2018 MERCEDES-BENZ A-CLASS HATCHBACK fuse diagram

#
Vehicles with automatic transmission
must not be tow- star ted. #
Vehicles with automatic transmission must
not be tow- star ted.
Ve hicles with manual transmission #
Obser vethe no tes on towing away
( → page 450). #
If necessar y,allow the engine and exhaust
sy stem tocool down. #
Switch the ignition on. #
Enga gesecond gear. #
Release the electric parking brake. #
Tow- start theve hicle while the clutch pedal
is fully depressed. #
Slowly release the clutch pedal. #
Immediately shift toneutral if the engine
st arts. #
Pull over and stop theve hicle, paying atten‐
tion toroad and traf fic conditions. #
Remo vetheto w bar. #
Remo vetheto wing eye. #
Have theve hicle checked at a qualified spe‐
cialist workshop. Electrical fuses
Note
s on electrical fuses &
WARNING Risk of accident and inju ry
due to ov erloaded lines
If yo u manipulate or bridge a faulty fuse or if
yo ure place it with a fuse with a higher
amperage, the electric line could be overloa‐
ded.
This could result in a fire. #
Alw aysre place faulty fuses with speci‐
fi ed new fuses conta iningthe cor rect
amperage. *
NO
TEDama gedue toincor rect fuses Electrical components or sy
stems may be
damaged byincor rect fuses, or their func‐
tionality may be significant lyimpaired. #
Only use fuses that ha vebeen appr oved
by Mercedes-Benz and which ha vethe
cor rect fuse rating. Blown fuses mu
stbe replaced with fuses of the
same rating, which you can recognise bythe col‐
our and fuse rating. The fuse ratings and fu rther
information tobe obser ved are lis ted in the fuse
assignment diagram.
Fu se assignment diag ram: onthe fuse box in
th e engine compartment (→ page 455).
* NO
TEDama geor malfunctions caused
by moisture Moisture may cause dama
getothe electrical
sy stem or cause it tomalfunction. #
When the fuse box is open, make sure
th at no moisture can enter the fuse
box. #
When closing the fuse box, make sure
th at the seal of the lid is positioned cor‐
re ctly on the fuse box. 454
Breakdown assis tance

If
th e newly inser ted fuse also blo ws, ha vethe
cause traced and rectified at a qualified special‐
ist workshop, e.g. a Mercedes-Benz Service
Centre.
Ensure thefo llowing before replacing a fuse:
R The vehicle is secured against rolling away.
R All electrical consumers are switched off.
R The ignition is switched off.
The electrical fuses are located in various fuse
bo xes:
R Fuse box in the engine compartment on the
left-hand side of theve hicle, when vie wed in
th e direction of tr avel (→ page 455)
R Fuse box in the front passenger foot we ll
(→ page 456)
R Fuse box in the cent reofthe load compart‐
ment (→ page 457) Opening and closing
the fuse box in the
engine compa rtment Requ
irements:
R You need a dry clo thand a sc rewdriver. Obser
vethe no tes on electrical fuses
(→ page 454).
Opening &
WARNING Risk of inju ryfrom using the
windscreen wipers while the engine bon‐
net is open
When the engine bonn etis open, and the
windscreen wipers are set in motion, you can
be trapped bythe wiper linkage. #
Alw ays switch off the windscreen wip‐
ers and ignition before opening the
engine bonn et. #
Open the bonn et. #
Remo veany existing moisture from the fuse
box using a dry clo th. #
Loosen scr ews1. #
Press clamps 2and lift the fuse box lid up
and out.
The fuse assignment diagram is in a recess on
th e side of the fuse box. Breakdown assis
tance 455

F
Fa tigue de tection
see ATTENTION ASSIST
Fa ult message
see Displ aymessa ge
Favo urites
Ad ding .................................................2 96
Ad ding a destination ...........................3 33
Calling up ............................................ 296
Deleting ............................................... 297
Home ................................................. .333
Moving ................................................. 297
Overview ............................................. 296
Re naming ............................................ 297
Wo rk .................................................... 333
Fi ll le vel
Ad Blue ®
............................................... 254
Fi lling station sear ch
St arting automatic sear ch................... 340
Switching au tomatic sear chon/off ..... 340
Fire extinguisher ..................................... 437
Fi rs t-aid kit (soft sided) .......................... 437 Flat
towing
see Tow- bar sy stem
Flat tyre ....................................................4 38
MOExtended tyres ............................... 438
No tes .................................................. 438
TIREFIT kit ...........................................4 40
Wheel change ...................................... 472
Floor mats ................................................ 12 0
Fo il co vering ............................................ 185
Fo rw arding e-mails
see In Car Of fice
Fr ee software ............................................ 29
Fr equencies
Mobile phone ...................................... 482
Tw o-w ayradio ...................................... 482
Fr equency band
Dialling (on-board computer) .............. .257
Fr ont airbag (driver, front passenger) .....37
Fr ont wheel ar ch..................................... 13 3
Fitting/removing the co ver .................. 13 3
Fr ont wheel ar chcover
Fitting/removing ................................. 13 3Fu
el .......................................................... .487
Ad ditives .............................................4 87
Diesel .................................................. 488
E10 ...................................................... 486
Fu elreser ve ........................................ 489
Low outside temp eratures ...................4 88
Pe trol ................................................... 486
Quality (diesel) .................................... 488
Quality (p etro l) .................................... 486
Re fuelling ............................................ 16 9
Sulphur content ................................... 486
Ta nk content ....................................... 489
Fu el consum ption
On-board computer ............................ .255
Fu el consum ption indicator
Calling up ............................................ 16 2
Fu nction seat
see Door cont rol panel
Fu ses ........................................................ 454
Before replacing a fuse ........................ 454
Fu se assignment diagram .................... 454
Fu se box in the engine compartment .. 455
Fu se box in the front passenger foot‐
we ll ...................................................... 456 Index
577