Safety functions
- Maximum motor running time
If the slide/tilt sunroof does not reach an end position, the electric motor is switched off after 15 seconds.
- Overheating protection
The heating of the electric motor is calculated in the SHD control module based on a model. The available temperature signals are the outside temperature and inside temperature (via K-CAN). In addition, there is an electronic thermometer (transistor) on the board of the SHD control module.
- Emergency operation
In emergency operation, the slide/tilt sunroof can only be moved for 750 milliseconds at a time.
Emergency operation is possible under the following conditions:
- Coding of the SHD control module invalid
- Signal of a Hall sensor implausible
- Initialization incomplete
- Emergency operation
With an electrical defect, there is an emergency actuating unit for the slide/tilt sunroof. Fold down the cover of the roof operating unit. Place the internal hexagon spanner from the on-board tool kit in the opening at the drive of the slide/tilt sunroof and move the roof in the desired direction.