POOR HEAT S430 MERCEDES CLICK SEARCH -

  • Tiny
  • Jzwick
  • 2000 MERCEDES BENZ 430E
  • 150,000 MILES

Heat blows but never gets hot or comes to temerature set on climate control AC works good

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Tuesday, December 13th, 2011 AT 5:57 PM

1 Reply

  • Tiny
  • DrCranknWrench
  • EXPERT
  • 3,457 POSTS

If you have a temp gauge, and I am pretty sure you do, and the vehicle is reaching operating temperature then there is a problem with the heat valve actuator or the air mix door actuator. You can pull trouble codes to be more certain.

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Tuesday, December 13th, 2011 AT 7:01 PM

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