2018 MERCEDES-BENZ C-CLASS COUPE jump start

Obser
vethis Owner's Manual.
Obser vethefo llowing if you do not intend touse
th eve hicle over an extended pe riod of time:
R Activate standby mode.
R Alternatively: connect the battery toa bat‐
te ry charge r appro vedby Mercedes-Benz or
consult a qualified specialist workshop to
disconnect the batter y. Note
s onstarting assi stance and on charg‐
ing the12 V battery Ve
hicles with a lithium-ion battery
When charging the battery and during starting
assis tance, al ways use the jump-s tart connec‐
tion point in the engine compartment. 000E
NO
TEDama getothe battery from over‐
vo ltage When
charging using a bat tery charge r with‐
out a maximum charging voltage, the battery
or the on-board electronics may be damaged. 0007
Only use battery charge rs with a maxi‐
mum charging voltage of 14.4 V. All
other vehicles
When charging the battery and during starting
assis tance, al ways use the jump-s tart connec‐
tion point in the engine compartment.
000E NO
TEDamaging the battery thro ugh
ove rvoltage When using a battery
charge r without a maxi‐
mum charging voltage, the battery or the
ve hicle electronics may be damaged. 0007
Only use battery charge rs with a maxi‐
mum charging voltage of 14.8 V. 000A
WARNING Risk ofexplosion from hydro‐
ge nga s igniting
A battery generates hydrogen gas during the
ch arging process. If there is a short circuit or
spar ksstart toform ,th ere is a danger of the
hy drogen gas igniting. 0007
Make sure that the positive term inal of
th e connected battery does not come
into conta ct withvehicle parts. 0007
Never place me tal objects or tools on a
batter y. 0007
When connecting and disconnecting the
batter y,yo u must obse rveth e descri‐
bed order forth e battery clamps. 0007
When giving starting assis tance, al ways
make sure that you on lyconnect bat‐
te ry term inals with identical polarity. 0007
During starting assis tance, you must
obse rveth e described order for con‐
necting and disconnecting the jump
lead. 0007
Do not connect or disconnect the bat‐
te ry cla mp s while the engine is running. Breakdown assi
stance 421

000A
WARNING Risk ofexplosion during
ch arging process and starting assis tance
During thech arging process and starting
assis tance, the battery may release an explo‐
sive gas mixture. 0007
Avoid fire , naked flames, creating
spar ksand smoking. 0007
Make sure that there is suf ficient venti‐
lation du ring thech arging process and
during starting assis tance. 0007
Do not lean over a batter y. 000A
WARNING Risk ofexplosion from a fro‐
zen battery
A dischar ged battery may freeze at temp era‐
tures slightly abo veor below freezing point.
During starting assis tance or battery charg‐
ing, bat tery gas may be released. 0007
Alw aysth aw a frozen bat tery out first
before charging it or per form ing start‐
ing assis tance. If
th e indicator/warning lamps in the instrument
clus ter do not light up at low temp eratures, it is
ve ry likely that the dischar ged battery has fro‐
zen. In this case you may neither jump-s tart the
ve hicle nor charge the batter y.
The service life of a battery that has been
th awe d may be dramatically shor tened. The
st arting characteristics may be impaired, espe‐
cially at low temp eratures.
It is recommended that you ha veathaw ed bat‐
te ry checked at a qualified specialist workshop.
All vehicles
000E NO
TEDama gecaused bynumerous or
ex tended attem ptsto start the engine Nume
rous or extended attem ptsto start the
engine may damage the catalytic con verter
due tonon-combu sted fuel. 0007
Avoid numerous and extended attem pts
to start the engine. Obser
vethefo llowing points during starting
assis tance and when charging the battery:
R Only use undamaged jump lead/charging
cables with a suf ficient cross-section and
insula tedte rm inal clamps.
R Non- insulated parts of thete rm inal clamps
must not come into con tact wi thother me tal
parts while the jump lead/charging cable is
connected tothe battery/jump-s tart connec‐
tion point.
R The jump lead/charging cable must not
come into contact wi thany parts which may
mo vewhen the engine is running.
R Alw ays make sure that nei ther you nor the
battery is elect rostatically charge d.
R Keep away from fire and naked flames.
R Do not lean overth e batter y.
Obser vethe additional following points when
ch arging the battery:
R Only use battery charge rs tested and
appr oved for Mercedes-Benz.
R Read the battery charge r's operating instruc‐
tions before charging the batter y. 422
Breakdown assis tance

Obser
vethe additional following points during
st arting assistance:
R Starting assis tance may only be pr ovided
using batteries with a nominal voltage of
12 V.
R The vehicles must not touch.
R Petrol engine: only acceptstarting assis‐
ta nce if the engine and exhaust sy stem are
cold. St
arting assi stance and charging the12 V
battery Re
quirements:
R The vehicle is secured with the electric park‐
ing brake.
R Automatic transmission: the transmission
is in position 005D.
R Manual transmission: the transmission is in
neutral.
R The ignition and all electrical consumers are
switched off.
R The bonn etis open. 0007
Fold co ver1 up in the direction of the
ar row. 0007
Slide co ver2 of positive clamp 3onthe
jump-s tarting connection point in the direc‐
tion of the ar row. 0007
Connect positive clamp 3onyour vehicle to
th e positive pole of the donor battery using
th e jump lead/charging cable. Alw ays begin
with positive clamp 3onyour ow nve hicle
fi rs t. Breakdown assi
stance 423

0007
During starting assi stance: start the
engine of the donor vehicle and run at idle
speed. 0007
Connect the negative pole of the donor bat‐
te ry and ear thpoint 4ofyour ow nve hicle
by using the jump lead/charging cable. Begin
with the donor battery firs t. 0007
During starting assi stance: start the
engine of your ow nve hicle. 0007
During thech arging process: start the
ch arging process. 0007
During starting assi stance: letthe engines
ru nfo r se veral minutes. 0007
During starting assi stance: before discon‐
necting the jump lead, switch on an electrical
consumer in your ow nve hicle, e.g. there ar
wind owheater or lighting.
When thest arting assis tance/charging process
is compl ete: 0007
First,re mo vethe jump lead/charging cable
from ear thpoint 4and negative pole of the
donor batter y,then from positive clamp 3
and positive pole of the donor batter y.Begin ea
ch time wi th the conta cts onyour own
ve hicle firs t. 0007
Afterre moving the jump lead/charging
cable, close co ver2 of positive clamp 3. 0007
Close co ver1.
Fu rther information can be obtained at a quali‐
fi ed specialist workshop. Re
placing the 12V battery 0007
Obser vethe no tes on the12 V battery
(0013 page419).
Mercedes-Benz recommends that you ha vethe
12 V battery replaced at a qualified specialist
wo rkshop, e.g. at a Mercedes-Benz Service
Centre.
Obser vethefo llowing no tes if youwa ntto
re place the battery yourself:
R Alw aysre place a faulty bat tery with a battery
which meets the specific vehicle requ ire‐
ments.
The vehicle is equipped with an AGMtech nol‐
ogy battery (Absorbent Glass Mat) or a li th‐ium-ion batter
y.Fu llve hicle functionality is
only guaranteed with an AGM battery or lith‐
ium-ion batter y.Fo r saf etyre asons,
Mercedes-Benz recommends that you on ly
use bat teries which ha vebeen tested and
appr oved foryo ur vehicle byMercedes-Benz.
R Carryover de tachable parts, such as vent
hoses, elbow fittings or term inal co vers from
th e battery being replaced.
R Make sure that theve nt hose is al ways con‐
nected tothe original opening on the side of
th e batter y.
Fit any existing or supplied cell caps.
Otherwise, gases or battery acid could
escape.
R Make sure that de tach able parts are recon‐
nected in the same way. To
w- starting or towing away Pe
rm itted towing me thods Mercedes-Benz
recommends transporting your
ve hicle in the case of a breakdown, rath er than
to wing it away. 424
Breakdown assis tance

Display messages
Possible causes/consequences and 0050
0050Solutions
Cannot start engine See
Owner's Manual *T
hecharge leve l of the 48 V battery is too lo w.You can no lon gerst art the engine. 0007
Switch off electrical consumers that are not required. 0007
Connect a suitable charge r appro vedby Mercedes-Benz with suf ficient charge output tothe jump-s tart connec‐
tion point of the12 V battery (0013 page 423).
The 48 V battery is charge d via thevo ltage con verter in theve hicle.
Motor can be started again *T
he 48 V battery has been charge d automatically via thevo ltage con verter. 0007
Start the engine and drive theve hicle for a while tocharge the12 V battery and the 48 V batter y.
00AC *T
hefan mo tor is defective. 0007
Avoiding high loads on the engine, drive tothe nearest qualified specialist workshop. In doing so, ensure that
th e coolant temp erature display remains below 120 °C.
00AC
Coolant Stop vehicle
Switch engine off *T
he coolant is too hot. 0007
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. 000A
WARNING Danger of bu rns when opening the bonn et
If yo u open the engine bonn etwhen the engine has overheated or during a fire inthe engine compartment, you
could come into contact wi thhot gases or other escaping operating fluids. 0007
Before opening the bonn et, allow the engine tocool down. 0007
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. Display messages and
warning/indicator lamps 501

ISOFIX
child seat securing sy stem
Fitting .................................................... 60
Seats suitable for attaching ................... 57J
Jack Declaration of conformity ......................25
St orage location ..................................4 47
Jump-start connection ............................423
Gene ral no tes ...................................... 421 K
Ke y.............................................................. 71
Ac oustic locking verification signal ........ 72
Battery ................................................... 73
Emergency key ...................................... 73
Energy consumption .............................. 72
Fe atures ................................................ 71
Ke yring attachment .............................. 73
Overview ................................................ 71
Pa nic alarm ............................................ 72
Problem .................................................74
Un locking setting .................................. .72Ke
y functions
Deactivating .......................................... 72
KEYLESS-GO Locking theve hicle ................................ 77
Problem .................................................78
Un locking setting .................................. .72
Un locking theve hicle ............................77
Kickd own.................................................1 70
Using ................................................... 17 0
Knee airbag ................................................ 39 L
Lamp see In terior lighting
Lamps (instrument display) see Warning/indicator lamps
Lane de tection (au tomatic)
see Active Lane Keeping Assist
Lane Keeping Assist
see Active Lane Keeping Assist
Language .................................................2 98
No tes .................................................. 298
Setting .................................................2 98LED light
see Intelligent Light Sy stem
Le vel control sy stem
see AIRMATIC
Light switch Overview ............................................ .126
Lighting see Interior lighting
see Lights
Lights ........................................................ 12 6
Ac tive headla mps ................................ 12 9
Ad aptive Highbeam Assist .................. .131
Ad justing the instrument lighting ........ 260
Ad versewe ather light .......................... 131
Au tomatic driving lights ....................... 127
City lighting .......................................... 131
Combination swit ch............................. 12 8
Corne ring light ..................................... 13 0
Driving ab road (symm etrical dipped
beam) .................................................. 12 6
Fo g light (extended range) ................... 13 0
Haza rdwa rning lights .......................... 12 9
Headla mpflasher ................................ 12 8
High beam ........................................... 12 8564
Index

Fu
nction .............................................. 187
St anding lights ........................................ 12 6
St art/s top button
Pa rking theve hicle .............................. 178
St arting theve hicle ............................. 15 3
Switching on the po wer supply or
ignition ................................................ 15 2
St art/s top function
see ECO start/ stop function
St arting assi stance
see Jump -sta rt connection
St arting the engine
see Vehicle
St arting-o ffaid
see Hill Start Assist
St ation
Deleting ............................................... 380
Direct frequency entry ........................ 380
Fr equency fix ....................................... 381
Moving ................................................ 380
Sea rching ............................................ 380
Setting .................................................3 80
St oring ................................................ 380 St
ation list
Calling up ............................................ 380
St ation presets
Modifying ............................................ 380
St ation tracking
Setting ................................................. 381
St ationary heater/ventilation
Displ ays (remo tecontrol) .................... 14 8
Problems (remo tecontrol) ................... 15 0
Re placing the battery (remo tecon‐
trol) ...................................................... 14 9
Setting (multimedia sy stem) ................1 47
Setting (remo tecontrol) ...................... 14 8
Switching on/off (control panel) ......... 14 6
ST EER CONT ROL
Fu nction/no tes .................................... 194
Ste ering wheel ........................................ 256
Ad justing (electrically) ......................... 108
Ad justing (manually) ............................ 107
Buttons ................................................ 256
Ope rating the memory function ..........1 09
St eering wheel heater .......................... 108
Ste ering wheel gearshift paddles ..........16 9Ste
ering wheel heater
Swit ching on/off ................................ .108
St ow age areas
see Loading
see Stow age compartment
St ow age comp artment............................ 11 2
Armrest ................................................ 11 2
Centre console .................................... .112
Door ..................................................... 11 2
Glo vebox .............................................1 12
Spectacles compa rtment .................... .113
St ow age comp artments
see Loading
see Stow age compartment
St ow age space under the boot floor ......11 7
Sulphur content ...................................... 463
Sun visor Operating ............................................ 14 0
Sur round lighting .................................... 13 4
Setting ................................................. 13 4
Sur round View
see 360° Camera 576
Index