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  #1  
Old 09-20-2009, 12:44 PM
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Join Date: Sep 2005
Posts: 175
Wife going crazy due to buzzing sound

78 300D that has a buzzing sound behind the climate control. I found out that my vacuum check valves (2 of them) sometimes vibrate and make a buzzing sound like your letting air slowly out of a balloon. I'm thinking the climate control switch thing is not shutting off the vacuum when it needs to. How the heck does one get that climate switch thing out anyhow ???? Do I have to remove the entire center console?

Any ideas??

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  #2  
Old 09-20-2009, 01:23 PM
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Location: Oakland California
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Early w123 has a different cc.
why dont you post a picture?
Ep
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W123 1985 300TD naturally aspirated
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  #3  
Old 09-20-2009, 01:51 PM
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I'll get a picture.. There are 5 push buttons in the middle, temp dial of the left and an AC on/off switch on the right.

P

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