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Operation Fig. 121 Display Vehicles with manual transmission The engine is automatically switched off as soon as the vehicle comes to a halt, the shift lever is moved into neutral and the clutch pedal is released. Vehicles with automatic transmission The engine is automatically switched off as soon as the vehicle comes to a standstill and the brake pedal is operated. Requirements for the system to function correctly The following conditions must be met for the system to function correctly. The driver's door is closed. System status The system status is shown in the display when the vehicle comes to a halt . The engine is automatically switched off; when the vehicle moves off the ignition process will be automatically initiated. The engine does not shut down when the vehicle stops, if e.g. the following applies. ▶ The engine temperature for the proper function of the system has not yet been reached. ▶ The charge state of the vehicle battery is too low. ▶ The current consumption is too high. ▶ High air conditioning or heating output (high fan speed, big difference be- tween the desired and actual interior temperature). If the engine has shut down automatically but the system detects that the en- gine is required to run (e.g. if the brake pedal is pressed repeatedly) then the system automatically starts up the engine. Note ■ If the driver's seat belt is removed for more than 30 seconds or the driver's door is opened after the engine has switched off automatically, the engine will have to be restarted manually. ■ No automatic engine shut-down takes place when a vehicle with automatic transmission is moving at low speed (e.g. during a traffic jam) and remains sta- tionary after pressing the brake pedal lightly. Automatic engine shutdown takes place if you press the brake pedal down with more force. ■ For vehicles with automatic transmission there is no automatic engine shut- down when the system detects a manoeuvring action due to a large steering angle. Manually deactivating/activating the system Fig. 122 Button for the START-STOP sys- tem › To deactivate/activate the system, press the button When the system is deactivated, the symbol in the button lights up . If the system is turned off, it will be automatically reactivated after turning the ignition off and on. Note If the system is deactivated when the engine is turned off automatically, then the automatic start process takes place. 90 Driving |