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200 Driving mode
on, for example. The ignition run-on function is
limited to a duration of a maximum of
30 minutes. The ignition lock then switches to
position g and the ignition switches off.
Engine run-on
& WARNING Risk of accident due to unin‐
tentional roll-starting of the vehicle
If you use the engine run-on function, the
vehicle can roll-start unintentionally when
crawler mode is switched on and the pulling-
away gear is engaged.
When the engine run-on function is used:
Shift the transmission to neutral posi‐
#
tion.
Apply the parking brake.
#
The engine run-on function is only available in
combination with an electronic ignition lock.
The engine run-on function allows you to leave
the engine running while the vehicle is stationary
and take key
1
out of the vehicle with you. This
means, for example, that you can lock the cab
and operate power take-off or the level control
system in work mode.
Starting the engine
Requirements:
the key is in the vehicle.
R
the key battery is charged.
R
& DANGER Risk death caused by exhaust
gases
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases is hazardous to health
and leads to poisoning.
Never leave the engine or, if present,
#
the auxiliary heating running in an
enclosed space without sufficient venti‐
lation.
* NOTE Engine damage due to oil pressure
that is too low
If the oil pressure in the engine is too low, the
on-board computer displays the 5 symbol
in the red event window. A warning tone also
sounds.
The engine operating safety is at risk.
Switch off the engine immediately.
#
%
Observe the notes and instructions regarding
this event message in the "Red event mes‐
sage" section in the chapter "On-board com‐
puter and displays".
Press and hold the brake or apply the parking
#
brake.
Switch on the ignition.
#
The display check of the instrument cluster
starts. The display check in the instrument
cluster shows which equipment is available
and if there are malfunctions.
The immobiliser is deactivated and the engine
can be started. If an invalid key is used, the
on-board computer displays an event window.
In this case, use a valid replacement key.
Vehicles with Mercedes PowerShift: the on-
board computer shows the transmission set‐
ting and the automatic drive program (e.g. A,
A economy, A power, A offroad, A fleet or A
fire-sv).
Check the engine oil level.
#
Shift the transmission to neutral position.
#
Deactivate the power take-off (
#
Switch off the cargo liftgate, see separate
#
Operating Instructions.
Vehicles with engine preheating: preheat the
#
engine at outside temperatures below -20 °C
before starting the engine (
Press and hold the start/stop button or turn
#
the key to the start position in the ignition
lock. Do not depress the accelerator pedal
while doing so.
Release the start/stop button or the key
#
when the engine starts normally. The idle
speed will be regulated automatically.
%
The idle speed is increased at very low out‐
side temperatures or during diesel particu‐
late filter regeneration.
%
The starting procedure is interrupted auto‐
matically depending on the equipment:
after approx. 60 seconds on vehicles with
R
OM 936 engine.
after approx. 40 seconds on vehicles with
R
OM 470, OM 471 and OM 473 engines.
On vehicles with OM 460 engine, the starting
procedure has to be interrupted after 20 sec‐
onds and repeated after around a minute.
page 307).
/
page 110).
/
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