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1998 Mercedes-Benz C230

Question: noise under the hood

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seattleguy, Seattle, WA, February 21, 2009, 00:54

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I get a noise under the hood which sounds like the tensioner pulley (but is not) that seems to be coming from the AC compressor but it stops when I turn the heater fan off. Any ideas?

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• Answer #1

  Bret Bodas February 21, 2009, 16:07
  

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  It sounds like you have an A/C compressor noise. Turn the heater on, but turn the a/c swich off, and see if the noise goes away
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  seattleguy, February 22, 2009, 13:06
  

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  The climate controls allow one to set the desired temperature. There is not a specific on/off switch for the heater or AC. By turning down the fan it turns the heater or AC off and the noise stops.
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• Answer #2

  Visitor, September 18, 2010, 14:32

  my car did that i replace the pulley and the tensioner and it still make that noise
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