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INTERIOR LIGHT ROOF

3K views 5 replies 3 participants last post by  ressoneca 
#1 ·
Hi everybody,
I began to notice that the INTERIOR LIGHT ROOF of my 2000 170 CDI is alway making an electric noise, a buz. Even with the car switched off, is that normal? It`s time to change it?
Thank you
 
#4 ·
The fan is part of the interior temp sensor for the AC system and it gets a little clogged with dust and then makes a noise, cleaning it out with compressed air usually works.
 
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