








CL203 Coupe Pano-roof Maintenance - MB lube Grease Part #s, gears, & fixes

while i was there, i asked my sales guy about changes to the c-coupe for this coming year... and i came away feeling less than confident in his knowledge of my car.
The rattling is annoying but goes away when the roof is open or the back part tilted up for ventilation. Anyone else have this and was the dealer able to fix it (the first time) ?
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My roof started the rattle at 4000mi. It would stop if I tilted it like you say, or if I placed my hand on the rear of the glass and lightly pushed up.
It's an easy fix: tilt the glass and clean the rubber seal that runs around the perimeter of the opening. Then clean the underside of the glass panel (the black part, where it contacts the seal).
I can't comment on the loud clunks.
If it was a recall, you probably would have received a notice in the mail and the recall would have been related to a safety concern.
Is it that MB service doesn't know what the difference between a recall and TSB is? Or do they believe that "recall" sounds less harsh then "technical service bulliten"?
The Best of Mercedes & AMG
i have almost 8000miles on it, and it seems that p.roof's mechanism is the first thing i'll get serviced......=)
it's always open~!
If it was a recall, you probably would have received a notice in the mail and the recall would have been related to a safety concern.
Is it that MB service doesn't know what the difference between a recall and TSB is? Or do they believe that "recall" sounds less harsh then "technical service bulliten"?
Cheers, BT
Your car will now start to pull to the right, the engine will burn oil, and you'll get a squeak in the front end that the dealer won't be able to find.
Welcome to the club.
I have a service A coming up in a month or so and will have it fixed then.
Tilt the roof up.
Grab a rag and your favorite cleaner.
Clean the rubber seal attached to the car body that runs around the perimeter of the roof opening.
Clean the underside of the sliding roof panel where it contacts the seal.
Turn the rag over and look at all the crap that you just removed.
Close the roof and enjoy the silence.
This has worked perfectly for me. I've had to clean the seal at 4000mi and again at 8000mi. I like this fix much better than having some guy tear apart the roof and replace various mechanisims.
Its almost like the A/C unit is cooling the inside and the outside surface is warmer (Austin Texas). At a certain point of temperature change, Pop!
Only notice it once per cycle of starting the car and driving around then parking.
In my Coupe the roof area (not necessarily the panoramic sun roof) "pops".
Its almost like the A/C unit is cooling the inside and the outside surface is warmer (Austin Texas). At a certain point of temperature change, Pop!
Only notice it once per cycle of starting the car and driving around then parking.
. When I got back, whenever I closed the sunroof it would make a terrible noise. I took avlis's advise and cleaned the rubber seals and regreased the rails. No sound anymore
Thanks avlis
I took my car in for it's A sevice, told them about the squeak and how it seems worse when hot...they said they couldn't find the problem. So I just cleaned it with MB-Bob's favorite SimpleGreen ...and that fixed it. Thanks Al...you da man!


