Electrical Fuses - Mercedes-Benz S-Class Saloon W223 2021 Owner's Manual

Electrical fuses

Notes on electrical fuses
& WARNING Risk of accident and injury due
to overloaded lines
If you manipulate or bridge a faulty fuse or if
you replace it with a fuse with a higher amper-
age, the electric line could be overloaded.
This could result in a fire.
Always replace faulty fuses with speci-
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fied new fuses containing the correct
amperage.
* NOTE Damage due to incorrect fuses
Electrical components or systems may be
damaged by incorrect fuses, or their function-
ality may be significantly impaired.
Only use fuses that have been approved
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by Mercedes-Benz and which have the
correct fuse rating.
Blown fuses must be replaced with fuses of the
same rating, which you can recognise by the col-
our and fuse rating. The fuse ratings and further
information to be observed can be found in the
fuse assignment diagram.
Fuse assignment diagram: in the vehicle docu-
ment wallet.
* NOTE Damage or malfunctions caused by
moisture
Moisture may cause damage to the electrical
system or cause it to malfunction.
When the fuse box is open, make sure
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that no moisture can enter the fuse box.
When closing the fuse box, make sure
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that the seal of the lid is positioned cor-
rectly on the fuse box.
If the newly inserted fuse also blows, have the
cause traced and rectified at a qualified specialist
workshop.
Ensure the following before replacing a fuse:
The vehicle is secured against rolling away.
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All electrical consumers are switched off.
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The ignition is switched off.
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P223 0288 02
Breakdown assistance 391
The electrical fuses are located in the following
fuse boxes:
Fuse box in the engine compartment on the
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driver's side ( page 391)
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Fuse box on the driver's side of the cockpit
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( page 393)
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Fuse box in the front passenger footwell
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( page 394)
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Fuse box in the boot on the right-hand side of
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the vehicle, when viewed in the direction of
travel ( page 394)
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Opening and closing the fuse box in the engine
compartment
Requirements:
Observe the notes on electrical fuses
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( page 391).
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Have the following tools readily available:
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a dry cloth
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a screwdriver with an appropriate head
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