Mechanics

SUN ROOF WON'T OPEN IT JUST MAKES NOISE

2003 Mercedes Benz C320 • 123,000 miles

I just bought a 2003 Mercedes C320 coupe. The panormic roof blinds open and close but I can't get the Sun roof to open. I hold the button all the way untill the blinds fully open. Then I attempt to open the roof and just hear a thumping noise coming from the roof. The blinds open and close normally I think. They open in stages. First they move open 2-3 inches and stop. Then I hit the open button again and they move another 2-3 inches. I repeat this until they are fully open. Then when I use this same button to open the roof I just hear a low "Clump!". I must say that the owners manual is 'very' vague about most of the features on this car.
Any suggestions would be greatly appreciated!

Best regards,

William W
Avatar
Williamw9125
March 8, 2012.




This maybe how it operates. Call the dealer to get the proper oper.

Cadieman
Mar 8, 2012.


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