Sunlight Photo Sensor G107, removing and installing

WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 2009 Audi S4, 2009 Audi A4, 2008 Audi S4, 2008 Audi RS 4, and 2008 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

As of VIN 400000 in Model Year 2005 (for Saloon and Avant; gradual introduction for the Cabrio in week 46/04 without prior specification of any particular VIN ), vehicles are to be installed with a modified Sunlight Photo Sensor G107 and a modified operating and display module, Climatronic Control Module J255. Vehicles with operating and display modules, Climatronic Control Module J255 with part number index up to "AH" are only to be installed with Sunlight Photo Sensor G107 with part number 8E0 907 539 (vehicles up to VIN 399999 in Model Year 2005 for Saloon and Avant; gradual introduction for the Cabrio in week 46/04 without prior specification of any particular VIN ). Vehicles with operating and display modules, Climatronic Control Module J255 with part number index "AJ" onwards are only to be installed with Sunlight Photo Sensor G107 with part number 8P0 907 539 (vehicles as of VIN 400000 in Model Year 2005 for Saloon and Avant; gradual introduction for the Cabrio in week 46/04 without prior specification of any particular VIN) .
In the event of incorrect assignment between the Sunlight Photo Sensor G107 and the operating and display module, Climatronic Control Module J255, the operating and display module, Climatronic Control Module J255 cannot evaluate the signal from the Sunlight Photo Sensor G107 and there will be problems with air conditioner control.

Removal and installation on vehicles up to VIN 399999 in Model Year 2005 (Saloon and Avant; gradual introduction for the Cabrio in week 46/04 without prior specification of any particular VIN)

Fig 1: Prying Cover Out Of Windshield Defroster Vent & Removing Bolt

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Carefully pry cover - A - in direction of arrow out of windshield defroster vent.
Remove bolt - B -.
Take Sunlight Photo Sensor G107 out of windshield defroster vent.
Secure connector - C - to stop it sliding into instrument panel and disconnect it from Sunlight Photo Sensor G107.

Removal and installation on vehicles as of VIN 400000 in Model Year 2005 (Saloon and Avant; gradual introduction for the Cabrio in week 46/04 without prior specification of any particular VIN)

Fig 2: Prying Cover Out Of Windshield Defroster Vent & Prying Sunlight Photo Sensor G107 Out Of Windshield Defroster Vent

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Carefully pry cover - A - in direction of arrow out of windshield defroster vent.
Pry Sunlight Photo Sensor G107 - B - out of windshield defroster vent.

NOTE:

The Sunlight Photo Sensor G107 - B - is clipped into the defroster vent.

Secure connector - C - to stop it sliding into instrument panel and disconnect it from Sunlight Photo Sensor G107 - B -.