2003 Mercedes Benz 320e HEATER

2003 MERCEDES BENZ E320
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TBABY66
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  • 1 POST
2003 Mercedes Benz 320e 6 cyl All Wheel Drive Automatic 82K miles

MY HEATER BLOWS OUT COLD AIR ONLY. i CHANGED OUT THE THERMOSTAT AND IT STILL DOESN'T WORK. WHAT ELSE COULD IT BE
Feb 2, 2009 at 11:23 AM
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GFIMOTORCARS
  • ✓ASE Certified Mechanic
  • 673 POSTS
  • ASE Certified Mechanic
You are more than likely experiencing a failed heater exchange valve. This is mounted on the firewall and will have a sending and return coolant line coming from it.
Mar 31, 2009 at 11:46 PM
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