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Diagnosis instructions: Notes

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Initialization of the rain sensor 

To ensure that the optical measuring procedure for the detection of precipitation functions properly, the rain sensor must be adapted to the windscreen.

A prerequisite  for trouble-free initialization is that the windscreen glass is dry, clean and free of defects in the area of the rain sensor.

The initialization is performed using the "Initialize rain sensor" service function in the diagnosis system. The adaptation values stored in the rain sensor are deleted in this service function.

A re-initialization of the rain sensor is required: