2014 MERCEDES-BENZ C-CLASS SALOON boot

Before replacing a fuse
X Secure the vehicle against rolling away
(Y page 207).
X Switch off all electrical consumers.
X Make sure that the ignition is switched off
(Y page 181).
or
X When using the key, turn the key to position
0 in the ignition lock and remove it
(Y page 181).
All indicator lamps in the instrument cluster
must be off.
The fuses are located in various fuse boxes:
R fuse box on the driver's side of the dash-
board
R fuse box in the front-passenger footwell
R fuse box in the engine compartment on the
driver's side
R fuse box under the boot floor on the right-
hand side of the vehicle, when viewed in the
direction of travel
The fuse allocation chart is on the fuse box in
the boot (Y page 426). Dashboard fuse box
! Do not use a pointed object such as a
screwdriver to open the cover in the dash-
board. You could damage the dashboard or
the cover.
! 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. X
Open the driver's door.
X To open: pull out cover :slightly at the
bottom in the direction of arrow =.
X Fold cover :outwards in the direction of
arrow ;.
X To close: fold in cover :until it engages. Fuse box in the front-passenger foot-
well
! 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.
X Open the front-passenger door. X
Open the front-passenger door.
X To open: fold cover :out towards the rear
and remove it.
X To close: clip in cover :at the rear.
X Fold cover :forwards until it engages. Electrical fuses
425Breakdown assis tance Z

Fuse box in the engine compartment
G
WARNING
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.
Always switch off the windscreen wipers and
the ignition before opening the bonnet.
! 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. X
Open the bonnet.
X To open: press safety clips :on the cover
together.
X Remove fuse box cover ;upwards. X
Remove any existing moisture from the
fuse box using a dry cloth.
X Loosen screws =, fold up fuse box lid ?
and remove it. X
To close: check whether the seal is posi-
tioned correctly in lid ?.
X Insert lid ?into the bracket at the rear of
the fuse box.
X Fold down lid ?of the fuse box and tighten
screws =. Fuse box in the boot
! 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. X
Open the boot lid.
X Lift the boot floor upwards (Y page 375).
X To open: swing cover :upwards in the
direction of the arrow.
X To close: fold down cover :in the oppo-
site direction to the arrow.
Make sure that the cover is in the recess
provided for it.
i The fuse allocation chart is in a recess on
the side of the fuse box. You can find the
corresponding fuse rating and fuse type on the fuse allocation chart. 426
Electrical fusesBreakdown assistance

must be positioned vertically, directly under
the jacking point of the vehicle.
Observe the following when raising the
vehicle: R to raise the vehicle, only use the vehicle-
specific jack that has been tested and
approved by Mercedes-Benz. If the jack is
used incorrectly, it could tip over while the vehicle is raised.
R the jack is designed only to raise and hold
the vehicle for a short time while a wheel
is being changed. It is not suitable for per-
forming maintenance work under the vehi- cle.
R avoid changing the wheel on uphill and
downhill slopes.
R before raising the vehicle, secure it from
rolling away by applying the parking brake
and positioning wheel chocks. Do not
release the parking brake while the vehicle
is raised.
R the jack must be placed on a firm, flat and
non-slip surface. On a loose surface, a
large, flat load-bearing underlay must be
used. On a slippery surface, a non-slip
underlay must be used, e.g. rubber mats.
R do not use wooden blocks or similar
objects as a jack underlay. Otherwise, the
jack will not be able to achieve its load-
bearing capacity due to the restricted
height.
R make sure that the distance between the
underside of the tyres and the ground does not exceed 3 cm.
R never place your hands or feet under the
raised vehicle.
R do not lie under the vehicle.
R do not start the engine when the vehicle is
raised.
R do not open or close a door or the boot lid
when the vehicle is raised.
R make sure that no persons are present in
the vehicle when the vehicle is raised. Vehicles with steel wheels and wheel
trim:
the wheel trim covers the wheel bolts.
Before you can unscrew the wheel bolts, you must remove the hub cap. Steel wheel with wheel trim
X
Using both hands, carefully reach into two
wheel trim openings and remove the wheel trim.
Vehicles with light-alloy wheels and hub
caps: the wheel bolts are covered by a hub
cap. Before you can unscrew the wheel bolts, you must remove the hub cap. Two different
variants can be fitted. Light-alloy wheel with plastic hub cap
Vehicles with plastic hub cap:
X To remove: turn the centre cover of hub
cap :anti-clockwise and remove.
X To fit: before fitting, ensure that hub cap :
is in the open position. To do so, turn the
centre cover anti-clockwise. 440
Changing a wheelWheels and tyres

approved for Mercedes-Benz vehicles and the
respective wheel. X
Clean the wheel and wheel hub contact
surfaces.
X Slide the wheel to be mounted onto the
centring pin and push it on.
X Tighten the wheel bolts until they are fin-
ger-tight.
X Unscrew the centring pin.
X Tighten the last wheel bolt until it is finger-
tight.
X Vehicles with a collapsible emergency
spare wheel: inflate the collapsible emer-
gency spare wheel (Y page 462).
Only then lower the vehicle.
Lowering the vehicle G
WARNING
The wheels could work loose if the wheel nuts and bolts are not tightened to the specified
tightening torque. There is a risk of accident.
Have the tightening torque immediately
checked at a qualified specialist workshop
after a wheel is changed.
! Vehicles with a collapsible emergency
spare wheel: Inflate the collapsible emer-
gency spare wheel using the tyre inflation
compressor before lowering the vehicle.
The rim could otherwise be damaged. X
Turn the crank of the jack anti-clockwise
until the vehicle is once again standing
firmly on the ground.
X Place the jack to one side.
X Tighten the wheel bolts evenly in a cross-
wise pattern in the sequence indicated ( :
to A). The specified tightening torque is
130 Nm.
X Turn the jack back to its initial position.
X Stow the jack and the rest of the tyre-
change tool kit in the boot again.
X Vehicles with AMG equipment: insert the
cover into the outer sill.
X Check the air pressure of the newly fitted
wheel and adjust accordingly.
Observe the recommended tyre pressure
(Y page 432).
If you are driving with the collapsible emer-
gency spare wheel fitted, the tyre pressure
loss warning system or the tyre pressure
monitor cannot function reliably. Only restart
the tyre pressure loss warning system/tyre
pressure monitor when the defective wheel
has been replaced with a new wheel.
Vehicles with a tyre pressure control sys-
tem: all fitted wheels must be equipped with
functioning sensors.
If you are driving with the emergency spare
wheel fitted, the tyre pressure loss warning
system cannot function reliably. Only restart
the tyre pressure loss warning system when
the defective wheel has been replaced with a
new wheel. Changing a wheel
443Wheels and tyres Z

An emergency spare wheel may also be fitted
against the direction of rotation. Observe the
time restriction on use as well as the speed
limitation specified on the emergency spare
wheel.
Replace the tyres after six years at the latest,
regardless of wear. This also applies to the
emergency spare wheel.
If you are driving with the collapsible emer-
gency spare wheel fitted, the tyre pressure
loss warning system or the tyre pressure
monitor cannot function reliably. Only restart the tyre pressure loss warning system/tyre
pressure monitor when the defective wheel
has been replaced with a new wheel.
Vehicles with tyre pressure monitor: after
mounting an emergency spare wheel, the sys- tem may still display the tyre pressure of the
removed wheel for a few minutes. The value
displayed for the mounted emergency spare
wheel is not the same as the current tyre
pressure of the emergency spare wheel.
If you are driving with the emergency spare
wheel fitted, the tyre pressure loss warning
system cannot function reliably. Only restart
the tyre pressure loss warning system when
the defective wheel has been replaced with a
new wheel. Removing the emergency spare wheel
The emergency spare wheel is secured in the
emergency spare wheel bag in the boot.
X Open the boot.
X Detach the fastening straps.
X Unhook retaining spring hooks of fastening
straps from the retainers.
X Remove the emergency spare wheel bag
with the emergency spare wheel.
X Open the bag and remove the emergency
spare wheel.
Observe the instructions and safety notes in
the "Fitting a wheel" section (Y page 438). Inflating the collapsible emergency
spare wheel
! Inflate the collapsible emergency spare
wheel using the tyre inflation compressor
before lowering the vehicle. The wheel rim
could otherwise be damaged.
! Do not operate the tyre inflation com-
pressor for longer than eight minutes at a
time without a break. It may otherwise
overheat.
The tyre inflation compressor can be oper-
ated again once it has cooled down. X
Mount the collapsible emergency spare
wheel as described (Y page 437).
The collapsible emergency spare wheel
must be mounted before it is inflated.
X Pull connector ?and the air hose out of
the housing.
X Remove the cap from the valve on the col-
lapsible emergency spare wheel.
X Screw union nut :of the air hose onto the
valve.
X Make sure on/off switch Aof the tyre
inflation compressor is set to 0.
X Insert plug ?into the cigarette lighter
socket or into a 12 V socket in your vehicle.
X Press the Start/Stop button once.
or X Turn the key to position 1in the ignition
lock. 462
Emergency spare wheelWheels and tyres

sion surrounding the possible health risk
posed by electromagnetic fields. Approved aerial positions
:
Front roof area
; Rear roof area
= Rear wing
? Boot lid
i On vehicles with panorama sliding sun-
roof, fitting an aerial to the front or rear roof
area is not permitted.
On the rear wing, it is recommended that
you position the aerial on the side of the
vehicle closest to the centre of the road.
Use Technical Specification ISO/TS 21609
(Road Vehicles – "EMC guidelines for fitting
aftermarket radio frequency transmitting
equipment") when retrofitting RF (radio fre-
quency) transmitters. Comply with the legal
requirements for add-on parts.
If your vehicle has fittings for two-way radio
equipment, use the power supply or aerial
connections intended for use with the basic
wiring. Be sure to observe the manufacturer's additional instructions when installing.
Deviations with respect to wavebands, maxi-
mum transmission outputs or aerial positions must be approved by Mercedes-Benz. The maximum transmission output (PEAK) at
the base of the aerial must not exceed the
following values: Waveband Maximum
transmission output Short wave
3 - 54 MHz 100 W
4 m waveband
74 - 78 MHz 30 W
2 m waveband
144 - 174 MHz 50 W
Trunked radio/Tetra
380 - 460 MHz 10 W
70 cm waveband
400 - 460 MHz 35 W
GSM/UMTS/LTE 10 W
The following can be used in the vehicle with-
out restrictions:
R RF transmitters with a maximum transmis-
sion output of up to 100 mW
R mobile phones (GSM/DCS/PCS/UMTS/
LTE)
There are no restrictions when positioning the aerial on the outside of the vehicle for the fol-
lowing wavebands:
R trunked radio/Tetra
R 70 cm waveband
R GSM/UMTS/LTE Vehicle electronics
467Technical data Z

Model
:
:
Opening height C 180 BlueEFFI-
CIENCY Edition
1763 mm
C 250 BlueTEC
4MATIC
1774 mm
C 300 BlueTEC Hybrid
1768 mm
All other models
1763 mm
All models
Vehicle length
4686 mm
Vehicle width including
exterior mirrors
2020 mm
Vehicle width excluding
exterior mirrors
1810 mm
Wheelbase
2840 mm
Maximum roof load
75 kg
Maximum boot load
100 kg
Model Vehicle
height C 250 BlueTEC 4MATIC
1452 mm
C 300 BlueTEC Hybrid
1447 mm
All other models
1442 mm
Trailer tow hitch
Mounting dimensions
! If you have a trailer tow hitch retrofitted,
changes to the engine cooling system may
be necessary, depending on the vehicle
type.
If you have a trailer tow hitch retrofitted,
observe the anchorage points on the chas- sis. The retrofitting of a trailer tow hitch is only
permissible if a towing weight is specified in
your vehicle documents. If this is not the case,
then the vehicle is not approved for the tow-
ing of a trailer.
For more information, please contact a quali-
fied specialist workshop.
Towing a trailer is not possible with all mod-
els. For further information, see (Y page 284). :
Anchorage points for the trailer tow hitch
; Overhang dimension
= Rear axle centre line
For trailer tow hitches fitted at the factory, the
overhang dimension including the protective
covering is 1,158 mm. Trailer tow hitch
477Technical data Z