Radio clock
WARNING: This page does not describe the selected car, but rather 14 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.
If an acceptable radio clock signal is received, clock automatically switches to "radio-controlled quartz clock" operating mode. The radio clock reception symbol (radio tower radiating waves) appears in display. If the clock does not receive a valid signal, it automatically switches to "quartz clock" mode after 3 days and radio clock reception symbol goes out.