Mercedes M Class Mercedes ML350 and Mercedes ML500 SUV's.

Hissing sound

Old Apr 5, 2012 | 03:03 PM
  #1  
tsmith's Avatar
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Default Hissing sound

I have a 02 ML500 with 62,000 miles. When I let off the brake petal there is a hissing sounds coming from the brake petel. It's been doing for a while but is getting louder. Any help is appreciated
 
Old Apr 5, 2012 | 04:17 PM
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Default

bad brake booster ! ive done a bunch of them for that same problem. usually about 3-4 hours labor at the dealership
 
Old Apr 6, 2012 | 08:36 AM
  #3  
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Default Hissing sound

Hi chassis221

Thanks for the info.
 
Old May 1, 2012 | 09:51 AM
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Default No Volume

The radio is on but there is no volume. I have tried turning it off for a while but still nothing. Anyone have any ideas?
 
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