Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2011Q5 QUATTRO (8RB) V6-3.2L (CALB)REPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGSOLAR SENSORSERVICE AND REPAIR
2011 Audi Q5 Quattro (8RB) V6-3.2L (CALB)
Solar Sensor: Service and Repair
2011 Audi Q5 Quattro (8RB) V6-3.2L (CALB)SECTION Service and Repair
Sunlight Photo Sensor (G107)
• There are different versions of the sunlight photo sensor, observe the correct allocation. Refer to Electronic Parts Catalog (ETKA). If a Sunlight Photo Sensor is installed that is not intended for that vehicle (there is a different signal than the one intended in that Climatronic Control Module (J255) ), the Climatronic Control Module cannot evaluate the signal from the sunlight photo sensor and the A/C system is not regulated correctly.
• The following illustrations show the location of the components on an Audi A5 Coupe; an Audi A5 Sportback, Audi A4, Audi Q5 etc., the location of the components varies slightly. Removing and installing the components is the same as described for the Audi A5 Coupe.
Removing
- Turn off the ignition.
- Carefully remove the sunlight photo sensor - A - from the defroster vent - B - (for the windshield) using a small screwdriver..
• While doing this, be careful not to damage the surface of the sunlight photo sensor cover - A - and the defroster vent - B -.
- Disconnect the connector - C -.
Installing
Installation is carried out in the reverse order while observing the following.
- Switch on the ignition.
- After installing, check the Climatronic control module DTC memory and erase any displayed faults using the Vehicle diagnostic tester in "Guided Fault Finding".
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.