A6 Quattro Sedan V8-4.2L (ART) (2000)
Auxiliary Heater Element: Service and Repair
Pre-Selector/Timer Switch, Removing and Installing
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Remove pre-selector/timer.
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Using screwdriver, press back retaining lugs -A-.
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Remove switch -B-.
NOTE:
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Switch -B- is closed when the flap is open.
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The pre-selector/timer is deactivated when the switch is open, preventing the settings from being changed using the buttons.