Q5 Quattro V6-3.2L (CALB) (2009)
Solar Sensor: Service and Repair
Sunlight Photo Sensor
Sunlight Photo Sensor
‹› There are different versions of the sunlight photo sensor (G107), observe the correct allocation. If a sunlight photo sensor (G107) is installed that
is not intended for that vehicle (there is a different signal than the one intended in that climatronic control module (J255) A/C control head), the
climatronic control module (J255) A/C control head cannot evaluate the signal from the sunlight photo sensor ( G107) and the Air Conditioning
(A/C) system is not regulated correctly.
‹› The following illustration shows the location of the components on an Audi A5 Coupé; the Audi Q5 location of the components varies
slightly. Removing and installing the components is the same as described for the Audi A5 Coupé.
Removing
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Switch off ignition.
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Using a small screwdriver, carefully pry out the sunlight photo sensor (G107) - A - from the windshield defroster vent - B -.
‹› While doing this, be careful not to damage the surface of the sunlight photo sensor (G107) cover - A - and the defroster vent - B -.
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Disconnect the connector - C -.
Installing
Installation is carried out in the reverse order, when doing this note the following.
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After installing the Diagnostic Trouble Code (DTC) memory of the A/C control head climatronic control module (J255) and erase any displayed
malfunction if necessary. Refer to => Vehicle Diagnosis, Testing and Information System VAS 5051 in "Guided Fault Finding" function.