Audi Q3: Air Quality Sensor -G238-, Removing and Installing
Removing
- Remove the plenum chamber cover. Refer to → Body Exterior; Rep. Gr.50; Bulkhead; Plenum Chamber Cover, Removing and Installing.
- Release the securing tab -4- and turn the housing -1- for the Air Quality Sensor -G238- counter-clockwise -arrow-.
- Remove the housing from the rain water drain channel -2- for the fresh air intake.
- Disconnect the connector -3-.
Note
Do not store a removed Air Quality Sensor -G238- in areas where it can come into contact with solvents, fuels, and certain chemical compositions (fluids or vapors).
Installing
Installation is done is reverse order, observe the following:
Note
- So that no water enters into the A/C unit (heater) via the rain water drain channel -1- when the plenum chamber cover -2- is installed, the plenum chamber cover must not be damaged.
- If the plenum chamber cover is damaged or is installed incorrectly, water can flow into the fresh air intake duct via the rain water drain channel.
- The plenum chamber cover must be completely engaged in the windshield frame -3-. Refer to → Body Exterior; Rep. Gr.50; Bulkhead; Plenum Chamber Cover, Removing and Installing.
- Install the plenum chamber cover. Refer to → Body Exterior; Rep. Gr.50; Bulkhead; Plenum Chamber Cover, Removing and Installing.
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Outside Air Temperature Sensor -G17-, Removing and Installing
Note
Complaints may arise regarding the Air Conditioning (A/C)
system regulation if there is a faulty measured value for the
Outside Air Temperature Sensor -G17-. Refer to Vehicle
Diag
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 diffSEE MORE:
Start/Stop system
Applies to: vehicles with Start/Stop system
The Start/Stop system can help increase fuel
economy and reduce CO2 emissions. In Start/
Stop mode, the engine shuts off automatically
when stopped, for example at a traffic light.
If certain conditions are met, the engine may
stop before the vehicle has
Wheel bolts and rims
Wheel bolts
Wheel bolts must be clean and loosen/tighten
easily.
Rims
Rims with a bolted rim ring or with bolted wheel
covers consist of multiple pieces. These components
were bolted together using special bolts and a special procedure. You must not
repair or
disassemble them.
WARNING
Wheel bolts t