Driv ing and pa rki ng, Driving – Mercedes-Benz M-Class 2015 Owners Manual User Manual
Page 160
X
Check the starter battery and recharge if
necessary (
Y
page 389).
or
X
Jump-start the vehicle (
Y
page 391).
i
The SmartKey can be turned in the igni-
tion lock even if it is not the correct Smart-
Key for the vehicle. The ignition is not
switched on. The engine cannot be started.
KEYLESS-GO
General notes
Vehicles with KEYLESS-GO are equipped with
a SmartKey featuring an integrated KEYLESS-
GO function and a detachable Start/Stop but-
ton.
The Start/Stop button must be inserted in the
ignition lock and the SmartKey must be in the
vehicle.
When you insert the Start/Stop button into
the ignition lock, the system needs approx-
imately two seconds recognition time. You
can then use the Start/Stop button.
Pressing the Start/Stop button several times
in succession corresponds to the different
key positions in the ignition lock. This is only
the case if you are not depressing the brake
pedal.
If you depress the brake pedal and press the
Start/Stop button, the engine starts immedi-
ately.
A check which periodically establishes a radio
connection between the vehicle and the
SmartKey determines whether a valid Smart-
Key is in the vehicle. This occurs, for example,
when starting the engine.
To start the vehicle without actively using the
SmartKey:
R
the Start/Stop button must be inserted in
the ignition lock.
R
the SmartKey must be in the vehicle.
R
the vehicle must not be locked with the
SmartKey or KEYLESS-GO (
Y
page 81).
Do not keep the SmartKey:
R
with electronic devices, e.g. a mobile
phone or another SmartKey
R
with metallic objects, e.g. coins or metal
foil
R
inside metallic objects, e.g. a metal case
This can impair the functionality of the KEY-
LESS-GO key.
Do not keep the KEYLESS-GO key in the tem-
perature-controlled cup holder (
Y
page 346).
Otherwise, the KEYLESS-GO key will not be
recognized.
If you lock the vehicle with the SmartKey's
remote control or with KEYLESS-GO, after a
short time:
R
you will not be able to switch on the ignition
with the Start/Stop button.
R
you will not be able to start the engine with
the Start/Stop button until the vehicle is
unlocked again.
If you lock the vehicle centrally using the but-
ton on the front door (
Y
page 87), you can
continue to start the engine with the Start/
Stop button.
i
The engine can be turned off while the
vehicle is in motion by pressing and holding
the Start/Stop button for approximately
three seconds. This function operates inde-
pendently of the ECO start/stop automatic
engine switch-off function.
Key positions with KEYLESS-GO
:
Start/Stop button
;
Ignition lock
158
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