01 S500

  • Tiny
  • big eric
  • 2001 Mercedes Benz S500
  • V8
  • 2WD
  • automatic
  • 127,000 miles

The heat works fine when sitting still. When I get up to 55 mph it turns cold.I have replaced the water pump, thermostat and heater control valve. The problem still exist. Please help I dont know what else to do.

Do you
have the same problem?
Wednesday, January 26th, 2011 AT 11:28 PM

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