Mercedes-Benz S-CLASS 2017 Operator's Manual page 149

vehicle. Always keep the SmartKey out of
reach of children.
G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There
is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation.
G
WARNING
Flammable materials introduced through
environmental influence or by animals can
ignite if in contact with the exhaust system or
parts of the engine that heat up. There is a risk
of fire.
Carry out regular checks to make sure that
there are no flammable foreign materials in
the engine compartment or in the exhaust
system.
General notes
During a cold start, the engine runs at higher
speeds to enable the catalytic converter to
reach its operating temperature. The sound of
the engine may change during this time.
Automatic transmission
Shift the transmission to position P
X
( page 152).
Y
The transmission position display in the mul-
tifunction display shows P (
You can start the engine in transmission posi-
tion P and N.
Starting procedure with the SmartKey
To start the engine using the SmartKey instead
of the Start/Stop button, pull the Start/Stop
button out of the ignition lock.
Turn the SmartKey to position 3 in the ignition
X
lock and release it as soon as the engine is
running ( page 145).
Y
Starting procedure with the Start/Stop
button
The Start/Stop button can be used to start the
vehicle manually without inserting the SmartKey
into the ignition lock. The Start/Stop button
must be inserted in the ignition lock and the
SmartKey must be in the vehicle. This mode for
starting the engine operates independently of
the ECO start/stop automatic engine start func-
tion.
You can start the engine if a valid SmartKey is in
the vehicle. Always take the SmartKey with you
when leaving the vehicle, even if you only leave
it for a short time. Pay attention to the important
safety notes.
X
X
Starting procedure via smartphone
Observe the important safety notes on starting
the engine (
You can also start your engine via your smart-
phone from outside the vehicle. In this case, the
previously selected climate control setting is
activated. In this way you can cool or heat the
interior of the vehicle before starting the jour-
ney.
Only start the engine via your smartphone if it is
safe to start and run the engine where your vehi-
cle is parked.
Observe the legal stipulations in the area where
your vehicle is parked. Engine start via smart-
page 154).
phone may be limited to certain countries or
Y
regions.
You can execute a maximum of two consecutive
starting attempts via your smartphone. If you
insert the SmartKey into the ignition lock, you
can carry out two more starting attempts.
Once you have started the engine, you can
switch the engine off via your smartphone at any
time.
You can only start the engine via your smart-
phone if:
R
R
R
R
Depress the brake pedal and keep it
depressed.
Press the Start/Stop button once
( page 145).
Y
The engine starts.
page 146).
Y
the SmartKey is in the ignition lock
park position P is selected
the accelerator pedal is not depressed
the anti-theft alarm system is not activated
Driving
147
Z