General Information And Procedures - Actuators, Removing And Installing

At the start of production for this vehicle, only the heater and A/C unit manufactured by Mahle "version 1" was installed. In the future, Mahle "version 2" heater and A/C units may also be installed in this vehicle (introduction date TBD). Refer to Parts Information.
Depending on the production date, there can be different versions of the levers and fasteners on the heater and A/C unit. Refer to the Parts Information.
The illustrations show removal and installation on an actuator with an open shaft.
Actuators are equipped with electronics on this vehicle; a new actuator first learns its position on the heater and A/C unit during the basic setting and can then be activated by the Vehicle Electrical System Control Module -J519- (currently all actuators are identical in construction) using the Vehicle Diagnostic Tester.

Actuators -1- with an open shaft -2- on "Mahle" "version 1" heater and A/C unit.

Courtesy of AUDI OF AMERICA, LLC
Mahle "version 2" manufacturer actuators -3- with closed shaft -4- on the heater and A/C unit.

Before removing an actuator, label the position of the connector and the actuator on the heater and A/C unit.
The actuator mount does not have a stop. It turns constantly if the actuator is activated. Therefore, it should not be activated when the actuator is removed.
After installing an actuator, perform the basic setting for the actuators.

Front adjustment motors procedure

-- Connect the Vehicle Diagnostic Tester.

-- Select Diagnostic mode and start the diagnosis.

-- Select the Test plan tab.

-- Press the Select custom test button and select the following tree structure in order: