Audi A8   Controls   Driving  Start/stop system
Instrument cluster: Engine switched off (stop phase)
Fig. 1 Instrument cluster: Engine switched off (stop phase)
Stop the vehicle and keep your foot on the brake. The engine will switch off. At the same time, an indicator lamp will appear in the info line of the instrument cluster display.
The engine will start again automatically when you take your foot off the brake. The indicator lamp will go out.
Further information
The engine is switched off when the selector lever is in position P, D, N or S or in manual mode. If the selector lever is in position P, the engine will remain off even if you take your foot off the brake. The engine will not start again until you select another gear and take your foot off the brake.
The engine will start again if you move the selector lever to R during a stop phase.
If you do not want the engine to start, move the selector lever quickly from D through R to P.
You can control whether or not the engine is switched off by varying the amount of pressure on the brake pedal. For instance, if you brake gently in stop-and-go traffic or before turning off at a junction, the engine will remain on while the vehicle is at a standstill. As soon as you press the brake pedal harder, the engine will be switched off.
Note
  • Keep your foot on the brake pedal during a stop phase to prevent the vehicle from moving.
  • If you press the START ENGINE STOP button during a stop phase, the ignition will be switched off.

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