Sunroof broken
(i) Symptoms: stutter, rattle.
(ii) Diagnosis/solution: stutter gone, rattle fixed by dealer -- one of the pieces on the sunroof track was apparently loose and causing a rattle.
(iii) Details: Bought my 2008 C350 in August. My sunroof worked fine for a few days, then started stuttering (open/close). Resynched it myself, following the advice read in this forum -- fixed the opening issue, but not the closing stutter.
Also noticed a rattle from the sunroof. Brought the car in at first 1k mile service, technician could not replicate the rattle and merely resynched the roof. It may have worked for him, but not for me -- stutter upon closing again, the very first time I tried to use the roof. The rattle was still there.
Brought it back to the dealer. This time the service advisor offered to have a technician come with me. The technician was really knowledgeable about the car (kindly showed me how to download all my contacts from a Samsung cell) and, importantly, he noticed the rattle. The dealer kept the car for a couple of days while the service guys unmounted the headliner etc.. This time, they seem to have fixed the rattle and stutter.
Bottom line: Overall, I continue to be impressed with my dealer's service. Fingers crossed.



