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AUTO LAMP FEATURE I...
 
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AUTO LAMP FEATURE INOPERABLE

  

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Hey there!   I have a 2009 c300 with 87k miles.  I’ve gotten the Auto lamp Feature Inop message on the display.   I was told that more than likely it was the sensor by the rear view mirror that detects rain and (obviously) dusk…so I replaced it.  Easy to do.  Ridiculously expensive for what it is ….

didn’t fix it - surprise!

 

any thoughts on other parts I could try?


1 Answer
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Before throwing parts, you need a pro to scan the car and tell you exactly what is wrong. 


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