Buried deep into the extensive bulletin sent to dealerships, BMW introduced an important change to the 2011 BMW M3 models: automatic/Start Stop.
Seen in other BMW vehicles, the Start-Stop technology now comes standard in the M3. Start-Stop is a feature developed from BMW’s EfficientDynamics strategy that will shut down the engine under certain conditions when the vehicle comes to a complete stop.
The benefit of this technology is reduced fuel consumption and the function can be switched on/off via a button located next to the Start/Stop button.
The way it works is that the system automatically switches off the engine when the car comes to a standstill. As soon as the driver puts in the clutch or depresses the gas pedal, the engine fires up automatically.