A4 Quattro Wagon L4-2.0L Turbo (CAEB) (2009)
Power Window Switch: Testing and Inspection
Power Windows, Check Positioning
Whenever the battery is disconnected the power windows will forget their current position and the automatic one-touch/one-touch down feature is
cancelled.
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Activate the one-touch up/one-touch down feature as follows:
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Switch ignition on.
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Raise the windows all the way up using the power window regulators.
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Then operate all window switches again for at least 1 second in the "close" position to re-activate one-touch up/one-touch down.
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Press switch down. The window must lower all the way down.