2025-2026 Mercedes CLA 4 Door Breakdown assistance -> Electrical fuses User Manual
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Breakdown assistance -> Electrical fuses for Your Mercedes CLA 4 Door Third Generation (2025-2026)

*
NOTE Damage to the vehicle due to incor-
rect use of the towing eye or trailer hitch
When a towing eye or trailer hitch is used to
recover a vehicle, the vehicle may be damaged
in the process.
#
Only use the towing eye or trailer hitch to
tow away or tow start the vehicle.
#
Do not use the towing eye or trailer hitch
to tow the vehicle during recovery.
Tow-starting the vehicle
Vehicles with automatic transmission
*
NOTE Damage to the automatic transmis-
sion due to tow starting
The automatic transmission may be damaged
in the process of tow starting vehicles with
automatic transmission.
#
Vehicles with automatic transmission
must not be tow started.
#
Vehicles with automatic transmissions must
not be tow-started.
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 re.
#
Always replace faulty fuses with speci-
ed new fuses containing the correct
amperage.
*
NOTE Damage due to incorrect fuses
Using incorrect fuses can result in damage to
electrical components or systems or their
functions being considerably restricted.
#
Use only fuses approved for Mercedes-
Benz with the respective specied fuse
rating.
Blown fuses must be replaced with fuses of the
same rating, which you can recognize by the color
and the label. The fuse ratings and further infor-
mation to be observed can be found in the fuse
assignment diagram.
Fuse assignment diagram: on the fuse box in the
engine compartment (/ page 311).
*
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
that no moisture can enter the fuse box.
#
When closing the fuse box, make sure
that the seal of the lid is positioned cor-
rectly on the fuse box.
310
Breakdown assistance
If the newly inserted fuse also blows, have the
cause traced and rectied at a qualied specialist
workshop.
Ensure the following before replacing a fuse:
R
The vehicle is secured against rolling away.
R
All electrical consumers are switched o.
R
The vehicle is switched o.
The fuses are located in various fuse boxes:
R
Fuse box in the engine compartment on the
le-hand side of the vehicle, when viewed in
the direction of travel (/ page 311)
R
Fuse box in the front-passenger footwell
(/ page 312)
R
Fuse box in the center of the trunk
(/ page 313)
Opening and closing the fuse box in the engine
compartment
Requirements:
R
A dry cloth and a screwdriver are available.
Observe the notes on electrical fuses
(/ page 310).
Opening
&
WARNING Risk of injury from using the
windshield wipers when the hood is open
If the windshield wipers start moving when the
hood is open, you could be trapped by the
wiper linkage.
#
Always switch o the windshield wipers
and vehicle before opening the hood.
#
Open the hood.
#
Remove any existing moisture from the fuse
box using a dry cloth.
#
Loosen screws 1.
#
Press clips 2 and li the fuse box lid up and
out.
The fuse assignment diagram is in a recess on the
side of the fuse box.
Breakdown assistance
311
Closing
#
Check whether the seal is positioned correctly
in the lid.
#
Place the lid on the fuse box.
#
Make sure that clips 2 engage.
#
Tighten screws 1.
#
Close the hood.
Opening and closing the fuse box in the front
passenger footwell
Requirements
Observe the notes on electrical fuses
(/ page 310).
Opening
#
Li carpet 1 in the direction of the arrow.
#
Loosen screws 2 and remove fuse box lid
from the top.
Closing
#
Place the lid on the fuse box.
#
Tighten screws 2.
#
Fold back the carpet.
312
Breakdown assistance
Opening and closing the fuse box in the trunk
Requirements
Observe the notes on electrical fuses
(/ page 310).
#
Open the trunk oor .
Fuse box 1 is located in the center underneath
the trunk oor.
Breakdown assistance
313

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