Important! Initialise power window regulators

When programming or encoding of the front electronic module (FEM) is complete, the front power window regulators must be reinitialised. When programming or encoding of the rear electronic module (REM) is complete, the rear power window regulators must be reinitialised.

Initialise power window regulators

On initialisation of the power window regulators, two parameters are learned by the control unit:

-	Upper end stop (normalisation of the power window regulators).
-	Power consumption for opening and closing (learning the characteristic curve).

Preconditions

The following prerequisites must be met to ensure initialisation can be carried out correctly:

-	Vehicle stationary.
-	Sufficient battery voltage, if necessary. Connect battery charger.
-	Terminal 15 switched on.
-	All doors closed.

The initialisation can be carried out using the control switch in each door or the switch block in the driver's door.

Erasure of initialisation

Deleting an initialisation and subsequent re-initialisation can remedy sporadic incorrect shut-downs in automatic mode (toll function).

Execution

Open the window of each door completely. Press and hold in the operating switch completely (switch position: automatic mode) for longer than 15 seconds and less than 20 seconds.

The deletion of the initialisation was successful when the automatic mode (toll function) is no longer possible for the "Close window" function.

Performing the initialisation

The re-initialisation is carried out as follows:

-	Fully close the window by pulling the switch so that the top end stop is reached.
-	The switch must remain pulled during the procedure.
-	The power window is initialised when the top end stop is reached.

The initialisation was successful if the window can be opened and closed without errors in Automatic mode (toll function).