Mercedes-Benz S-CLASS 2017 Operator's Manual page 343

The fuses in your vehicle serve to close down
faulty circuits. If a fuse blows, all the compo-
nents on the circuit and their functions stop
operating.
If a newly inserted fuse also blows, have the
cause traced and rectified at a qualified special-
ist workshop, e.g. an authorized Mercedes-Benz
Center.
!
Only use fuses that have been approved for
Mercedes-Benz vehicles and which have the
correct fuse rating for the system concerned.
Otherwise, components or systems could be
damaged.
!
Make sure that no moisture can enter the
fuse box when the cover is open.
!
When closing the cover, make sure that it is
lying correctly on the fuse box. Moisture seep-
ing in or dirt could otherwise impair the oper-
ation of the fuses.
Before changing a fuse
Observe the important safety notes
( page 340)
Y
Switch off the engine.
X
Switch off all electrical consumers.
X
Make sure that the ignition is switched off
X
( page 145).
Y
or
When using the SmartKey, turn the SmartKey
X
to position 0 in the ignition lock and remove it
( page 145).
Y
Secure the vehicle against rolling away
X
( page 162).
Y
All indicator lamps in the instrument cluster
must be off.
The fuses are located in various fuse boxes:
Fuse box on the driver's side of the dashboard
R
Fuse box in the front-passenger footwell
R
Fuse box in the engine compartment on the
R
left-hand side of the vehicle, when viewed in
the direction of travel
Fuse box in the trunk
R
Dashboard fuse box
The fuse box is under a cover on the side of the
dashboard. You can obtain further information
from an authorized Mercedes-Benz Center.
Fuse box in the front-passenger foot-
well
Open the front-passenger door.
X
Fold cover : down and remove it.
X
Fuse box in the engine compartment
G
WARNING
When the hood is open and the windshield
wipers are set in motion, you can be injured by
the wiper linkage. There is a risk of injury.
Always switch off the windshield wipers and
the ignition before opening the hood.
Open the hood ( page 312).
X
Y
To open: release retaining clamps : and
X
remove cover ;.
Fuses
341
Z