AC blows cold but no heat. Any thoughts?

1985 MERCEDES BENZ 380SL
199,000 MILES
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PENDRY
  • MEMBER
  • 1 POST
When I roll the temp control from cold to hot nothing happens
Nov 27, 2011 at 10:18 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Check if it has a heater control valve and also check the air blend door could be stuck in the cold position-
Nov 27, 2011 at 10:31 PM
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