towing MERCEDES-BENZ C-CLASS COUPE 2015 Owner's Manual

X
Position the trailer horizontally behind the
vehicle.
X Couple up the trailer.
X Establish the electrical connection between
the vehicle and the trailer.
X Check that the trailer lighting system is work-
ing.
X Push the combination switch upwards/down-
wards
X Check whether the corresponding turn signal
on the trailer is flashing.
Ac onnected trailer is only detected when the
electrical connection is established correctly
and when the lighting system is working prop- erly. The function of other systems, such as
ESP ®
,P ARKTRONIC, Active Parking Assist,
Active Blind Spot Assist or Lane Keeping
Assist also depends on this. Uncoupling
atrailer G
WARNING
If you uncouple atrailer with an engaged over-
run brake, you could trap your hand between
the vehicle and the trailer drawbar. This poses ar isk of injury.
Do not uncouple atrailer with an engaged
overrun brake. G
WARNING
Vehicles with level control:
If you disconnect the trailer cable, the vehicle is lowered. This can cause you or others to
become trapped between the vehicle body
and tyres, or underneat hthe vehicle. This
poses arisk of injury.
Make sure that no-one is in the immediate
vicinit yofthe wheel arch or underneat hthe
vehicle when disconnectin gthe trailer cable.
! Do not disconnect
atrailer with an engaged
overrun brake. Otherwise, your vehicle could
be damaged by the rebounding of the overrun
brake.
! Remove the installed adapter cable before
folding in the ball coupling. Otherwise, dam-
age may occur to the rear bumper and the
adapter cable. X
Make sure that the transmission is in position
P.
X Apply the electric parking brake.
X Secure the trailer against rolling away.
X Remove the trailer cable and decouple the
trailer. Trailer power supply
! You can connect accessories to the perma-
nent power supply up to amaximum of 240 W.
You cannot charge atrailer battery using the
power supply.
When it leaves the factory, your vehicle's trailer
socket is equipped with apermanen tpower
supply and apower supply that is switched on
via the ignition lock.
The permanen tpower supply is supplied via
trailer socket pin 9.
The power supply that is switched on via the
ignition lock is supplied via trailer socket pin 10.
The trailer's permanen tpower supply is
switched off in the event of low vehicle supply
voltage and after six hours at the latest.
You can find more information about fitting the
trailer electric sataqualified specialist work-
shop.
X To switch the connected power supply on
or off: turn the key to position 2or 0respec-
tively (Y page 145). Failure check for LEDs
If LED lamps are fitted in the trailer, amalfunc-
tion message may appear in the multifunction
display even if there is no fault. The reason for
the error message may be that the curren thas
fallen below the minimum of 50 mA.
To ensure reliable operation of the failure indi-
cator, each LED chain in the trailer lighting must
be guaranteed aminimum curren tof50mA. Trailer with 7-pin connector
General notes Trailer with 7-pin connector:
you can connect
to the 13-pin socket on the ball coupling using
an adapter or, if necessary, an adapter cable. Towing
atrailer
229Driving and parking Z

Both can be obtained at
aquali fied specialist
workshop.
Fitting the adapter !
Make sur
ethat there is sufficient cable play
so that the cable cannot become detached
whe ncornering.
! Remove the installed adapter cable before
folding in the ball coupling. Otherwise, dam-
ag em ay occu rtothe rea rbum pera nd the
adapter cable. X
Ope nthe socket cover.
X Insert the plug connector with lug :into
groove =on the socket.
X Turn bayonet connection ;around clock-
wise to the stop.
X Let the cover engage.
X If yo uare using an adapter cable, secure the
cable to the trailer with cable ties. 230
Towingat
railerDrivingand parking

Problems with trailer towing
Problem
Possible causes/consequences and
M
MSolutions The unlocked ball cou-
pling cannot be
engaged. X
Consult aqualified specialist workshop. The ball coupling does
not unlock, even though:
R the vehicle is station-
ary
R no trailer cable is con-
nected
R the release button to
unlock the ball cou-
pling has been pulled
for more than asec-
ond The on-board voltage is insufficient.
X Start the engine.
If the ball coupling still does not unlock: X Consult aqualified specialist workshop. Towing
atrailer
231Driving and parking Z

Display messages
Possible causes/consequences and
M
MSolutions Blind Spo
tAssist
Blind Spo tAssist
currently unavaila‐
currently unavaila‐
ble ble See
SeeOwner's
Owner's Man‐
Man‐
ual
ual orActive Blind
Active Blind
Spo tA ssist cur‐
Spo tA ssist cur‐
rently unavailable
rently unavailable
See Owner' sManual
See Owner' sManual Blind Spot Assis
torActiveBlind Spot Assis tistemporarily inoperative.
Possibl ecauses:
R ther adar sensor system is outside th eoperating temperature range
R ther adar sensor system is temporarily inoperative, e.g. due to elec-
tromagneti cradiation emitted by nearby TV or radi ostation sor
other source sofelectromagneti cradiation
Once th ecauses listed abov enolonger apply, th edisplay message
goe sout.
Blind Spot Assis torActiveBlind Spot Assis tisoperational again.
If th edisplay message does no tdisappear:
X Pull ove rand stop th evehicl esafely as soo naspossible, paying
attention to roa dand traffic conditions.
X Safeguar dthe vehicl eagainst rollin gaway (Y page 172).
X Restart th eengine. Blind Spo
tAssist
Blind Spo tAssist
not available when not available when
towing atrailer
towing atrailer
See Owner' sManual
See Owner' sManual
or Active Blind Active Blind
Spo tA ssist not
Spo tA ssist not
available whe ntow‐
available whe ntow‐
ing atraile rSee
ing atraile rSee
Owner' sManual
Owner' sManual Blind Spot Assis
torActiveBlind Spot Assis tisdeactivated while tow-
ing atrailer.
You hav eestablished th eelectrical connection between th etrailer and
your vehicle.
X Press aon thesteering whee ltoc onfir mthedisplay message. Blind Spo
tAssist
Blind Spo tAssist
inoperative
inoperative or
Active Blind Spot Active Blind Spot
Assist inoperative Assist inoperative Blind Spot Assis
torActiveBlind Spot Assis tisfaulty.
X Consult aqualified specialist workshop. Par
kA ssist cancel‐
Par kA ssist cancel‐
led
led The driver's door is open.
X Repeat th eparking gap measuremen tand parking process wit hthe
driver's door closed. You touched th
emultifunction steering whee lwhile steering inter-
vention was active.
X Whil esteering intervention is active ,makes uren otto touch the
multifunction steering wheel. The vehicl
ehas started to skid and ESP ®
has intervened.
X Use Active Parking Assis tagain later (Y page 201). Par
kA ssist inoper‐
Par kA ssist inoper‐
ative
ative PARKTRONI
Cismalfunctioning or faulty.
X Follow th einstruction sand helpful hints in th e"Problem swith
PARKTRONIC" section (Y page 201).
If th emultifunction display still shows th edisplay message:
X Consult aqualified specialist workshop. 272
Display
messagesOn-boardcomputer an ddisplays

Stowage areas
Loading guidelines
G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Exhaust
gases can enter the vehicle interior if the boot
lid is open when the engine is running, espe-
cially if the vehicle is in motion. There is arisk
of poisoning.
Always switch off the engine before opening
the boot lid. Never drive with the boot lid
open. G
WARNING
If objects, luggage or loads are not secured or not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is arisk of injury, especially
when braking or abruptly changing directions.
Always store objectssot hat they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey. G
WARNING
The exhaust tail pipe and tail pipe trim can
become very hot. If you come into contact
with these parts of the vehicle, you could burn
yourself. There is arisk of injury.
Always be particularly careful around the
exhaust tail pipe and the tail pipe trim. Allow
these components to cool down before touch-
ing them.
The handling characteristics of aladen vehicle
are dependent on the distribution of the load
within the vehicle. For this reason, you should
observe the following notes when transporting a
load:
R never exceed the maximum permissible gross
vehicle weight or the permissible axle loads
for the vehicle (including occupants).
R the boot is the preferred place to store
objects.
R position heavy loads as far forward as possi-
ble and as low down in the boot as possible. R
the load must not protrude above the upper
edge of the seat backrests.
R always place the load behind unoccupied
seats if possible.
R secure the load with sufficiently stronga nd
wear-resistant lashing material. Pad sharp
edges for protection.
i Load restraint
sare available at any qualified
specialist workshop, e.g. aMercedes-Benz
Service Centre. Stowage compartments
Important safety notes G
WARNING
If objectsint he passenger compartmen tare
stowed incorrectly, they can slide or be
thrown around and hit vehicle occupants. In
addition, cupholders, open stowage spaces
and mobile phone brackets cannot always
retain all objectst hey contain. There is arisk
of injury, particularly in the event of sudden
braking or asudden change in direction.
R Always stow objectssot hat they cannot be
thrown around in such situations.
R Always make sure that objectsdon ot pro-
trude from stowage spaces, parcel nets or
stowage nets.
R Close the lockable stowage spaces before
startingaj ourney.
R Always stow and secure heavy, hard, poin-
ted, sharp-edged, fragile or bulky objectsin
the boot.
Observe the loading guidelines (Y page 308).308
Stowage areasStowing and features

Fron
tstowage compartments Glov
ecompartment X
To open: pull handle :and open glov ecom-
partmen tflap ;.
X To close: foldg lovec om partmen tflap ;
upward suntil it engages.
Object sinA4format or an iPad ®
,f or example,
can be store dintheglov ecom partment. For
vehicles wit haperfum eatomiser (Y page 136)
th es torag espac eoft heglov ecom partmen tis
restricted. The glov
ecom partmen tcan only be locke dand
unlocked usin gthe emergenc ykey element
(Y page 82).
X To lock: insert theemergenc ykey element
int ot he locka nd tur nit90°clockwise to
position 2.
X To unlock: insert theemergenc ykey element
int othe lockand tur nit90°anti-clockwise to
position 1. Spectacles compartment
X
To open: press marking :.
The spectacles compartmen topen sdown-
wards.
Mak esure that th espectacles compartmen tis
always closed while th evehicl eisinm otion.
Stowage compartment in th efront centre
console Illustration
:vehicles wit hDIRECT SELECT lever
X Briefly press trim ;in th edirection of the
arrow.
Cover :swings upwards.
Stowage compartment in th edoors Stowage areas
309Stowing and featu res Z

In stowage space
:in the doors you can store
bottles with acapacity of up to 1.0 l,ar olled-up
fluorescent jacke t(driver' sdoor )and th evehicle
documen twallet (front-passenger door).
Stowage compartment/telephone com-
partmen tunder th earmre st X
To open: pressbutton :at th efront.
The stowage spac eopens.
Dependin gonthevehicle's equipment ,the fol-
lowin gmay be in th estowage space:
R am ultimedia connecto runit with 2USBports
and an SD car dslot,e.g.f or use with an
iPod ®
,i Phone ®
or MP3 player; see th esepa-
rat eo peratin ginstructions
R am obile phon ebracket
R as mall stowage spac eintheupper fron tsec-
tion Additional stowage space
Dependin gontheequipment ,the following
additional stowage areas are availabl einthe
vehicle:
R car dand coi nholde rint hedashboard above
th el ight switch (no tsuitable for holding thin
object ssuchass hoppin gtokens)
R theo pen stowage compartmen tinthecentre
console
R stowage net in th efront-pa ssenger footwell
R map pockets on th eback of th edriver' sand
front-passenger seat
R thel uggage net on th eleft-hand side in the
boot
Observ ethe loadin gguidelines (Y page 308)
and th esafety note sregardin gstowage spaces
(Y page 308). Through-loading facilit
yintherear
bench seat
Important safety notes G
WARNING
If th erear bench seat/rear seat and seat
backres tare no tengaged they coul dfold for-
wards ,e.g.w hen braking suddenly or in the
even tofana ccident.
R The vehicle occupant would thereb ybe
pushe dintot he seat belt by th erear bench
seat/rear seat or by th eseat backrest. The
seat belt canno tprotect as intended and
coul dresult in additional injury.
R Object sorloads in th eboot canno tbe
restraine dbytheseat backrest.
This pose sanincreased risk of injury.
Before ever ytrip, mak esure that th eseat
backrests and th erear bench seat/rear seat
are engaged before ever ytrip.
Observ ethe loadin gguidelines (Y page 308).
The outside and th emiddle rear seat backrests
can be folded down separately to increas ethe
boot capacity. The division ratio is 40 %to20%to
40%.
Foldin gthe rea rseat backres tforward X
Vehicle swithout memory function :ifneces-
sary, mov ethe driver' sorfront-pa ssenger
seat forwards.
X Vehicle swith memory function :when on eor
bot hpartsoft herear seat backres tare folded
forwards ,the respectiv efront seat moves
forward slightly, when necessary, in orde rto
avoid contact.
X Open th eboot.
X Fully insert th erear seat backres thead
restraints. 310
Stowage areasStowing and features

Left and right seat backrest
X Pullr ight-hand or left-hand rear seat backrest
release handle :.
The corresponding rear seat backrest is
released.
Vehicle swith memory function: when one or
both parts of the rear seat backrest are folded
forwards, the respective front seat moves
forward slightly, when necessary ,inorder to
avoid contact. Centre rear seat backrest
X
Pullr elease lever =forwards.
Rears eat backrest ;is released. X
Fold corresponding rear seat backrest ;for-
wards.
X Move the driver's or front-passenger seat
back if necessary.
Folding the rear seat backrest back !
Make sure that the seat belt does not
become trapped when folding the rear seat
backrest back. Otherwise ,itcould be dam-
aged. Left and right seat backrest
X Move the driver's or front-passenger seat
forward if necessary.
X Fold rear seat backrest :back until it
engages.
If the rear seat backrest is not engaged and
locked, this willbes hown in the multifunction
display in the instrument cluster. Awarning
tone also sounds. Centre rear seat backrest
X
Move the driver's or front-passenger seat
forward if necessary.
X Fold seat backrest :back until it engages.
Red lock status indicator ;is no longer visi-
ble. Stowagea
reas
311Stowing and features Z

Stowage well under the boot floor
! Remove the handle again before closing the
boot lid and snap it in tightly to prevent the
handle flap from protruding. Otherwise, you
could damage the handle. X
To open: pull handle :up. X
Hook handle :into rain trough ;. Roof carrier
Important safety notes G
WARNING
When aload is transported on the roof, the
vehicle's centre of gravity rises and the han-
dling changes. If you exceed the maximum
roof load, the handling as well as steering and braking characteristics are severely affected.
There is arisk of an accident.
Always observe the maximum roof load and
adapt your driving style.
You will find information on the maximum roof
load in the "Technical data" section
(Y page 377). !
Mercedes-Benz recommends that you only
use roof carriers that have been tested and
approved for Mercedes-Benz vehicles. This
helps to prevent damage to the vehicle.
Position the load on the roof carrier in such a way that the vehicle will not sustain damage
even when it is in motion.
Depending on the vehicle equipment, ensure
that when the roof carrier is fitted you can:
R raise the sliding sunroof/panorama sliding
sunroof fully
R open the boot lid fully
An incorrectly secured roof carrier or roof load
may become detached from the vehicle. You
must therefore ensure that you observe the roof
carrier manufacturer's installation instructions.
Vehicles with panoramas liding sunroof:if a
roof carrier is fitted, the panorama sliding sun-
roof cannot be opened. In order to allow venti-
lation of the vehicle interior, you can raise the
panorama sliding sunroof.
If ar oof carrier approved by Mercedes-Benz
makes contact with the panorama sliding sun-
roof, the sunroof will lower slightly but remain
raised in the rear.
Attaching the roof carrier X
Open covers :carefully in the direction of
the arrow.
X Fold covers :upwards.
X Only secure the roof carrier to the anchorage
points under covers :.
X Observe the manufacturer's installation
instructions. Stowage areas
313Stowing and features Z

Features
Cup holders
Important safety notes Vehicles wit
hmanual transmission: G
WARNING
The cup holder canno tsecure adrinks con-
taine rinp laced urin gaj ourney. If you use a
cup holder durin gajourney, th edrinks con-
taine rcould be flun garoun dand liquid could
be spilt .Vehicl eoccupant scould come into
contact wit hthe liquid and ,inparticular, be
scalded by hot liquid. You could be distracted
from th etraffic situation and lose control of
th ev ehicle. Ther eisariskofana ccidentand
injury.
Only use th ecup holder when th evehicl eis
stationary. Only plac econtaine rs ofasuitable
siz eint hecup holder. Seal th econtaine r, in
particular when it contains hot liquid. G
WARNING
If object sinthepassenger compartmen tare
stowed incorrectly, they can slide or be
thrown aroun dand hit vehicl eoccupants. In
addition ,cupholders, open stowage spaces
and mobile phon ebrackets canno talways
retain all object stheyc ontain. Thereisar isk
of injury, particularly in th eevent of sudden
braking or asudde nchang eind irection.
R Always stow object ssothatthe yc anno tbe
thrown aroun dinsuchs ituations.
R Always mak esure that object sdonotpro-
trude from stowage spaces, parcel nets or
stowage nets.
R Close th elockable stowage spaces before
starting ajou rney.
R Always stow and secure heavy, hard ,poin-
ted, sharp-edged, fragile or bulk yobject sin
th eb oot.
! Only use th
ecup holders for containers of
th er ight siz eand whic hhave lids. The drinks
could otherwise spill. !
Do no
texposed rinks bottles in th ecup
holder in th ecentr econsol etoc ontinuous,
stron gand direct sunlight. The passenger
compartmen tinthearea of th ecentr econ-
sole can otherwise be damaged by th econ-
centrate dand reflecte dsunlight.
Observ ethe loadin gguidelines (Y page 308).
Cup holders in th efront centre console If you remove th
ecup holder insert ,you can use
th er esulting compartmen tfor stowage.
Vehicles wit hmanual transmission:
X To remove: slide upper cup holder sec-
tions :on th edriver' sand front-passenger
side sinwards until they release.
X Slide th ecup holder forwards slightly and
then pull it upwards ;. X
To fit:i nsert th ecup holder at th efront and
then slide it backwards until it reaches edge
= of th eunderside of th estowage compart-
ment. Inser tthe cup holder so that th ewedge
of th eupper section of th ecup holder faces
forwards.
X Slide upper cup holder sections :on the
driver' sand front-passenger side soutwards,
until bot hlefta nd right sides ;engage. 314
FeaturesStowing and featu
res