2009 S600 Sunroof 50/50 duty cycle open/stop continuous
Thread Starter
Member
Joined: Jun 2023
Posts: 190
Likes: 76
From: Portland, Oregon
2009 S600 V-12
2009 S600 Sunroof 50/50 duty cycle open/stop continuous
Hello,
The sunroof was operating perfect with 91,00 miles.
Then all of a sudden, it started to open or close, 50/50 duty cycle, move 1 sec, stop 1sec, and so on.
I searched the forum and all that could be found was operating like a machine gun. No fix mentioned.
It’s closed all the way ready for the Oregon rains. Never to be touched again until repaired.
Can anyone suggest a fix?
johnny
The sunroof was operating perfect with 91,00 miles.
Then all of a sudden, it started to open or close, 50/50 duty cycle, move 1 sec, stop 1sec, and so on.
I searched the forum and all that could be found was operating like a machine gun. No fix mentioned.
It’s closed all the way ready for the Oregon rains. Never to be touched again until repaired.
Can anyone suggest a fix?
johnny
Last edited by johnnyrocket52; Sep 29, 2024 at 05:59 PM.
Super Member
Joined: Dec 2018
Posts: 857
Likes: 501
From: Washington, DC
2007 S600, 2007 Chrysler 300 SRT8, 2000 C5 Corvette, 2017 Mustang GT, 2023 300C, and a 2019 Lincoln
I think the machine gun sound is related to the sun shade motor. I had to have my shade motor replaced when it started the machine gunning sound. There are rubber grommets on the motor for mounting and the grommets compress over time leading to the machine gun sound from poor adjustment.
The sunroof motor is a separate motor and it sounds like yours just wore out and needs replacement. The motor was like $150 or so. The hassle was removing the alcantara roof liner to get to the motor. You need to have very clean hands when working with alcantara as it will soil easily.
My only real suggestion is to do both motors while you are in there. I did not have the presence of mind to replace both at the same time and ended up having to do them at different times. There is also a very expensive lubricant that you need to use. I found it on Ebay but it was over $100 for a pound of the lube. You only need maybe an ounce. There was a vendor who bought the big tub and broke it down into small portions for like $10. I did that. It really pays to keep the sunroof components lubricated.
The sunroof motor is a separate motor and it sounds like yours just wore out and needs replacement. The motor was like $150 or so. The hassle was removing the alcantara roof liner to get to the motor. You need to have very clean hands when working with alcantara as it will soil easily.
My only real suggestion is to do both motors while you are in there. I did not have the presence of mind to replace both at the same time and ended up having to do them at different times. There is also a very expensive lubricant that you need to use. I found it on Ebay but it was over $100 for a pound of the lube. You only need maybe an ounce. There was a vendor who bought the big tub and broke it down into small portions for like $10. I did that. It really pays to keep the sunroof components lubricated.
Senior Member
Joined: Jun 2015
Posts: 257
Likes: 100
From: South Padre Is, Texas
2007 S600, 911 & XJ8
Johnny:
Check out post #19 and my post that follows:
https://mbworld.org/forums/s-class-w...50-2007-a.html
It may not be nearly as bad as it sounds... Fixed mine with just some stuff I had laying around...
Cheers... Mark
Check out post #19 and my post that follows:
https://mbworld.org/forums/s-class-w...50-2007-a.html
It may not be nearly as bad as it sounds... Fixed mine with just some stuff I had laying around...
Cheers... Mark
Last edited by mcypert; Sep 30, 2024 at 10:09 PM.
Thread Starter
Member
Joined: Jun 2023
Posts: 190
Likes: 76
From: Portland, Oregon
2009 S600 V-12
Johnny:
Check out post #19 and my post that follows:
https://mbworld.org/forums/s-class-w...50-2007-a.html
It may not be nearly as bad as it sounds... Fixed mine with just some stuff I had laying around...
Cheers... Mark
Check out post #19 and my post that follows:
https://mbworld.org/forums/s-class-w...50-2007-a.html
It may not be nearly as bad as it sounds... Fixed mine with just some stuff I had laying around...
Cheers... Mark
It looks like a straight forward job.
I will jump on it right after I replace all 4 brake rotors and pads.
Johnny
Member
Joined: May 2023
Posts: 96
Likes: 53
From: California
2019 Mercedes S560
Does it just need to be re programmed? If you have not thought of that already, im sure you have though.
once you get it closed/open keep holding the button for 10 seconds to program the stopping locations...
Good luck...
once you get it closed/open keep holding the button for 10 seconds to program the stopping locations...
Good luck...
Thread Starter
Member
Joined: Jun 2023
Posts: 190
Likes: 76
From: Portland, Oregon
2009 S600 V-12
Can holding down the button for 10 sec burn anything up?
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From: California
2019 Mercedes S560
Works for me all the time, when you unplug a module somewhere in the car or the battery gets disconnected, it kinda has a panic attack. Sometimes this usually solves it.
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Joined: May 2023
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From: California
2019 Mercedes S560
Another tip on a sidenote, if it ever gets wonky and will not close, if you have keyless go.(maybe you don’t need to have it.) but from the outside the car, you can hold down the lock button to close everything and the lock button to open everything. I’ve had to do that once or twice.
Thread Starter
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Joined: Jun 2023
Posts: 190
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From: Portland, Oregon
2009 S600 V-12
it should not, in fact, I actually think you only hold it down for about five seconds. Basically what you do is keep pushing it even though It only moves like an inch but just keep doing that until it gets to the fully open position and hold down the button for maybe five seconds or so. Then do the same thing to close it, once it’s in the close position hold down the button again for five seconds. After that, it should open with one click. I don’t think it would burn anything up as the motor can only move so far, this is how Mercedes tells you to re-calibrate the sunroof. I think you can find videos online too.
Works for me all the time, when you unplug a module somewhere in the car or the battery gets disconnected, it kinda has a panic attack. Sometimes this usually solves it.
Works for me all the time, when you unplug a module somewhere in the car or the battery gets disconnected, it kinda has a panic attack. Sometimes this usually solves it.
johnny
Thread Starter
Member
Joined: Jun 2023
Posts: 190
Likes: 76
From: Portland, Oregon
2009 S600 V-12
It didn’t rain for a few days so I got the courage to try the the: hold down the button for 10 secs after fully opening and 10sec after fully closing.
No change in symptoms, still machine gun Kelly.
Did I do the re-teach correctly?
Is there another method or do I have to work on the electric motor mounts?
Johnny
No change in symptoms, still machine gun Kelly.
Did I do the re-teach correctly?
Is there another method or do I have to work on the electric motor mounts?
Johnny
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Joined: Aug 2014
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S500
which issue are we trying to resolve ?
a) was it easyphil that found some rubber bush self-destructs - so you replace with a home made bit - then the drive works without judder
b) merc produce a special grease that costs a fortune, you lube the slides / mechanism with it and then the roof glides without strain and doesn't break bits that are now unobtainable
c) the anit-trap reset - I believe needs full open, full close and hold for a few seconds and the tilt needs the same treatment
a) was it easyphil that found some rubber bush self-destructs - so you replace with a home made bit - then the drive works without judder
b) merc produce a special grease that costs a fortune, you lube the slides / mechanism with it and then the roof glides without strain and doesn't break bits that are now unobtainable
c) the anit-trap reset - I believe needs full open, full close and hold for a few seconds and the tilt needs the same treatment
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Joined: Feb 2017
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From: Baltimore County, MD
'13 s212 63 p30. '06 LX470
yes it’s expensive but really how many sunroofs and interior bits are you going to lube. This one little tube will do at least five sunroofs or more.
Member
Joined: May 2023
Posts: 96
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From: California
2019 Mercedes S560
yikes........ I think something is actually broken, it seems to need more than just a reset - Unless you can take it to someone who has a 'real' scanner to re-program the whole sunroof. That won't do anything if there are pieces broken in there, no grease, etc.This is kind of sac religious but if my car was acting the same as yours I'd open up the checkbook and go see your friendly independent Mercedes/euro mechanic.........
Sunroofs are just kinda, well, horrible. They are really really not mentally to be fixed by just yourself (at least myself). Great when they work though!
Super Member
Joined: Dec 2018
Posts: 857
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From: Washington, DC
2007 S600, 2007 Chrysler 300 SRT8, 2000 C5 Corvette, 2017 Mustang GT, 2023 300C, and a 2019 Lincoln
Just saw the YouTube on opening the F-117 canopy. Totally reminded me of the sunroof on the W221. Worth watching for the laugh.
