2003 ml500 No heat freezing outside help! - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 02-10-2012, 01:56 AM Thread Starter
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Vehicle: 2003 ml500
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Exclamation 2003 ml500 No heat freezing outside help!

Hello, I have a 2003 ml500, i have no heat. I went to a benz specialist he told me i needed to change the heat auxiliary pump and so i did...Still no heat. i have looked around in other posts on this site and i saw people talking about blend air motor or a flap actuator. The part number for models 2002 and older is 163 820 0108. the part number i found for 2003 models is 203 820 1642 but its called a flap actuator or a STEPPER motor. So i am very confuised and frustrated to what all these motors and actuators are. Can someone just tell me what i need for a 2003ml500 with no heat.Is 203 820 1642 the right part number i need??? plzzzz help
Also my center vent doesnt blow any air and i cant control where i want the air to be blown anymore.
I love this SUV but im 24 years old and its giving me gray hairs !!
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post #2 of 2 (permalink) Old 02-11-2012, 04:20 AM
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