 
Powerhobo Comments: I have a 2005 987. I've read the articles from the book 101 projects and have a quick couple of questions. First to confirm I'm solving the right problem when I open the door the window comes down the required 1/4 inch but the second the the door handle is released the window goes up instead of waiting for the door to be closed. The only way to properly close the door is to keep the handle pulled when closing the door.

My assumption is that the problem is the electrical switch is now faulty. Can I actually replace the switch only?
August 14, 2013
  Followup from the Pelican Staff: The switches are part of the assembly and not available separately. Give our parts specialists a call at 1-888-280-7799. They can help you find the right part.
- Nick at Pelican Parts
 
Jeff Comments: Excellent, excellent article!! Thanks!
January 24, 2013
  Followup from the Pelican Staff: Thanks for the feedback. Glad we could help. - Nick at Pelican Parts  
p0r5che Comments: Please be very careful guys after disconnecting the airbag and my regulator and window are great but the airbag idiot light is now on and I have to go to dealer to get it reset
December 29, 2012
  Followup from the Pelican Staff: The airbag fault will have to be cleared using a Porsche scan tool. Unfortunately, no other way around it. - Nick at Pelican Parts  
jaalmodo Comments: Bratboy03. I have the same problem with my 03 Boxster. Window will not roll down 1/2 inch. How did you fix it?
December 12, 2012
  Followup from the Pelican Staff: First be sure your windows are properly initialized. Hold the window open button until window is rasied and hold for 5 seconds.

The window should open uniformly across the top of the glass and drop down about 13mm. If it does not it could be the regulator or a microswitch.

When the door handle is opened a signal from a microswitch in the handle (insdie or out)and a signal from the door closed switch are used to determine if the window needs to be down or up to open or close the door.

When you open your door, if the window doesn't drop, try pushing down on the glass once open, if it goes down easilly, the regulator is faulty. If it does not, the microswitch is likely sticking or not sending the correct signal. Pin 1 on the power window motor is where this signal is sent.

There are also height, tension and regulator limit stop adjustments that can be made. If you suspect these can be your issue, I would grab a repair manual as they are hard to explain without graphics to acoompany the explanation.- Nick at Pelican Parts
 
Ash Comments: I have a 1998 boxster, original owner. My window won't close and I am uncertain if its the motor or the regulator. I was closing my top when the passenger window opened all the way. Since then the window will only open about 10%. The window will close from that position all the way down, so it appears that the motor is working. I opened the door panel, but can't tell if the regulator needs adjustment or not. Any ideas ?
November 14, 2012
  Followup from the Pelican Staff: First be sure your windows are properly initialized. Hold the window open button until window is rasied and hold for 5 seconds.
- Nick at Pelican Parts
 
johnq98 Comments: I have replaced the motor and regulator twice and my windows still won't go up or down. Is it possible that my problem is the window switches?
October 8, 2012
  Followup from the Pelican Staff: It could be the switch, broken wires, or a blown fuse. I would operate the switch and see if the motor is getting power and ground when you attmept to open and close it. - Nick at Pelican Parts  
Sacha Comments: Unfortunately this article only applies mostly to 986 models. 987s have a sheet metal covering that hides the entire window and regulator. I cannot find any articles or description on window regulator removal for a 987. The window motor is attached to the outside of this cover and actually easier to remove. However, I'm not sure if I can just unbolt and remove the metal cover without damaging anything else behind it. Unfortunately the book doesn't mention this difference either.
September 29, 2012
  Followup from the Pelican Staff: The regulator is similar except for the fact that is bolts to the metal panel. Disconnect the battery. then remove your door panel. Then unbolt the window motor from the panel. Then remove the panel. I know some guys that leave the panel partially installed and sneak the regulator out. Once the panel is out of the way, the procedure is similar. - Nick at Pelican Parts  
James Comments: I have a 1997 boxster that makes a scraping sound when the passenger window is raised or lowered. I have removed the door panel to look for obstructions or broken parts and don't see any. Can I remove the glass and operate the motor to help isolate the problem?
August 15, 2012
  Followup from the Pelican Staff: Yes, the regulator should operate normally with the glass removed. - Nick at Pelican Parts  
tedzwedz Comments: Good article BUT it is NOT correct in the "Tools" section at the top to say you only need a torx screwdriver, this is wrong, you need a socket set too for the Regulator mounts..
July 9, 2012
  Followup from the Pelican Staff: Thanks for the input on this one. We appreciate the help. - Nick at Pelican Parts  
stevo Comments: I have 2001 911 c4 cabrio and need to replace the passenger rear window regulator. some one told me i need to reset the computer to make it synchronize with the cabrio top is this true ? or I just need to instal it at the bottom of the cycle ?
May 11, 2012
  Followup from the Pelican Staff: you will have to initialize the windows when done.

Hold the window open button until window is raised and hold for 5 seconds. - Nick at Pelican Parts
 
andrew83944 Comments: hey there..have an 01 boxter..heard a weird noise when opening my window..after removing the door panel and inner vapour barrier..I found the round white plastic wheel that keeps tension on the front wire to the window regulator had fallen off.I found the inner magnetic sleeve that fits into the tube that holds this white wheel but not the metal cap..is this cap and plastic wheel available or do I have to buy a new regulator.
Thanks
April 29, 2012
  Followup from the Pelican Staff: You will have to replace the regulator and motor. - Nick at Pelican Parts  
mike Comments: I have a 2000 boxster and after it was serviced, "with the battery disconnscted" I shut the passenger door. I did not realize the window had not lowered itself. I tried several times to close the door with the window up not knowing it was all the way up. When I realized the window was all the way up I lowered the window manually with the window switch and closed the door. I guess I broke something when I kept trying to close the door with the window up. Now when you pull the inner or outer door handle the window lowers part way but not enough to open the door. The window will raise and lower with the regular window control switch. There is a pop when the window get all the way up. Any ideas what I broke
March 17, 2012
  Followup from the Pelican Staff: First be sure your windows are properly initialized. Hold the window open button until window is rasied and hold for 5 seconds.
- Nick at Pelican Parts
 
bratboy03 Comments: Hi there. I have replaced the R/H window regulator and the motor on our 2003 Boxster S. The original problem was that the motor would not lower the window enough to open the door when you raised the handle, or pulled the inner handle halfway. It turned out there is a rubber buffer in the motor that was worn. The window would go down the neccesary 1/2 inch if you took up the slack. Now with the new parts installed the window slack is gone but the window will only go about 1/4 inch when the handle is raised and when you release it the window returns. I can't seem to find any adhjustments anywhere for this and I don't think it is an electrical issue. Lastly when I was looking at the new regulator I noticed a series of 4 spring clips on one motor end of the cable. One of the four clips was part way out when I recevied it so I pushed it in. Is it possible that this could have something to do with the window not dropping fully or did something else go wrong in my installation. If anyone has any input I sure would appreciate it. Thank you in advance
February 26, 2012
  Followup from the Pelican Staff: First be sure your windows are properly initialized. Hold the window open button until window is rasied and hold for 5 seconds.

The window should open uniformly across the top of the glass and drop down about 13mm. If it does not it could be the regulator or a microswitch.

When the door handle is opened a signal from a microswitch in the handle (insdie or out)and a signal from the door closed switch are used to determine if the window needs to be down or up to open or close the door.

When you open your door, if the window doesn't drop, try pushing down on the glass once open, if it goes down easilly, the regulator is faulty. If it does not, the microswitch is likely sticking or not sending the correct signal. Pin 1 on the power window motor is where this signal is sent.

There are also height, tension and regulator limit stop adjustments that can be made. If you suspect these can be your issue, I would grab a repair manual as they are hard to explain without graphics to acoompany the explanation.- Nick at Pelican Parts
 
PJ Comments: excellent article! Great Pics. About 4 hrs works fine. Porsche Dealer wanted $ 380 part and $350+ labor.
Thanks!
PJ
September 17, 2011
  Followup from the Pelican Staff: Thanks for the feedback. Glad we could help. - Nick at Pelican Parts  
mrmetts Comments: WARNING: Hook the airbag up electrically before re-connecting the battery and turning the ignition key to check window operation and fit. If you leave the airbag disconnected and turn the ignition switch, it will activate the airbag warning lamp, requiring a computer re-set.
June 6, 2011
  Followup from the Pelican Staff: Thanks for the tip, that's true. - Wayne at Pelican Parts  
Mh Comments: Will this apply to a 2000. 996
February 12, 2011
  Followup from the Pelican Staff: Yes, the window regulators and just about everything inside the doors is the same on the Boxster and the 996/997 - Wayne at Pelican Parts  

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