Sunroof partially opens and closes...123 CD - Page 3 - PeachParts Mercedes-Benz Forum

Daman858 · #31 04-29-2011, 01:18 PM

I don't know the properties of MB grease but I have been told by more than a few MB mechanics to use nothing but the special grease. The bicycle stuff is good for the radio antenna but not the sunroof.

The tube I spoke of is to the rear of the sunroof panel and it is what the cable from the motor runs through. It is pretty fragile and bends easily. You can't see it until you remove the headliner panel.

Cr from Texas · #32 04-29-2011, 01:32 PM

Quote:

Originally Posted by skibummer

I have done everything you mentioned besides removing the chrome and cleaning under them. I did however use Q-tips and rags to clean the dirt from the track. There were a few pieces of debris in the area, which I removed, other than that the unit is actually really clean and rust free. It seems as though the point of contact from the roof as it slides forward is too high or the SS arms on each side that make contact are too low. I thought there may be a way of adjusting this contact point???

My grandson watched a soccer game standing in the open sunroof. He managed to get the mechanical linkage undone and I had the same problem. It was easy to snap back into place once I diagnosed how it was supposed to work. Car is gone so I have nothing to look at to refresh my memory.

panZZer · #33 04-29-2011, 01:55 PM

Quote:

Originally Posted by Daman858

Whatever you do, do not bend that tube that the sunroof cable rides in. You will never get it straight again and it is a bear to replace.

I was told not to use anything but the MB sunroof grease.....clean the rails and other parts with alcohol only then apply the grease. You can get the grease in a small plastic container for much less than the dealer package, about $10 I think. Just google "Mercedes sunroof grease". The problem is that WD40 or lithium grease does hold dirt which makes problems for the roof.

So how is someone supposed to clean the inside of the cable tube--theres not a snake made for this is there?

will_t · #34 02-09-2015, 11:57 AM

Quote:

Originally Posted by FRANKNBENZ

Seated in either forward seat, grasp the forward edge of the headliner about six inches on either side of the centerline, pulling down firmly, BUT with perfect control. The trick is NOT to pull down a distance greater than one inch. The clips will pop, center to the sides in order. Possibly the two on the extreme ends may still be seated. Work to either end and do these individually.

The objective is to gently bend the forward edge of the headliner into a shallow concave “smile”. This shortens the horizontal width and pulls the leading sides of the headliner out of its tracks. A larger smile, more of the headliner will come out. Now gently pull the headliner, still smiling, forward and probably down, over the dash. The normal SOP is roof back 2”, free clips, roof fully back, headliner up and out. I’ve done it up or down, same-same, just be careful.

Once inside, all the mysteries that once were the sunroof assembly should all be made plain.

Good luck.

Is it possible to remove the headliner in this manner with the sunroof in the fully closed position? Mine is, and since operating my switch pops the fuse I would like to see if I can disconnect the cable and move the sunroof manually. Thanks!