My sun roof has been clunking when opening and closing and also it has been rattling when fully open. I've been ignoring it for a few weeks. Now it won't open or close without manual help. I seems like the drivers side isn't moving. When the car was new (it's a 1994 C280) it was worked on a few times by the dealer. It acts like a screw may have just loosened up. How do you get at the tracks? do you have to drop the headliner? Is there something I can look for and fix? Do I need to bite the bullet and bring it to the $$$ Dealer $$$ ?

Thanks
Ken

I own a 1994 C280. I also had trouble with it at one time. However, the solution to my problem is lubricating the track. Mine seemed to not want to slide back and so forth; they were similar symptoms as you described.

Hope that's of any help.

Jonathan

Early 202's did have a few sliding roof problems. MB has updated sliders/brackets etc. Sometimes a clunky roof can be fixed by lubing the jaws and rails. I'd try that first and see if it's better. Good luck

Hi Ken
I had problems with a sunroof on a C250 diesel (202), The way in to the mechanism is via the top. If you cant open the roof, the trick is to 'unpop' the inner sunroof lining, & slide it back. Dont try to drop the headliner, it wont help. Look at thread "sunroof on W202" on this forum

Peter
Thanks for the info. I'm having the exact same problem you are having. I'll send it to the $$dealer$$ and let you know what parts they changed to get it working.

BTW I searched for C280 sunroof before posting but not W202.
Sorry for wasting bandwidth.

Ken

Hi Ken
Yes Id like to see a list of parts a dealer uses to fix it.
I didnt actually repair it, but i did make it watertight. I chickened out when I saw the complexity of it !

I have a 1994 C180 Euro and it had a very stiff sunroof which moved very slowly and struggles doing this. The battery was old, so I changed this and it moved a bit faster, but still wouldn't tilt. I took it to a Benz dealer and they simply slushed a lot of that magic Benz grease along the rails and sides. Now its moving as smoothly as new and it now tilts and untilts without any fuss.

I guess you have to try this before you do anything surgical and dig up everything from the roof. Was told it takes a lot of time and patience. You have to be very careful you don't cause more breakages doing it and while you are reinstalling everything. The dealer here charges about A$1200 to do the whole job including replacement parts. The greasing cost me only labour, about half hour and the grease.

With those noises you mentioned, it seems more like something is very loose, broken or damaged in there and may require some surgical work to be done on it.

I brought my c280 into an independent shop I've use before. He just called with a quote of $1500.00 to repair the sun roof. OUCH.
When I get the bill I'll let you know what parts were replaced.

Ken

I just did the rail replacement on a 94 C220. Took about $250 in parts, including ~$40 for the special lub. Took me no more than 3hrs. No special tools. However, I had a subscription to alldata and spent some time studying before hand. Bought the parts described in a technical bulletin found under the sunroof topic. The parts were bought from a dealer in MD that advertises in the "Star", Valley Motors, and they can be found online. This was the metal sunroof, but the instructions are there for the glass roof repairs in alldata. If you are the least bit handy and have the time save yourself a little money.

UPDATE

Just got my C280 back from the shop for the sun roof repair and as promised here are the damages......
2027800912-Slide Angle 124.00
2027801012-Slide Angle 124.00
1407800914-Bracket- 87.00
1407801014-Bracket- 87.00
2027800089-Cable- 98.00
2027800189-Cable- 98.00
2027800413-Rail,Drip- 53.64
Misc. shop supplies 30.00
Labor- 702.00

About $1500.00 with tax.....

I don't think this would have been a good DIY project.
It took the shop almost 3 weeks to get the car back to me.