Always deactivate the start/stop system manually when driving through water.
Activating the start/stop system manually:
1. Tap the Vehicle function button in the menu selection.
2. Tap the Status function button.
3. Tap the Start/stop function button to activate the start/stop system.
If the start/stop system has switched the engine off, the engine will start again as soon as the system is deactivated with the
function button.
In some cases, it may be necessary to restart the engine manually, e.g. if the bonnet is opened. Observe the message on the
instrument cluster display →
.
Start-Stop mode with automatic Adaptive Cruise Control (ACC)
The engine will be switched off after the Adaptive Cruise Control (ACC) has brought the vehicle to a standstill with an active braking
intervention.
In the following instances, the engine will restart when ACC is active:
—If the accelerator is pressed.
—When ACC has resumed speed and distance control.
The start/stop system is automatically activated when the Eco driving profile is selected in vehicles featuring driving profile
selection.
WARNING
The engine can start suddenly if the start/stop system is activated when working in the bonnet space. This can lead to accidents and
serious injuries.
● Always deactivate the start/stop system when working in the bonnet space.
WARNING
When the ignition is switched off, certain vehicle systems do not function or function only to a restricted extent (e.g. brake servo or
power steering). As a result, more force has to be used for steering and more pressure has to be applied to the brake pedal to stop the
vehicle. If the vehicle is in motion, this can cause loss of control over the vehicle, accidents and serious or fatal injuries.
● Never switch off the ignition while the vehicle is in motion.
WARNING
The airbags and belt tensioners do not function when the ignition is switched off. This can result in accidents and serious or fatal
injuries.
● Never switch off the ignition while the vehicle is in motion.
WARNING
When the ignition is switched off, the steering lock may activate and you will no longer be able to steer the vehicle. If the vehicle is in
motion, this can cause loss of control over the vehicle, accidents and serious or fatal injuries.
● Never switch off the ignition while the vehicle is in motion.
NOTICE
If the start/stop system is used in very high outside temperatures over a long period, the 12-volt vehicle battery can be damaged.
● Avoid using the start/stop system at very high outside temperatures.
Engine no longer starts automatically
1. Start the engine manually (→ Starting the engine).
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