S4 V8-4.2L (BHF) (2004)
Headlamp Switch: Service and Repair
Ambient Illumination Deactivation Switch E491, Removing and Installing
Ambient Illumination Deactivation Switch E491, Removing And Installing
Where equipped, the Ambient Illumination Deactivation Switch E491 controls the "coming home " and "leaving home" lighting function.
Additional information Owners Manual
Removing
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Remove light switch.
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Reach through opening for light switch and press the switch unit out of the switch housing in direction of - arrow -.
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Disconnect electrical connection.
Installing
Install in reverse order of removal, noting the following:
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Install light switch.