Hi there... i've noticed that after some time my sunroof has started to be filled by dust mixed with this grease that exist in the rails... After some searching i found that there is some kind of 'special' grease for lubricating sunroof parts...
I found the code from WIS 001-989-14-51 or 001-989-46-51 (Sun roof lube) but also found the information that this grease is mercedes expensive part!!!!
In Canada, a small bottle (about the size of an aspirin bottle) was $70. When I rebuilt the sunroof on my 300SEL, the parts guy told me to bring the ass'y to the shop in a plastic bag and he lubricated the thing for me with this magic grease and he charged me $10, which I thought was nice. You only need a smidgen and a whole container will last you a lifetime.
Might be a time when its worth paying the dealer to do the maintenance?
I do not see why any good quality waterproof white grease would not do the job nicely. Yes, a very thin film is all you want. The more grease you have, the more dust it will attract and collect.
I do not see why any good quality waterproof white grease would not do the job nicely. Yes, a very thin film is all you want. The more grease you have, the more dust it will attract and collect.
Well Robert,......yes and no!!
Seeing as I dipped my old Camry in grease and oil on many an occasion.
All greases are not created equal.
When and if the lube touches the different rubbers on our cars, different things happen.
The engine hood seal increased in length dramatically and I was left with a long serpentine rubber snaking across where a straight seal was before.
At the back tailgate, the rubber seal shrunk and I had to fill the missing inches with silicone to keep the seal.
There are great silicon greases which are expressly made for rubber contact and "0" ring lubes.
The product that I use is made by Dow Corning and I've had the same tube for 10 years.
It's called "55 0-Ring Lubricant.... good for - 65C to 177C. It's a thin pinkish grease and is easy to work with.
I haven't seen any negative effect on the B and has had no effect on the paint where the door seals touch.
They also make good "synthetic" greases and oils in sprays. If it doesn't touch the paint or rubber then maybe a product like that would work also.
I'd love to know the "secret" composition of that overpriced MB grease.
Cheers, Derek
Last edited by Derek Lecours : 03-31-2008 at 07:52 AM.
I believe you need two types of lubricant to properly lube the sunroof.
You will need silicone lube for the rubber seals and lithium for the sliding metal parts. You should not use lithium, or any grease, on rubber.
This is a case of less is more - better to use less grease than too much.
'Q Tips' are good to apply a little lithium grease, only to those parts that should be lubed.
Well, the PO of my Merc used lithium grease and the sliding roof was so gummed up that eventually the complicated tracking broke. If you lease yer car, grease away. If you want to keep it, use "the grease."
I don't know where the lamella roof motor is, but in the sedans it was in the trunk with a loooong cable. Go for it.
Thanks guys for all this useful info.. i am still looking for this magic grease as i found some people stating much lower values for the original one..
Also because some of you said about lubricating the rubbers, i know for silicone is good but in my previous 206CC i used to lubricate & clean the rubbers of the roof with normal mineral oil and had no problems for 3 years.. what do you think of this way of maintenance? Is better the oil for 'feeding the rubber or silicone?
George....When it comes to the rubber seals, don't take chances with an unknown product. The cost of changing all the door and hood seals if a bad reaction takes place $$$$ would be huge.!! Derek
Linear Mode
