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Old 09-30-2003, 08:17 PM
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Join Date: Feb 2003
Location: W. Chester, PA
Posts: 4
Buzzing Noise in '97 E-320

My '97 E-320 makes a strange buzzing noise as soon as I start the car. It's buzzing from the roof section where the light switches and sunroof button are. When I turn the car off the buzz continues for a few seconds and then goes off.

Any ideas??

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Old 09-30-2003, 09:14 PM
Gilly's Avatar
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Join Date: Mar 2001
Location: Evansville WI
Posts: 9,616
You'll see this small air intake up on that dome lamp assembly, inside that air intake is the interior temp sensor. There is a tiny little fan up in there to help draw air across the interior temp sensor. The little fan is probably making the noise.
You can remove the dome lamp assembly and remove the small fan, clean it up and lube it, or just replace it, it's available seperately.

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