2014 MERCEDES-BENZ C-CLASS SALOON jump start

Automatic transmission emer-
gency running mode
.........................200
Auxiliary heating/ventilation
Important safety notes .................. 172
Problem (display message) ............ 177
Remote control .............................. 173
Setting the departure time ............. 175
Switching on/off (on the centre
console) ......................................... 173
Axle load, permissible (trailer tow-
ing) ...................................................... 480 B
Bag hook ............................................ 374
Ball coupling
Folding in ....................................... 286
Folding out ..................................... 285
BAS (Brake Assist System) ................. 75
BAS PLUS with Cross-Traffic Assist (Brake Assist PLUS with Cross-
Traffic Assist)
Function/notes ................................ 75
Important safety notes .................... 76
Battery (high-voltage)
see High-voltage battery
Battery (key)
Checking .......................................... 94
Important safety notes .................... 93
Replacing ......................................... 94
Battery (vehicle)
Charging ........................................ 416
Display message ............................ 334
Important safety notes .................. 412
Jump starting ................................. 418
Belt
see Seat belts
Belt tensioner
Activation ......................................... 60
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 309
Display message ............................ 339
Notes/function .............................. 259
Trailer towing ................................. 261
see Active Blind Spot Assist
BlueTEC (AdBlue ®
) ............................ .472 BlueTEC
®
Topping up AdBlue ®
....................... 204
Bonnet
Active bonnet (pedestrian protec-tion) ............................................... 390
Closing .......................................... .392
Display message ............................ 347
Important safety notes .................. 390
Opening ......................................... 391
Boot
Emergency release ........................ 105
Important safety notes .................. 101
Locking separately ......................... 105
Opening/closing (automatically
from inside) ................................... 104
Opening/closing (automatically
from outside) ................................. 102
Opening/closing (from the out-
side, HANDS-FREE ACCESS) .......... 103
Opening/closing (manually from
outside) ......................................... 102
Boot lid
Display message ............................ 347
Obstacle recognition ..................... .101
Opening dimensions ..................... .476
Opening/closing ............................ 101
Boot load (maximum) ........................ 476
Box (boot) .......................................... .374
Brake
EBD ................................................. .82
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 322
Notes ............................................. 475
Brake force distribution, elec-
tronic
see EBD (electronic brake force
distribution)
Brake lamps
Adaptive ........................................... 80
Display message ............................ 330
Brake pedal
Pedal resistance/pedal travel .......... 44
Brakes
ABS .................................................. 74
Adaptive Brake Assist ...................... 79 6
Index

Electronic Stability Program
see ESP ®
(Electronic Stability Program)
Emergency
Automatic measures after an acci-
dent ................................................ .63
Emergency key
Unlocking the driver's door .............. 98
Emergency key element
Function/notes ................................ 93
Inserting .......................................... 93
Locking vehicle .............................. 100
Removing ........................................ .93
Emergency release
Driver's door .................................... 98
Emergency spare wheel
General notes ................................ 461
Important safety notes .................. 461
Inflating the collapsible spare
wheel ............................................ .462
Technical data ............................... 464
Emergency unlocking
Vehicle ............................................. 98
Energy flow display ........................... 273
Engine
Display message ............................ 333
ECO start/stop function ................ 186
Engine number ............................... 468
Jump-starting ................................. 418
Running irregularl y......................... 189
Starting problems .......................... 189
Starting the engine with the key .... 183
Starting with the Start/Stop but-
ton ................................................. 184
Stopping ........................................ 208
Tow-starting (vehicle) ..................... 424
Warning lamp (engine diagnos-
tics) ............................................... 360
Engine electronics
Notes ............................................. 466
Problem (fault) ............................... 189
Engine oil
Additives ........................................ 474
Checking the oil level ..................... 392
Checking the oil level using the
dipstick .......................................... 392
Display message ............................ 335
Filling capacity ............................... 474
Notes about oil grade s................... 473 Notes on oil level/consumption .... 392
Topping up ..................................... 392
Viscosity ........................................ 474
Environmental protection
Returning an end-of-life vehicle ....... 24
ESP ®
(Electronic Stability Pro-
gram)
Activating/deactivating ................... 81
Characteristics ................................. 81
Deactivating/activating ................. 307
Display message ............................ 315
ETS/4ETS ........................................ 80
Function/note s................................ 80
General notes .................................. 80
Important safety guidelines ............. 80
Trailer stabilisation .......................... 82
Warning lamp ................................. 357
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 80
Exhaust
see Exhaust pipe
Exhaust pipe
Cleaning ......................................... 402
Exhaustive discharging (high-volt-
age battery) ....................................... 415
Extended overrun mode ................... 280
Exterior lighting
Cleaning ......................................... 400
see Lights
Exterior mirrors
Adjusting ....................................... 128
Anti-dazzle mode (automatic) ........ 129
Folding in/out (automatically )....... 128
Folding in/out (electrically) ........... 128
Out of position (troubleshooting) ... 129
Parking position ............................. 129
Resetting ....................................... 128
Storing settings (memory func-
tion) ............................................... 131 F
Fault message see Display messages
Features ............................................. 376
Filler cap
see Fuel filler flap
Fire extinguisher ............................... 407 Index
11

Instrument cluster
Overview .......................................... 34
Power display ................................ 272
Warning and indicator lamps .......... .35
Instrument cluster lighting .............. 292
Intelligent Light System
Activating/deactivating ................ .311
Display message ............................ 331
Overview ........................................ 138
Setting the dipped-beam head-
lamps for driving on the right/left .. 311
Interior lighting
Control .......................................... .141
Emergency lighting ........................ 141
Overview ........................................ 140
Reading lamp ................................. 140
Interior motion sensor
Deactivating ..................................... 87
Function .......................................... .86
Priming ............................................ 86
Switching off .................................... 87
Internal combustion engine
Malfunction .................................... 282
ISOFIX child seat securing system ....65J
Jack Storage location ............................4 07
Using ............................................. 439
Jump starting (engine) ......................418 K
Key Changing the battery ....................... 94
Checking the battery ....................... 94
Convenience closing feature .......... 108
Convenience opening feature ....... .107
Display message ............................ 350
Door central locking/unlocking ....... 91
Emergency key element ................... 93
Important safety notes .................... 90
KEYLESS-GO start function .............. 92
Loss ................................................. 95
Modifying the programming ............. 92
Overview .......................................... 90
Positions (ignition lock) ................. 181 Problem (malfunction) ..................... 95
Starting the engine ........................ 183
Key positions
Key ................................................ 181
Start/Stop button .......................... 181
KEYLESS-GO
Convenience closing ..................... .108
Deactivation ..................................... 91
Locking ............................................ 91
Removing the Start/Stop button ... 182
Unlocking ......................................... 91
Kickdown
Driving tips ................................... .196
Kneebag ............................................... 53 L
Lamps see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 309
Display message ............................ 338
Function/informatio n.................... 261
see Active Lane Keeping Assist
Lane package ..................................... 259
Lashing eyelets ................................. 373
Licence plate lamp (display mes-
sage) ................................................... 331
Light sensor (display message) ....... 332
Lighting
see Lights
Lights
Activating/deactivating the Intel-
ligent Light System ........................ 311
Active light function ....................... 138
Adaptive Highbeam Assist PLUS .... 139
Automatic headlamp mode ............ 135
Cornering light function ................. 138
Dipped-beam headlamp s............... 135
Driving abroad ............................... 134
Foglamps (extended range) ........... 139
Hazard warning lamps ................... 137
Headlamp flashe r........................... 137
Headlamp range ............................ 136
Intelligent Light System (func-
tion) ............................................... 138
Light switch ................................... 134 14
Index

Problem
Possible causes/consequences and
M
MSolutions The engine cannot be
started using the key. The on-board voltage is too low.
X Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary
(Y page 416).
or
X Jump-start the vehicle (Y page 418).
or
X Consult a qualified specialist workshop. The engine cannot be
started using the Start/
Stop button. The key is
in the vehicle. The vehicle is locked.
X Unlock the vehicle and try to start the vehicle again. The key battery is discharged or nearly discharged.
X Check the key battery (Y page 94) and replace it if necessary
(Y page 94).
If this does not work: X Start your vehicle with the key in the ignition lock. There is interference from a powerful source of radio waves.
X Start your vehicle with the key in the ignition lock. You have lost a key. X
Have the key deactivated at a qualified specialist workshop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. You have lost the emer-
gency key element. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. Doors
Important safety notes
United Kingdom only: G
WARNING
When the double locks are activated, the
doors can no longer be opened from the
inside. People in the vehicle can no longer get out, e.g. in hazardous situations. There is a
risk of injury. Therefore, do not leave any people unsuper-
vised in the vehicle, particularly children, eld- erly people or people in need of special assis-
tance. Do not activate the double lock when
people are in the vehicle.
If the vehicle has been locked from the out-
side, the double-lock function is activated as
standard. It is then not possible to open the
doors from inside the vehicle. You can deac-
tivate the double lock function by deactivat-
ing the interior motion sensor (Y page 86).96
DoorsOpening and closing

Problems with the engine
Problem
Possible causes/consequences and
M
MSolutions The engine does not
start. The HOLD function or DISTRONIC PLUS is activated.
X Deactivate the HOLD function (Y page 232) or DISTRONIC
PLUS (Y page 222).
X Try to start the engine again (Y page 183).The engine does not
start. The starter motor
can be heard. R
There is a malfunction in the engine electronics.
R There is a malfunction in the fuel supply.
X Before attempting to start the engine again, turn the key in the
ignition back to position 0or press the Start/Stop button
repeatedly until all indicator lamps in the instrument cluster go
out.
X Try to start the engine again (Y page 183). Avoid excessively
long and frequent attempts to start the engine, as this will drain
the battery.
If the engine does not start after several attempts: X Consult a qualified specialist workshop. The engine does not
start. The starter motor
can be heard. The
reserve fuel warning
lamp is lit and the fuel
gauge display is at the
reserve level. The fuel tank is empty.
X Refuel the vehicle. The engine does not
start. You cannot hear
the starter motor. The on-board voltage is too low because the battery is too weak or
discharged.
X Jump-start the vehicle (Y page 418).
If the engine does not start despite attempts to jump-start it:
X Consult a qualified specialist workshop. The starter motor was exposed to a thermal load that was too high.
X Try to start the engine again (Y page 183).
If the engine still does not start: X Consult a qualified specialist workshop. Driving
189Driving and parking Z

Useful information
............................406
Where will I find...? ...........................406
Flat tyre ............................................. 408
Battery (vehicle) ................................ 412
Jump-starting .................................... 418
Towing away and tow-starting ........420
Electrical fuses ................................. 424 405Breakdown assistance

Work on the battery, e.g. removing or fitting,
requires specialist knowledge and the use of
special tools. Therefore, always have work on the battery carried out at a qualified specialist
workshop. G
WARNING
Work carried out incorrectly on the battery
may lead to a malfunction, e.g. a short circuit. This, in turn, may restrict the functions of the
safety-relevant systems, e.g. the lighting sys-
tem, ABS (Anti-lock Braking System) or ESP ®
(Electronic Stability Program). The operating
safety of your vehicle may then be compro-
mised. You could then lose control of the vehi-
cle, e.g.:
R when braking
R when making sudden steering movements
and/or travelling at an inappropriate
speed.
There is a risk of an accident.
In the event of a short circuit or similar situa-
tion, inform a qualified specialist workshop
immediately. Do not drive any further. You
should have all work involving the battery car- ried out at a qualified specialist workshop.
i For further information about ABS and
ESP ®
, see (Y page 74) and (Y page 80). G
WARNING
Electrostatic build-up can lead to the creation of sparks, which could ignite the highly explo-
sive gases of a battery. There is a risk of an
explosion.
Before handling the battery, touch the vehicle body to remove any existing electrostatic
build-up.
The highly flammable gas mixture is created
while the battery is charging and when jump-
starting. Always make sure that neither you nor the
battery is electrostatically charged. Electro-
static charge is created, for example:
R by wearing synthetic fibre clothing
R due to friction between clothing and the
seat
R when you pull or push the battery across
carpet or other synthetic materials
R when you rub the battery with a cloth G
WARNING
During the charging process, a battery produ- ces hydrogen gas. If a short circuit occurs or
sparks are created, the hydrogen gas can
ignite. There is a risk of an explosion.
R Make sure that the positive terminal of a
connected battery does not come into con-
tact with vehicle parts.
R Never place metal objects or tools on a bat-
tery.
R It is important that you observe the descri-
bed order of the battery terminals when
connecting and disconnecting a battery.
R When jump-starting, make sure that the
battery poles with identical polarity are
connected.
R It is particularly important to observe the
described order when connecting and dis-
connecting the jump leads.
R Never connect or disconnect the battery
terminals while the engine is running. G
WARNING
Battery acid is caustic. There is a risk of injury. Avoid contact with the skin, eyes or clothing.
Do not inhale any battery gases. Do not lean
over the battery. Keep children away from
batteries. Wash battery acid immediately with water and seek medical attention. H
Environmental note Batteries contain pollutants.
It is illegal to dispose of them
with the household rubbish.
They must be collected sep- Battery (vehicle)
413Breakdown assistance
Z

Charging the 12 V battery
G
WARNING
During charging and jump-starting, explosive
gases can escape from the battery. There is a risk of an explosion.
Particularly avoid fire, naked flames, creating
sparks and smoking. Ensure there is sufficient
ventilation while charging and jump-starting.
Do not lean over a battery. G
WARNING
Battery acid is caustic. There is a risk of injury. Avoid contact with the skin, eyes or clothing.
Do not inhale any battery gases. Do not lean
over the battery. Keep children away from
batteries. Wash battery acid immediately with water and seek medical attention. G
WARNING
A discharged battery can freeze at tempera-
tures below freezing point. When jump-start-
ing the vehicle or charging the battery, gases can escape from the battery. There is a risk of
an explosion.
Allow the frozen battery to thaw out before
charging it or jump-starting.
! Only use battery chargers with a maxi-
mum charging voltage of 14.8 V.
! Only charge the battery using the jump-
start connection point.
The jump-starting connection point is in the
engine compartment (Y page 418).
X Open the bonnet.
X Connect the battery charger to the positive
terminal and earth point in the same order
as when connecting the donor battery in
the jump-starting procedure (Y page 418).
Never charge the battery if it is still fitted to
the vehicle, unless you use a battery charger which has been tested and approved by
Mercedes-Benz. A battery charger unit spe-
cially adapted for Mercedes-Benz vehicles
and tested and approved by Mercedes-Benz is available as an accessory. This device per-
mits charging of the battery in position. Con-
tact a Mercedes-Benz Service Centre for
information and availability. Read the battery charger's operating instructions before
charging the battery.
If the indicator/warning lamps do not light up
at low temperatures, it is very likely that the
discharged battery has frozen. In this case
you may neither jump-start the vehicle nor
charge the battery. The service life of a bat-
tery that has been thawed may be reduced.
The starting characteristics may be impaired, especially at low temperatures. Have the
thawed battery checked at a qualified spe-
cialist workshop.
Hybrid vehicles: if the battery charge is suf-
ficient, the high-voltage battery can also sup-
ply the 12 V battery with energy. This only
happens if the battery charge of the 12 V bat-
tery requires this, e.g. after using electrical
consumers for an extended period with the
engine switched off. As the on-board voltage
is continuously monitored this can also be
performed when the engine is switched off.
The battery charge of the 12 V battery and the
on-board voltage are thereby kept stable for a longer period. Charging the high-voltage battery
when stationary
Only hybrid vehicles are equipped with a high-
voltage battery. G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation.
! Only charge the high-voltage battery in
the "Charging when stationary" operating
mode. Do not connect a battery charger to
the high-voltage battery. Otherwise, the 416
Battery (vehicle)Breakdown assistance