Mercedes-Benz S-Class 2020 Operator's Manual page 91

Problem
The sliding sunroof or the front roller
sunblind does not move smoothly.
Possible causes/consequences and
The reversing feature is then not active. Parts of the body could become trapped in the closing area in
the process.
Make sure that no parts of the body are in the closing area.
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Release the button immediately if somebody becomes trapped.
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or
Press the button in any direction during the automatic closing process.
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The closing process is stopped.
If the sliding sunroof is obstructed during closing and reopens again slightly:
Immediately after automatic reversing, pull and hold the 3 button down again to the point of resist‐
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ance until the sliding sunroof is closed.
The sliding sunroof will be closed with increased force.
If the sliding sunroof is obstructed again and reopens again slightly:
Repeat the previous step.
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The sliding sunroof will be closed again with increased force.
Pull the 3 button down repeatedly to the point of resistance until the sliding sunroof is fully closed.
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Pull the 3 button for another second.
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Pull and hold the 3 button down until the front roller sunblind is fully closed.
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Pull the 3 button for another second.
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M M Solutions
Opening and closing 89