Heater failure on 2003 Mercedes-Benz E320

what could cause the heater not to work in a 2003 mercedes benz 320E

by in Greensboro, NC on October 15, 2010
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1 answer 2 comments
ANSWER by , October 15, 2010
Many things can cause a heater failure, it is best to do an inspection of the Climate Control System in the vehicle. There is a computer that controls this system and it will have codes to help solve the mystery. here are some shops: http://repairpal.com/directory?address=27407&car_brand_names=Mercedes-Benz
COMMENT by , December 27, 2010
if the fan doesnt blow it probably needs a new blower and regulator. if it blows cold it probably needs a heater control valve near the windshield wiper motor.
COMMENT by , January 02, 2011
Make sure the coolant system is working properly and the trans oil is not mixing with the freeon.