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sprinkles08, ASE Certified Technician
Category: Mercedes
Satisfied Customers: 22675
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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2003 ml 350 no heat and will not push air up to defrost and

Customer Question

2003 ml 350 no heat and will not push air up to defrost and ac still running
Submitted: 1 year ago.
Category: Mercedes
Expert:  sprinkles08 replied 1 year ago.

Hello and welcome to JustAnswer!

Rather than a temperature issue, if there is a problem with airflow that may be what you're perceiving as a lack of heat. It sounds as if you may have a blower motor issue. If the blower motor isn't running or is running slowly then you'll have little or no airflow.

Do you hear the blower motor running?