Start-stop system
Function description
The start-stop system automatically switches the engine off shortly before and when the vehicle comes to a halt and
when stationary.
For vehicles with a manual transmission, the engine will only switch off if no gear is engaged during rolling or when
the vehicle is stationary and the clutch pedal is not pressed.
The engine always restarts automatically when required for the vehicle and the identified situation.
The function is automatically activated every time the ignition is switched on.
Indicator lights
Information about the current status is shown in the instrument cluster display.
When indicator light comes on, the start-stop system is available and the automatic engine stop is active.
If the indicator light is lit, the start-stop system is not available or the start-stop system has automatically started
the engine.
Conditions for Automatically Restarting the Engine
—Vehicles with an automatic transmission: If you take your foot off the brake pedal or you press the accelerator
pedal.
—Vehicles with manual transmission: if the clutch is operated.
—If the vehicle interior heats up or cools down significantly.
—If the vehicle starts to move.
—If the electrical voltage in the 12-volt vehicle battery falls.
—If the steering wheel is moved.
Conditions that Can Prevent Automatic Engine Shutdown
—The driver is not wearing their safety belt.
—The driver door is opened.
—The engine hood is open.
—A minimum engine temperature has not been reached.
—Vehicles with Climatronic: The temperature in the vehicle interior is not within the preset temperature values or
the humidity is too high.
—The air conditioner's defrost function is switched on.
—The charge level of the 12 V vehicle battery is insufficient.
—The temperature of the 12 V vehicle battery is too low or too high.
—The vehicle is on a large uphill or downhill gradient.
— The steering wheel is significantly turned.
—The windshield defroster is switched on.
—The reverse gear is engaged.
—Park Assist is activated.
If the conditions for automatic engine switch-off are only achieved during a stationary phase, then the engine may
also switch off at this point, e.g. if the defrost function is switched off.
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