667 Practical hints
Fuses
Fuses
The electrical fuses in your vehicle serve to
switch off malfunctioning power circuits.
If a fuse is blown, the component(s) and
systems secured by that fuse will stop op-
erating.
If a newly inserted fuse blows again, have
the cause determined and rectified by an
authorized Mercedes-Benz Center.
The following aids are available to help you
replace fuses. They are located in the trunk
with the vehicle tool kit (
page 632):
Fuse chart
The fuse chart explains the fuse alloca-
tion and fuse amperages.
Spare fuses
Special fuse extractor
The electrical fuses are located in different
fuse boxes:
in the dashboard on the passenger side
(
page 669)
in the dashboard on the driver’s side
(
page 669)
behind the rear center armrest
(
page 669)
on the driver’s side of the engine com-
partment (
page 668)
on the passenger side of the engine
compartment (
page 668)
Before replacing fuses:
Engage the electronic parking brake
(
page 384).
Make sure the automatic transmission
is set to P (
page 389).
The gear position indicator in the ta-
chometer display should be on P.
Turn off all electrical consumers.
Turn off the engine (page 387).
Switch off the vehicle’s internal electri-
cal functions (
page 658).
Warning!G
Only use fuses approved by Mercedes-Benz
with the specified amperage for the system
in question and do not attempt to repair or
bridge a blown fuse. Using other than ap-
proved fuses or using repaired or bridged
fuses may cause an overload leading to a
fire, and/or cause damage to electrical
components and/or systems. Have the
cause determined and remedied by an
authorized Mercedes-Benz Center.
!Switch off the vehicle’s internal electrical
functions (
page 658) when you are working on
the fuses.
iA blown fuse must be replaced by an appro-
priate spare fuse (recognizable by its color or the
fuse rating given on the fuse) of the amperage
recommended in the fuse chart.
Any Mercedes-Benz Center will be glad to advise
you on this subject.
668 Practical hints
Fuses
Fuse boxes in engine compartment
Open the hood (page 512).
Box on the driver’s side
Example illustration from CL 550
14 screws
2Cover
3JumperOpening
Take the crank from the Operator’s
Manual pouch.
Loosen screws1 with crank.
Remove jumper3.
Remove cover2.
Closing
Attach cover2.
Attach jumper3.
Tighten screws1 with crank.Box on the front passenger side
Example illustration from CL 550
1Retaining lugs
2Cover
Opening
Press retaining lugs1.
Remove cover2.
!The cover must fit properly, as otherwise
moisture or dirt may impair the functionality of
the fuses.
