57 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHSunroof Help
Leading reported evidence
Check tsbs
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that performed work without a confirmed outcome
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Performed · outcome unconfirmed
I just checked the TSBs for the 996, and turned up nothing.
Leading evidence: 'Check tsbs' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check tsbs' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
Seems like the next two things to try are lubricating the rails and other mechanisms, and then replace the motor.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
I've been trying cleaning and lubricating the rails, retraining...
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
1
0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Suggestion
The only fix is to change the motor because the electrical circuitry is within the motor.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
57 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
2 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
I see that in November 2010 I fixed my problem with the sunroof only closing part way by greasing the rails.
I've searched the forums and found the sunroof reset procedure, but still can't seem to figure out the issue I am having...
I have a 2001 996 coupe. When operating the sunroof the back button will not work upon initially pressing it. Neither will the vent button. But if I push the forward button, the sunroof will raise. Then push the forward or back button again, it will close. Then, if I push the back button, it will open up fully. Seems a bit finnicky.
Additionally, the sunroof reset procedure will not work for me or perhaps I am doing it wrong.
Any help appreciated.
Mine ('99 C4) acts exactly the same way. I did the reset procedure and it still operates as you described. Not like the owner's manual describes. So I am very interested to find what others are experiencing.
...Rickker
On mine the center button raises the rear of the sunroof (vent position..??) and pressing the front of the button assembly closes it. To "slide" to the rear, open the sunroof, I depress the rearmost button of the assembly. closing is the same for both.
'01 C4.
On by 2001, the sunroof opens without any problems. When the closing, however, it takes 3 tries before it closes. That's weird, it must be in the computer.
I have a 99 that acts the same way. The reset procedure
fixed the one touch open, but it won't open at all unless the pop up open and close procedure is done first.
Hope somebody has the answer -- seems as of this glitch is not uncommon.
WTF? All of us have the same issue. Has anyone else seen this and have a fix for it? Do we need a new switch assembly? Or can it be fixed through the reset procedure? I haven't had any luck.
Any advice appreciated.
If the sunroof is up in the vent position then depressing the rearmost button will cycle it closed but now you must release and re-depress the button if you wish to slide the sunroof to the rear.
SOP.
My guess in your case is that over time and driving the sunroof remains closed to the mechanical stop but the limit switch that indicates the sunroof is fully closed from the vent position is not actuated and the "cycle" is required to get it to actuate.
OK, I have the same sunroof problems w/ my 2001 996...I can get it to operate but by jumping through the same hoops described. Any idea how to fix? BTW- where can I find the "reset" procedure?
hey guys a bit of a thread revival here...I still have this problem unresolved. Reteaching will make it work until you turn the car on and off. I also have a rattle when the roof is closed that goes away by applying light pressure on the inside of the roof.
Any help here? I also tried to remove the sunroof panel in accordance with the shop manual but couldn't figure out what parts it was talking about when it mentions disengaging the "sliding/tilting roof trim"
My sunroof has been wonky since I bought the car five years ago. It opens fine, but the one touch close doesn't work. It gets halfway closed, then either stops or reverses direction. If you hold the button in the whole time it will close.
I had this problem and it was solved by applying grease to the tracks where the cables and guides run. It was binding and the safety circuit was kicking in.
I had to remove the panel to gain access to the guides, but this wasn't that difficult. When it was all done I had to reset everything though and that took a few tries IIRC.
Now it works great - like new even.
My 01 C4 works exactly the same way... and have no issues with it.
I do have it lubed or greased every 2 years to keep everything sliding as it should..
Hello all,
I've been a 996 Turbo owner for about 6 months, and have had no problems with my sunroof until just a couple of days ago with the exact same symptoms as the OP and others have described. Has anyone had any luck finding a solution to this?
Thanks!
Try what Jasper did. Could of sworn there was an old thread discussing the switches getting flaky but eh.
My headliner panel seperated from the sunroof and I'm being lazy getting that repaired. Either the front or rear snaps in while the opposite side wont.
This was a great threat. Going to try this as I am having the same issues.
As for the rattle mentioned above I solved that by installing an "edge guard" - viola no more rattles! Just a rubber strip that goes across the back "springy thing". If anyone is interested I can post pictures.
I recently purchased my 996 and it has exactly the same sunroof switch behavior as described in this post. Has this issue ever been resolved? Has anyone ever resolved this?
Mine has never worked except right after training. Turn off the car and start it again. That's it. Thought about trying to lube the track - it's just not easy to get to.
I was going to replace the motor but I figure why bother until it flat out dies.
Right now just a slight inconvenience and I chalk it up to "character" :/
Gents;
I see that in November 2010 I fixed my problem with the sunroof only closing part way by greasing the rails. That problem started re-occurring a couple of years later - but only once in a while and I haven't re-lubed it yet because......
My one-touch feature stopped working. I now have exactly the same symptoms as the OP.
I need to tilt up the roof using the forward button, then push the forward button so it does a little wiggle, then push the forward button one last time to tilt the roof down.
Only then I can one-touch it open....and it won't one touch closed. That has to be done the hard way.
Looking for a solution but I guess it doesn't exist yet.
Isn't kind of "odd" so many with the same issue? I would think the motors are the problem yet they still open and close so it is just odd. I an PITA sort of way but not a big enough PITA for me to do much about it, LOL.
Add mine too. I've been trying cleaning and lubricating the rails, retraining... But it only lasts until the next ignition cycle. I guess it's new sunroof motor time.
The solution is replace the motor. Since, it is "annoying" but still working after a year this way I have better things to do with the $300+ a new sunroof motor which seemingly holds the "memory" would cost so I just hold my finger on it to open and close it. Annoying but cheap
Check this thread out....one owner found success using this method (no he did not buy a new motor):
http://www.6speedonline.com/forums/9...new-motor.html
Hope it works for you!!!
Ray
Hi there!
Sorry I just looked at this thread and saw the reply. The rattle I had was noticeable when the roof was closed (most of the time) and was because if an edge guard vibrating against it. I actually found the solution in a TSB when browsing a different site.
Anyway if that sounds like you - I ordered the replacement part from pelican. (number was updated as the part was also for a 997)
The part number is 99756467100
Hope this helps!
I have a 2000 C4 and this reset procedure didn't work for me - I had to use "close" instead of "open". In other words:
Close the sunroof
Release the close button
Press the close button and hold it
After about 10 seconds the sunroof will cycle through a complete opening and closing. Keep the close button held down.
After the cycle completes, release the button and things work as they should (e.g. one touch).
But, at least for me, only until next ignition cycle :-(
I am noticing my sunroof seems to be sluggish. Seems like the next two things to try are lubricating the rails and other mechanisms, and then replace the motor.
I've seen some comments in this thread about lubrication but am not finding any clear directions. Pointers appreciated.
Add me to the list. I've ordered some Wurth True Glide for grease. It it works miracles on the older cable (Golde) sunroofs. My '76 BMW went from a barely operable hand crank to smooth as silk. I'll report back once I've done it.
-Lloyd
pdobbs "I have a 2001 996 coupe. When operating the sunroof the back button will not work upon initially pressing it. Neither will the vent button. But if I push the forward button, the sunroof will raise. Then push the forward or back button again, it will close. Then, if I push the back button, it will open up fully. Seems a bit finicky."
Same here...annoying.
I have a 2013 997.2 TT with the same sunroof switch problems as the original poster. Can anyone please explain the reset or reprogramming procedure? I've tried the hold down close button ten seconds and this does nothing! HELP!!!
I have a similar issue with my 996 turbo. Reset procedure works for me and then I can one touch open/close the sunroof but once I turn of the power I lose it again. From searching around it sounds like replacing the motor would fix it but obviously would like to avoid that since motor works.
The only fix is to change the motor because the electrical circuitry is within the motor. I am kind of living without one touch open as I don't open sunroof all that often. But it seems its a crap fail prone system. I bet its an every 5 year failure item as forums are now littered with this problem.
I was doing a quick research on the Porsche 996 sunroof motor and came across the motor used on an infinity G35 wich looks exactly the same as the Porsche one. Both are Siemens with part numbers 770.60003. Of course a fraction of the cost on eBay! Has anyone here tried to retrofit one of these motors on their Porsche?
Going to post here as well as mine started doing the same thing a few months ago. I have it on my list to fix and will post if/when I figure out a solution.
