Useful information
i
This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variations are pos-
sible. Note that your vehicle may not be
equipped with all of the functions descri-
bed. This is also the case for systems and
functions relevant to safety.
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Read the information on qualified special-
ist workshops: (Y page 26).
Engine compartment
Bonnet
Important safety notes
G
WARNING
An unlocked bonnet may open while driving
and block your view. There is a risk of an acci-
dent.
Never unlock the bonnet while driving.
G
WARNING
When being opened and closed, the bonnet
may suddenly fall into the closed position.
There is a risk of injury to persons in the range
of movement of the bonnet.
Open and close the bonnet only when nobody
is in the range of movement.
G
WARNING
If you open the bonnet while the engine is
overheating or while there is a fire in the
engine compartment, you could come into
contact with hot gases or other leaking
service products. There is a danger of injury.
Allow an overheating engine to cool down
before opening the bonnet. If there is a fire in
the engine compartment, leave the bonnet
closed and notify the fire brigade.
G
WARNING
There are parts in the engine compartment
that move. Certain components may continue
to run even if the ignition is switched off or
may suddenly start again, e.g. the radiator
fan. There is a danger of injury.
If you need to access the engine compart-
ment:
R
switch off the ignition
R
never enter the danger area of moving com-
ponents, e.g. the rotation area of the fan
R
keep items of clothing away from moving
parts
G
WARNING
The ignition system and the fuel injection sys-
tem operate with a high voltage. If you touch
the live components, you could receive an
electric shock. There is a danger of injury.
Never touch components of the ignition sys-
tem or the fuel injection system when the
ignition is switched on.
G
WARNING
Hybrid vehicles: ensure that you read the
"HYBRID" supplement. You could otherwise
fail to recognise dangers.
Active bonnet (pedestrian protection)
Operating principle
!
An active bonnet that had been triggered
must be repaired at a qualified specialist
workshop. The active bonnet function will
then be available again. The additional
pedestrian protection provided by the
active bonnet will then be restored.
!
Do not try to press down the raised bon-
net at the back. Otherwise, the bonnet
could be damaged.
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The active bonnet is only available in cer-
tain countries. It is available for all models,
except for AMG vehicles.
364
Engine compartment
Maintenance and care
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