Audi Q3: Temperature Regulator Door Motor -V68-, Removing and Installing

  Note

• Only for vehicles with a manual climate control system (or heater without Air Conditioning (A/C) system).
• The color-coded connecting elements on the actuator for the identification has been discontinued as a running change as of 10/2013 for those connecting elements installed by the manufacturer and delivered as a replacement part. Additionally the connecting elements are no longer preinstalled on actuators that are delivered as a replacement part. Refer to → Chapter "Actuator Information" and the Parts Catalog.
• The actuators and the associated connecting elements differ. In some cases, however, the differences are so small that they are not always easy to detect at first glance. If a different version of the actuator or a connecting element is installed than the designated version, it usually leads to problems when the basic setting is to be performed. Refer to → Chapter "Actuator Information" and the Vehicle Diagnostic Tester in the "Guided Fault Finding" function.

  Caution

Problems with the A/C system (heater) function after installing the incorrect version of components

• Different actuator versions can only be distinguished by their part number on the outside.
• The connecting elements are to some extent very similar and are not always easy to detect at first glance.
• If possible, only install an actuator if the new component to be installed is available with the related connecting element.
• Before installing, make sure that the actuator is the right one and the connecting element being installed is correctly allocated.
• If possible, only dispose of the removed components after having checked the function of the newly installed components.

Removing

- Note the general information. Refer to → Chapter "Actuator Information".

- Remove the instrument panel. Refer to → Body Interior; Rep. Gr.70; Instrument Panel; Instrument Panel, Removing and Installing.

- Remove the data bus on board diagnostic interface. Refer to → Electrical Equipment; Rep. Gr.97; Control Modules; Data Bus On Board Diagnostic InterfaceJ533, Removing and Installing.

- Free up the wiring harness -2-.

- Release the tab -3- and remove the mount -1- from the pedal assembly -arrow-.

- Remove the bolts -B-.

- Free up the wiring harness on the bracket -A-, disengage the cable channel and move to the side.

- Remove the bolts -D-.

- Push the heater core cover -A- slightly to the side at top and remove the actuator -B- from the temperature door shaft.

- Mark the connector and the actuator.

- Disconnect the connector -C-.

- Loosen the connecting rod -F- from the actuator operating lever -E-.

• Turn the actuator so far until the operating lever opening and the latch on the operating lever align.

- Remove the actuator from the operating lever.

Installing

Installation is done is reverse order, observe the following:

- Pry out the connecting element (here the operating lever -E-) from the actuator to be replaced (or select from the set of connecting elements) and install in the new actuator to be installed. Refer to → Chapter "Actuator Information".

- Install the actuator operating lever on the connecting rod -F-.

- The mount for the connecting rod -F- can only be installed in one position on the operating lever -E-.

• The mount for the connecting rod -F- must align with the operating lever -E- as shown in the illustration.

  Note

If the mount for the connecting rod -F- and the operating lever -E- do not align, turn the mount in the actuator. Note the general information. Refer to → Chapter "Actuator Information".

- Connect the connector.

- Attach the actuator to the air distribution housing.

• There must not be any play in the connection between the actuator, shaft and connecting rod -F-.

- Carefully tighten the screws (tightening specification 1 Nm).

- Install the wiring harness so that it cannot come in contact with any moving parts (for example, the lever on the actuator).

- Install the data bus on board diagnostic interface. Refer to → Electrical Equipment; Rep. Gr.97; Control Modules; Data Bus On Board Diagnostic InterfaceJ533, Removing and Installing.

- Install the instrument panel. Refer to → Body Interior; Rep. Gr.70; Instrument Panel; Instrument Panel, Removing and Installing.

After completing the repair work, perform the following operations on the control head using the Vehicle Diagnostic Tester in the "Guided Fault Finding" function:

- Check the DTC memory and delete any currently displayed entries.

- Perform the basic setting.

- Perform output diagnostic test mode (DTM).

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