I had heard squeeling on my 98 C280 with 58000 miles for a week or two and decided to look the belt over then I noticed the rubber out of the harmonic balancer I guess I was lucky to catch it as the rubber is completly out for about 1/3 of the pulley (I can actually get my fingers behind it).
Its unlikely the dealer will do me any favors and fix it so I would like to try it myself. I saw mention of where to get parts so my questions are should I even try to get the dealer to fix it gratis. and where could I get the parts?
I could post a photo if anyone would like to see it

Thanks
Bob