I was wondering if anyone could lead me in the right direction to some cleaning products I can use, to preserve my sun roof on my c43? I read that people use mobile one syntheic lubricating grease? My sunroof is sticking and if don't Do some maintenance it will probably break lol.

Funny you ask this, I'm wondering the same thing. My sunroof is starting to sound like it's hanging up a bit. What's the proper preventative maintenance?

same with mine, sometime works but 20% of the times doesn't so I have to crank it by hand.

sticky motor, needs to be taken apart and checked out.
sunroof and windows are they programed correctly?

I found some info out. Mercedes carry's some special sunroof grease but its pretty pricey. Its called Gleitpast Grease.Here is the part number # 001-989-46-51. But people are saying to email this guy rusty@mbparts.com and he can hook it up for a better price.
Also if anyone wants to buy the tub heres the website, http://www.pelicanparts.com/cgi-bin/...art%3A%20PASTE

http://www.triflowlubricants.com/Syn...synthetic.html I also heard this stuff is good too on our sunroofs. People use it on guns.

This looks better than the $85 big ones.. Any recommended application procedures?

https://mercedessource.com/store/sun...and-pad-grease I found this Mercedes sunroof kit for about $14 dollars. But it says manual sunroofs. But I think this should be fine too.

https://mercedessource.com/store/ear...and-repair-kit here's the mercedes automatic sunroof kit. But this one is about $45 dollars I think it's worth it. It comes with all the tools to grease your sunroof. Instead of paying $500 - 1000k for a new sunroof. $45 bucks is fine for me.

Thanks for those links Vlad957, I will be looking into proactive maintenance rather than reactive.. Like you said, repairs or replacement can cost hundreds, if not a thousand or so to replace.

Try white lithium grease. That stuff is awesome. And stays on a very long time, I have an E-320 2003, never had a problem with my sunroof. What I did have a problem with once was when it would rain my head liner and front passenger floor rub would get wet, I unclogded the drain channels on my sunroof and problem solved

People are saying don't use lithium grease because it can start getting runny on a hot day. And people say that dust sticks to it. Every where I read people say to be really careful with the stuff you use to lubricate the sunroof. I read that the special grease that mb offers prevents dust and dirt from sticking to it. HERE'S a PDF file on which parts to clean and grease on our power sunroofs. IT looks fairly easy. Just use a soft micro fiber cloth or Terry cloth to clean the rails.