C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

half windshield defrost

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Old Dec 2, 2014 | 12:37 PM
  #1  
gaster's Avatar
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03 c320
half windshield defrost

Now that winter has set in I have noticed that only the passenger side of my defrost is blower air. I have read the articles about the stepper motor but I don't have any clicking noises. The odd thing is when I first start the car air blows out both vents and then after about 30 seconds it goes to passenger side only. I tried the normalization procedure and while that is cycling I get air out of both vents but I read normalization should only take 30 seconds but mine never finishes. It has cycled for 15 minutes and I finally just shut off the car. Any ideas are appreciated! I am not afraid to pull the whole thing apart I just want a idea what I am looking for. Thanks!!
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Old Dec 3, 2014 | 12:37 PM
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cvx's Avatar
cvx
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From: Finland, Europe
W203 C200CDI
One of mine motors didnt click either but had broken linkage. Same is going on for you there I think. Get codes readed with Star which pinpoints the exact location of broken motor(s) or link(s). And get ready for $1k+ bill if you decide to use dealer.

The stepper motor thread is full of guys with broken links aswell, also there is DIYs available. Good luck
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Old Dec 3, 2014 | 12:54 PM
  #3  
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03 c320
Originally Posted by cvx
One of mine motors didnt click either but had broken linkage. Same is going on for you there I think. Get codes readed with Star which pinpoints the exact location of broken motor(s) or link(s). And get ready for $1k+ bill if you decide to use dealer.

The stepper motor thread is full of guys with broken links aswell, also there is DIYs available. Good luck
Thanks for the reply, what through me off was the fact that it does work on start up for about 30 seconds. i would think if the it was a motor or linkage i would never get air our of the drivers side.
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Old Dec 6, 2014 | 10:19 AM
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late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
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