2003 C230K Panoramic Sunroof Squeak

[BenzBob]

My wife's 2003 C230K with panoramic sunroof continues to squeak (especially when cold) even after two visits to the dealer to modify it to the new design. The car was built in October, 2002 and I understand there has been at least one design change to address this issue. I also understand that Mercedes has issued a bulletin to address this issue and correct the problem but it has not seemed to correct this issue on my wife's vehicle. I am starting to think that it is time I insist that Mercedes replace the sunroof cartridge with the new design and forget about trying implement the "fix". Any input would be appreciated.