2012-2017 Mercedes A Class 4 Door Breakdown assistance -> Electrical fuses User Manual
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Breakdown assistance -> Electrical fuses for Your Mercedes A Class 4 Door Third Generation (2012-2017)

Electrical fuses  
355  
X
X
X
X
Release the clutch pedal slowly; do not  
depress the accelerator pedal while doing  
so.  
When the engine has been started, imme-  
diately depress the clutch pedal fully and  
shift to neutral.  
Pull over at a suitable place and stop the  
vehicle safely, paying attention to road and  
traffic conditions.  
Use the electric parking brake to secure the  
vehicle and prevent it from rolling away.  
Before replacing a fuse  
X
Safeguard the vehicle against rolling away  
(Y page 184).  
X
X
Switch off all electrical consumers.  
Vehicles without KEYLESS-GO: remove  
the key from the ignition lock.  
X Vehicles with KEYLESS-GO start-func-  
tion or KEYLESS-GO: open the driver's  
door.  
The on-board electronics now have status  
0. This is the same as the key having been  
removed.  
X
X
X
Remove the rigid towing bar or towing rope.  
Remove the towing eye (Y page 352).  
Switch off the hazard warning lamps.  
The fuses are located in various fuse boxes:  
R
fuse box in the engine compartment on the  
left-hand side of the vehicle, when viewed  
in the direction of travel  
fuse box in the front-passenger footwell  
Electrical fuses  
R
Important safety notes  
The fuse allocation chart is on the fuse box in  
the front-passenger footwell (Y page 356).  
WARNING  
G
If you manipulate, bridge or replace a faulty  
fuse with a fuse of a higher amperage, the  
electric cables could be overloaded. This may  
result in a fire. There is a risk of an accident  
and injury.  
Fuse box in the engine compartment  
WARNING  
G
When the bonnet is open, and the windscreen  
wipers are set in motion, you can be injured by  
the wiper linkage. There is a risk of injury.  
Alwaysreplace faulty fuses with specifiednew  
fuses of the correct amperage.  
Always switch off the windscreen wipers and  
the ignition before opening the bonnet.  
Blown fuses must be replaced with fuses of  
the same rating, which you can recognise by  
the colour and fuse rating. The fuse ratings  
are listed in the fuse allocation chart.  
If the newly inserted fuse also blows, have the  
cause traced and rectified at a qualified spe-  
cialist workshop, e.g. a Mercedes-Benz Ser-  
vice Centre.  
! 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  
seeping in or dirt could otherwise impair  
the operation of the fuses.  
! Only use fuses that have been approved  
for Mercedes-Benz vehicles and which  
have the correct fuse rating for the system  
concerned. Only use fuses marked with an  
"S". Components or systems could other-  
wise be damaged.  
The fuses in your vehicle disconnect faulty  
circuits. Ifa fuseblows, allthecomponents on  
the circuit and their functions will fail.  
Z
Electrical fuses  
356  
seeping in or dirt could otherwise impair  
the operation of the fuses.  
X
X
Open the bonnet.  
Remove any existing moisture from the  
fuse box using a dry cloth.  
X
X
X
To open: open the front-passenger door.  
Remove the floormat.  
Fold out perforated floor covering : in the  
direction of the arrow.  
X
X
To open: open clamps ;.  
Fold cover : up in the direction of the  
arrow and remove it.  
X
X
To close: check whether the seal is lying  
correctly in cover :.  
Insert cover : at the back into openings  
= on the fuse box.  
Fold down cover :.  
Hook clamps ; into the fuse box and  
X
X
X
To release cover =, press retaining  
clamp ;.  
Fold out cover = in the direction of the  
arrow to the catch.  
Remove cover = forwards.  
Fuse allocation chart ? is located on the  
lower right-hand side of cover =.  
To close: insert cover = on the left-hand  
side of the fuse box into the retainer.  
Cover = engages in the retainers.  
X
X
close.  
Close the bonnet.  
X
X
X
Fuse box in the front-passenger foot-  
well  
Fold down cover = until clamps ; lock  
audibly.  
X
X
Fold back perforated floor covering :.  
Fit the floormats.  
! 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  

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