2009 S600 Sunroof 50/50 duty cycle open/stop continuous
09-29-2024, 05:57 PM
#1
Member
Thread Starter
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; 09-29-2024 at 05:59 PM.
Yesterday, 04:20 AM
#2
Yesterday, 02:03 PM
#3
Super Member
Join Date: Dec 2018
Location: Washington, DC
Posts: 664
Received 358 Likes
on
235 Posts
2007 S600, 2007 Chrysler 300 SRT8, 2000 C5 Corvette, and 2017 Mustang GT, and just got a 2023 300C
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.
Yesterday, 10:01 PM
#4
Senior Member
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; Yesterday at 10:09 PM.
