Popping sound from panorama sunroof.




I think it says something that BMW has never even attempted to put on in.




Interestingly enough, a Grand Cherokee built on the ML Chassis seems solid as a rock when driving it (but again, new).
Or not. all I have is the following:
"Able to isolate noise to the left side of roof. Lowered head liner included the removal of A,B, and C-Pillars
. Removed all hardware holding head liner in place. When tested again, noise was produced by the movement between sunroof frame and body.""Applied Thread Lock to all screw hold frame and secured frame to vehicle. With headliner still out, road tested again and noise was no longer present. Head liner was installed."
Um. It took one tech most of the day to tear the top half of the car apart and two guys on a test drive to isolate the noise. Best of luck...
Last edited by unagi1; Nov 6, 2015 at 06:32 PM.
The Best of Mercedes & AMG


http://workshop-manuals.com/mercedes...res/page_9256/
It's couple pages. Wonder how long it'll really take.
http://workshop-manuals.com/mercedes...res/page_9256/
It's couple pages. Wonder how long it'll really take.
It's a tight space for sure, and a low-profile T30 wrench is required, but it is entirely doable for anyone who is passably handy, like change-your-own-oil-and-filter handy.




Just got a call back from the dealership where it is in for service. Said that they would need to dismantle the whole headliner to get at the frame and if there was nothing broken but it merely needed adjusting that I would have to cover the 5 hrs of labor it took to dismantle!
Adjustments to get rid of this kind of noise is not covered by warrantee?
Going to have to go somewhere else.
Origin of noise 42180-42185 Noise from center Panoramic roof. Removed Headliner for access and found cross support bar mounting bolts loose. Removed and applied loc-tite to threads and re- installed
from timing logged on paper work it seems about 1.5 to 2 hours of labor costs. Issue seems to have been resolved..
R&R over head control panel, rear view mirror, left and right grab handles, left and right sun visors, headliner. Re-tightened sun roof rails.
I think there is an OP CODE 681611 (not sure though), the service advisor said that is a service bulletin out on how to fix it but no recall.
Mine is still under warranty and it was fixed at no cost to me.
Hope this helps.
Or not. all I have is the following:
"Able to isolate noise to the left side of roof. Lowered head liner included the removal of A,B, and C-Pillars
. Removed all hardware holding head liner in place. When tested again, noise was produced by the movement between sunroof frame and body.""Applied Thread Lock to all screw hold frame and secured frame to vehicle. With headliner still out, road tested again and noise was no longer present. Head liner was installed."
Um. It took one tech most of the day to tear the top half of the car apart and two guys on a test drive to isolate the noise. Best of luck...
I will be taking her in to get this covered under warranty; anyone know the exact TSB on this?




Of course, if you can get the dealer to do it for free, well, what's not to like?




Of course, if you can get the dealer to do it for free, well, what's not to like?

Would you explain a little bit how to do this job as you say it is an hour or less job?





