By normalizing , the counter state in the overhead control panel control module (N70) for the position measurement is linked to the effective position of the tilting/sliding roof (SR). Normalization must be performed if the overhead control panel control module (N70) was disconnected from the voltage supply (e.g. by disconnecting the battery, removal/installation of the control module), or a denormalization has taken place.
With a non-normalized tilting/sliding roof, the overhead control panel control module (N70) does not know the position in which the roof is located and the direction in which tilting/sliding roof motor (M12/1) has to move to close the tilting/sliding roof. Therefore, normalization is the prerequisite for the close tilting/sliding roof and convenience closing functions.
Performing normalization
Open the tilting roof using the tilting/sliding roof switch (N70s1) until lock-up of the tilting/sliding roof motor (M12/1),
The tilting/sliding roof is now in the normalized state.
In other words, the overhead control panel control module (N70) can now switch off the motor when opening the tilting roof before the lock-up position is reached.
This state is retained provided denormalization does not occur.
Re-normalization
Re-normalization takes place after
in the normalized state the 'open tilting roof' function has been performed 50 times, or
the tilting/sliding roof switch has been pressed for more than three seconds in the 'open tilting roof' direction although the zero position has already been reached.
