Mechanics

NOISE COMING WHEN YOU TURN AIR ON

2004 Mercedes Benz C240

Noises problem
2004 Mercedes Benz C240 6 cyl All Wheel Drive Automatic 80,000 miles

Hi, I have a 2004 mercedes benz C240. Ive noticed a that whenever my air is on there is a rattling squeaky noise coming from the car but as soon as I turn it off the noise goes away. The heat and air conditioning work fine except for the rattle any ideas what this could be?

thanks, Julian
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Jdian
January 24, 2010.




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