Mercedes-Benz M-Class 2012 Owners Manual - Manual (Page 348)

the color and value. The fuse ratings are listed
in the fuse allocation chart.
If a newly inserted fuse also blows, have the
cause traced and rectified at a qualified
specialist 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. For the fuse boxes in the engine
compartment and under the rear bench
seat, only use fuses with the suffix "S".
Otherwise, components or systems could
be damaged.
Before changing a fuse
X Park the vehicle and apply the electric
parking brake.
X
Switch off all electrical consumers.
X
Remove the SmartKey from the ignition
lock.
The fuses are located in various fuse boxes:
R fuse box on the front-passenger side of the
dashboard
R fuse box in the engine compartment on the
right-hand side of the vehicle, when viewed
in the direction of travel
R fuse box under the rear bench seat
The fuse allocation chart is located in the fuse
box under the rear bench seat (
Y
page 347).
Dashboard fuse box
! Do not use a pointed object such as a
screwdriver to open the cover in the
dashboard. You could damage the
dashboard or the cover.
X To open: pull cover : outwards in the
direction of the arrow and remove it.
X To close: clip in cover : at the front of the
dashboard.
X
Fold cover : inwards until it engages.
Fuse box in the engine compartment
X Open the hood (
Y
page 312).
X Remove any existing moisture from the
fuse box using a dry cloth.
X
To open: open clamps ;.
X
Fold cover : upwards in the direction of
the arrow and remove it.
! Make sure that no moisture can enter the
fuse box when the cover is open.
X To close: check whether the seal is lying
correctly in cover :.
X
Insert cover : into the retainers at the side
of the fuse box.
X Fold down cover : and close clamps ;.
346
Fuses
Breakdown
assistance