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The textured circle

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Old 03-05-2021, 08:01 PM
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C Class Executive SE W204
The textured circle

On the dashboard near the steering wheel but quite low down is a circle inset into the plastic, it's slightly recessed and rough textured within the circle. What's it for?

I have a feeling it does nothing at all but I'm curious.



Any suggestions?
Old 03-05-2021, 08:57 PM
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2011 C300 Sport, P1, MM, Wood, Heated FS, DIY rearview camera. 2002 QX4
I never paid attention to that. My best guess is it's the the driver side temperature sensor for climate control. Passenger side does not have sensor; the computer takes the difference between two settings and adjusts the passenger side temperature.
Old 03-06-2021, 06:13 AM
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W204 C220CDI 2011
Originally Posted by C300CA
I never paid attention to that. My best guess is it's the the driver side temperature sensor for climate control. Passenger side does not have sensor; the computer takes the difference between two settings and adjusts the passenger side temperature.
Yes, and there is a fan behind it. Keep it clean.
Old 03-06-2021, 11:26 AM
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C Class Executive SE W204
Originally Posted by alecmascot
Yes, and there is a fan behind it. Keep it clean.
is that a that a wind up?

It does have dust stuck in it but I think the fan thing is a **** take. No mention of it in the handbook.

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