1999 Mercedes Benz ML430 air condition

1999 MERCEDES BENZ ML430
140,000 MILES • V8 • AWD • AUTOMATIC
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KRIKOR
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  • 3 POSTS
I left the switch on the air circulating on while I turned on the heater now the aircondition does not blow cold air.
Oct 14, 2009 at 7:44 PM
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BIG_JAY
  • ✓ASE Certified Mechanic
  • 121 POSTS
  • ASE Certified Mechanic
The recirculate switch will not have anything to do with if it blows hot or cold. It is just resh air compared to recycled air. You may have a sticking blend door if the car was lowing cold before and not now. Can you hear the compressor turn on when u turn the a/c on?
Oct 14, 2009 at 7:49 PM
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KRIKOR
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  • 3 POSTS
no I use to when I press the air button just the light comes on
Oct 14, 2009 at 7:52 PM
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BIG_JAY
  • ✓ASE Certified Mechanic
  • 121 POSTS
  • ASE Certified Mechanic
If you dont hear the compressor turning on then you may have a mre serious problem. I dont know if you really want to start charging your benz but that is gong to be the ext step. I need to know some readings when u hook up guages to the truck.
Oct 14, 2009 at 8:04 PM
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KRIKOR
  • MEMBER
  • 3 POSTS
ok I will let you know
Oct 15, 2009 at 4:53 PM
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