Manual Operation

SUNROOF

DESCRIPTION AND OPERATION

76-6-3

Operation

General

Sunroof Controls

1 Access panel for motor drive output shaft

2 Sunroof switch

The sunroof is operated by the three-way switch, via the Body Control Unit (BCU), with the following switch position 
options:

l

Rest position

l

Open sliding/tilting sunroof (sliding open)

l

Open by pressing and holding (one-touch function for sliding open)

l

Raise sliding/tilting sunroof (tilting open)

l

Close sliding/tilting sunroof (sliding shut/tilting shut)

l

Close by over-pressing (one-touch function for sliding closed).

The drive is automatically shut down when the limit positions are reached. Limit position shutdown is initiated by the 
integral increment sensor isolating the motor. Limit position shutdown occurs even if the control remains actuated or 
is operated a further time in the direction of the limit position.

If a failure of the sunroof motor occurs, the sunroof can be closed manually. Access to the motor drive output shaft, 
in the roof access panel, enables the fitting of a special key which can be used to manually drive the sunroof to the 
closed position.

The sliding/tilting sunroof is operational with the ignition switch in position II for one-touch operation and position I for 
operating the control. In addition to the basic functional specifications, nationally specific specifications are configured 
via the encoding of the basic module. The necessary signals are transmitted via the P-Bus. If no signals are 
transmitted via the P-Bus, the functions remain limited to manual operation.

NOTE: The encoding functions are configured using TestBook/T4

 The following functions are available:

Manual Operation
The desired sunroof position can be selected by operating the control in the open/tilt/close sliding/tilting sunroof 
positions. The control must be pressed permanently to do this.

M76 4507

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