Operation CHARM: Car repair manuals for everyone.

Preconditions

Preconditions
The glass sunroof must be clean and be at room temperature. Terminal 15 ON must be applied. When the glass tilt sunroof is subsequently initialized using the control button, this button must remain pressed until the initialization procedure is concluded.
The control button is pressed and held in the lift sunroof direction. The initialization run starts up approx.15 seconds after pressing the control button.