Audi Q3: Humidity Sensor -G355-, Removing and Installing

Humidity Sensor -G355-, Removing and Installing, Vehicles without Driver Assistance Systems Front Camera

  Note

• Only on vehicles with an automatic climate control system
• There are different versions. Refer to the Parts Catalog.

Removing

- Remove the interior rearview mirror. Refer to → Body Interior; Rep. Gr.68; Interior Rearview Mirror; Interior Rearview Mirror, Removing and Installing.

- Spread the cover -1- on both sides slightly -arrows- and remove it from the interior rearview mirror base -2-.

- Disconnect the connector -2-.

- Using a small screwdriver -3-, carefully press the Humidity Sensor -G355--item 4- off of the cover -1--arrow- and at the same time remove it upward.

Installing

Installation is done is reverse order, observe the following:

- Carefully insert the humidity sensor into the side guides.

  Note

If the Humidity Sensor -G355- is not inserted correctly, the cover cannot be installed.

- Install the interior rearview mirror. Refer to → Body Interior; Rep. Gr.68; Interior Rearview Mirror; Interior Rearview Mirror, Removing and Installing.

Humidity Sensor -G355-, Removing and Installing, Vehicles with Driver Assistance Systems Front Camera

  Note

• Only on vehicles with an automatic climate control system
• There are different versions. Refer to the Parts Catalog.

Removing

- Remove the interior rearview mirror. Refer to → Body Interior; Rep. Gr.68; Interior Rearview Mirror; Interior Rearview Mirror, Removing and Installing.

- Release the mounting tabs -1- and -2- using a screwdriver -3-.

- Disengage the rear cover -4-.

- Release the mounting tabs -arrows- and carefully fold the upper cover -2- slightly upward.

- Disengage the mounting tab -1- on the front cover -3-.

- Remove the upper cover.

- Disengage the hooks in the direction of -arrow- and remove the front cover -2- downward from the guide braces on the rearview mirror base -1-.

- Release the clips -2--arrows- and remove the Humidity Sensor -G355--item 4- from the rearview mirror base -1-.

- Disconnect the connector -3-.

Installing

Installation is done is reverse order, observe the following:

- Install the interior rearview mirror. Refer to → Body Interior; Rep. Gr.68; Interior Rearview Mirror; Interior Rearview Mirror, Removing and Installing.

After-Run Coolant Pump -V51- / Heater Support Pump -V488-, Removing and Installing

  Note

• Depending on the engine version to support the engine coolant pump an After-Run Coolant Pump -V51-/Heater Support Pump -V488- may be installed (different designations depending on the engine). Refer to → Engine Mechanical; Rep. Gr.19; Coolant System/Coolant (Connection Diagram for Coolant Hoses) and → Wiring diagrams, Troubleshooting & Component locations. The After-Run Coolant Pump -V51-/Heater Support Pump -V488- can be actuated in "stop mode" (engine stopped) to maintain the coolant flow rate through the heater core for the heater on with a cold engine or on vehicles with a Start/Stop System.
• Different versions depending on the engine After-Run Coolant Pump -V51-/Heater Support Pump -V488-.
• The After-Run Coolant Pump -V51-/Heater Support Pump -V488- is installed in the coolant circuit depending on the engine version. Refer to → Engine Mechanical; Rep. Gr.19; Coolant System/Coolant (Connection Diagram for Coolant Hoses) and → Wiring diagrams, Troubleshooting & Component locations.

To remove and install, refer to → Engine Mechanical; Rep. Gr.19; Coolant Pump/Thermostat (Overview - Electrical Coolant Pump).

Special Tools

Special tools and workshop equipment required

• Vehicle Diagnostic Tester
• Wrench - Door Adjusting - Joint -3320/1-
• Engine Bung Set -VAS6122-
• Ultrasound A/C Cleaner -VAS6189B-
• Ultrasound A/C Cleaner - Airco-Clean Fluid -VAS6189/1-
• Suction Nozzle With Brush -VAS6288-
• Dryer Element Plug Socket -T10128- for version "2"
• Refrigerant Sockets -T10364-
• Commercially available vacuum cleaner

Edition: A005A000921 - FU - 12/10/2014 - TMP.

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