Mercedes-Benz M-Class 2015 Owners Manual - Manual (Page 161)

As soon as the ignition is switched on, all the
indicator lamps in the instrument cluster light
up. If an indicator lamp does not go out after
starting the engine or lights up while driving,
see (
Y
page 320).
If Start/Stop button : has not yet been
pressed, this corresponds to the SmartKey
being removed from the ignition.
X To switch on the power supply: press
Start/Stop button : once.
The power supply is switched on. You can
now activate the windshield wipers, for
example.
i The power supply is switched off again if:
R
the driver's door is opened and
R you press Start/Stop button : twice
when in this position.
X
To switch on the ignition: press Start/
Stop button : twice.
The ignition is switched on.
i The ignition is switched off when:
R the driver's door is opened and
R you press Start/Stop button : once
when in this position.
= Start/Stop button USA
? Start/Stop button Canada
Removing the Start/Stop button
You can remove the Start/Stop button from
the ignition lock and start the vehicle as nor-
mal using the SmartKey.
It is only possible to switch between KEY-
LESS-GO mode and SmartKey operation
when the transmission is in position P.
X Remove Start/Stop button : from ignition
lock ;.
i You do not have to remove the Start/Stop
button from the ignition lock when you
leave the vehicle. You should, however,
always take the SmartKey with you when
leaving the vehicle. As long as the Smart-
Key is in the vehicle:
R the vehicle can be started using the
Start/Stop button
R electrically powered equipment can be
operated.
Starting the engine
Important safety notes
G WARNING
If children are left unsupervised in the vehicle,
they could:
R open the doors, thus endangering other
people or road users.
R get out and disrupt traffic.
R operate the vehicle's equipment.
Additionally, children could set the vehicle in
motion if, for example, they:
R release the parking brake.
R shifting the automatic transmission out of
park position P
R Start the engine.
There is a risk of an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
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.
Driving
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