Mercedes-Benz B-Class hatchback 2022 Owner's Manual page 350

& WARNING Risk of injury due to moving
parts
Components in the engine compartment may
continue to run or start unexpectedly even
when the drive system is switched off.
Observe the following if you must open the
bonnet:
Switch off the vehicle.
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Never touch the danger zones surround-
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ing moving components, e.g. the rotation
area of the fan.
Remove jewellery and watches.
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Keep items of clothing and hair away
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from moving parts.
& WARNING Risk of injury from touching
components under voltage
The ignition system and the fuel injection sys-
tem operate at high voltage. You could receive
an electric shock.
Never touch ignition system or fuel injec-
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tion system components when the vehi-
cle is switched on.
The live components include the following, for
example:
Ignition coils
R
Fuel injectors
R
Electric lines to the ignition coils and the fuel
R
injectors
& WARNING Risk of burns from hot compo-
nent parts in the engine compartment
Certain component parts in the engine com-
partment can be very hot, e.g. the engine, the
cooler and parts of the exhaust system.
Allow the engine to cool down and only
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touch component parts described in the
following.
Maintenance and care 347
& WARNING Risk of injury from using the
windscreen wipers when the bonnet is
open
If the windscreen wipers start moving when
the bonnet is open, you could be trapped by
the wiper linkage.
Always switch off the windscreen wipers
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and the vehicle first if you need to open
the bonnet.