Mercedes-Benz M-Class 2012 Owners Manual - Manual (Page 143)

i You can start the engine without preglow
if the engine is warm.
i You can also use the touch-start function.
To do this, turn the SmartKey to position 3
(
Y
page 139) and release it immediately.
The engine then starts automatically.
Using KEYLESS-GO to start the engine
G WARNING
As long as the SmartKey is in your vehicle, the
vehicle can be started. Therefore, never leave
children unattended in the vehicle, as they
could otherwise accidentally start the engine.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Do
not leave children unattended in the vehicle,
or with access to an unlocked vehicle. A
child's unsupervised access to a vehicle could
result in an accident and/or serious personal
injury.
i The Start/Stop button can be used to
start the vehicle without inserting the
SmartKey into the ignition lock. The Start/
Stop button must be inserted into the
ignition lock and the SmartKey must be in
the vehicle.
X Depress the brake pedal and keep it
depressed.
X
To start a gasoline engine: press the
Start/Stop button (
Y
page 139) once.
The engine starts.
X
To start a diesel engine: press the Start/
Stop button (
Y
page 139) once.
Preglow is activated and the engine starts.
Pulling away
Automatic transmission
G WARNING
It is dangerous to shift the automatic
transmission out of parking position P or
neutral position N if the engine speed is
higher than idle speed. If your foot is not firmly
on the brake pedal, the vehicle could
accelerate quickly forward or in reverse. You
could lose control of the vehicle and hit
someone or something. Only shift into gear
when the engine is idling normally and when
your right foot is firmly on the brake pedal.
i It is only possible to shift the transmission
from position P to the desired position if
you depress the brake pedal. Only then is
the parking lock released. If you do not
depress the brake pedal, you can move the
DIRECT SELECT lever but the parking lock
remains engaged.
X Depress the brake pedal and keep it
depressed.
X Shift the transmission to position D or R
(
Y
page 144).
X
Release the brake pedal.
X
Carefully depress the accelerator pedal.
The electric parking brake (
Y
page 156) is
automatically released.
The red F (USA only) or ! (Canada
only) indicator lamp in the instrument
cluster goes out.
i The vehicle locks centrally once you have
pulled away. The locking knobs in the doors
drop down.
You can open the doors from the inside at
any time.
You can also deactivate the automatic
locking feature (
Y
page 235).
i Upshifts take place at higher engine
speeds after a cold start. This helps the
catalytic converter to reach its operating
temperature more quickly.
Pulling away with a trailer
To ensure that you do not roll backwards
when pulling away on an uphill slope, engage
the electric parking brake.
Driving
141
Driving
and
parking
Z