Mercedes-Benz SLC 300 2019 Operator's Manual page 86

Roof
84
Problems with the roof
Problem
The roof will not open or
close.
Possible causes/consequences and M M Solutions
The trunk partition is not closed and not properly engaged.
Close the trunk partition (
X
The trunk lid is open.
Close the trunk lid (
X
Y
The on-board voltage is too low.
Leave the engine running.
X
The roof has been opened and closed several times in a row. The
roof drive has switched off automatically.
You can open and close the roof again after approximately ten
minutes.
Switch off the ignition and turn it back on.
X
Repeat the opening or closing procedure.
X
The automatic roof system is faulty.
Visit a qualified specialist workshop.
X
page 80).
Y
page 74).