Audi A4   Controls   Audi adaptive cruise control and braking guard  General notes
The adaptive cruise control is available from the second to the sixth gear (when driven in normal engine speed range).
When the adaptive cruise control is switched on, you must press the clutch pedal in the normal way in order to change gear. The adaptive cruise control will remain activated when you change gear or press the clutch pedal.
You do not need to press the accelerator after selecting a gear. The adaptive cruise control system accelerates the vehicle automatically as appropriate.
The adaptive cruise control may be switched off automatically if you keep the clutch pedal depressed for too long or if you change gears incorrectly or use the clutch pedal improperly.
Note
You cannot switch on the adaptive cruise control during a gear change.

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