(54 13 Notes on panorama glass roof (initialization/standardization/learning of characteristic curve))

Initialization comprises: 

• Normalization
• Learning characteristic curve

The mechanical end positions are recorded and stored during standardization.

The characteristic curve is learned immediately after standardization.

When the characteristic curve is learned, the mechanical closing forces of the panorama glass roof are recorded and stored for correct operation of the crush guard.

Initialization should be carried out in the following situations: 

• if the panorama glass roof has been mechanically shifted by means of the emergency actuator
• in the event of malfunctions, e.g. no one-touch mode, no opening or no comfort function possible
• after disengagement of the drive unit
• after repair work is carried out on the mechanism of the panorama glass roof
• after exchange of the control unit

Ensure adequate voltage supply during initialization.

If necessary, recharge battery.

Calibration: 

• Panorama glass roof can be initialized in every position
• Operate the switch during the entire process
• Operate and hold down the switch in the first of the two possible positions towards "Close"
• Open panorama glass roof closes and opens as required
• Continue operating the switch in this switch position
• Standardization occurs after approx. 10 sec.

Fig 1: Holding Down Switch

Courtesy of BMW OF NORTH AMERICA, INC.

Learning characteristic curve: 

• Continue operating and holding switch in first position towards "Close" after standardization
• Panorama glass roof fully closes and opens
• Release the switch when the panorama glass roof is closed