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

Stepper motor problem

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Old 09-18-2014, 04:50 PM
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2007 C280
Stepper motor problem

I've had this problem for at least 2 years now in my 2002 C230K...clicking that goes away in about a minute after I start the car. What are the consequences of not fixing the problem? My AC and heater work perfectly fine now.
Old 09-19-2014, 07:19 AM
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2017 GLA 250, 2011 C63 P31 (p30 w/ lsd) (in repair), 2005 C230 Sport Eurocharged, 2003 C320~sold
Nothing will happen other than your vents won't work properly and the annoyance of the noise. You can fix it easily enough by following these instructions https://mbworld.org/forums/c-class-w...ml#post5386965

Don't buy anything until you know for sure what the trouble is. If its a stepper motor that's harder to get to you can move it to another location that's easier to get to for when you do get the replacement part.
Old 09-19-2014, 10:45 AM
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Excellent write-up but I wouldn't even attempt to do it...I know my limitations!

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