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.
  Fig 1: Identifying Actuator

  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.

Vehicles on which the actuators are replaced or were installed in another position

-- Additionally perform the addressing of the adjustment motors to do so precede as follows.

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:

• Body
• Heating, Ventilation & Air Conditioning
• OBD-capable systems
• 08- A/C/Heater Electronics - E87
• 08- A/C/Heater Electronics - Functions
• 08 - Basic Setting
• → Basic setting 1, automatic adjustment motors addressing

Continuation for All Vehicles

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:

• Body
• Heating, Ventilation & Air Conditioning
• OBD-capable systems
• 08- A/C/Heater Electronics - E87
• 08- A/C/Heater Electronics - Functions
• 08 - Basic Setting
• → Basic setting 2, programming door end stops