jump start MERCEDES-BENZ C-Class SEDAN 2015 W205 Owner's Manual

Armrest
Stowage compartment .................. 300
Ashtray .............................................. .309
Assistance display (on-board com-
puter) ................................................. .243
Assistance menu (on-board com-
puter) ................................................. .244
ASSYST PLUS Displaying a service message ....... .329
Hiding a service message .............. 328
Notes ............................................. 328
Resetting the service interval dis-
play ................................................ 329
Service message ............................ 328
Special service requirements ......... 329
ATA (Anti-Theft Alarm system)
Activating/deactivating ................... 76
Function .......................................... .76
Switching off the alarm .................... 76
ATTENTION ASSIST
Activating/deactivating ................. 246
Display message ............................ 271
Function/note s............................. 216
Authorized Mercedes-Benz Center
see Qualified specialist workshop
Authorized workshop
see Qualified specialist workshop
AUTO lights
Display message ............................ 266
see Lights
Automatic car wash (care) ............... 330
Automatic engine start (ECO start/
stop function) .................................... 161
Automatic engine switch-off (ECO
start/stop function) .......................... 161
Automatic headlamp mode .............. 124
Automatic transmission Accelerator pedal position ............. 167
AGILITY SELECT switch .................. 167
Changing gear ............................... 167
DIRECT SELECT lever ..................... 164
Display message ............................ 280
Drive program ................................ 168
Drive program display .................... 166
Driving tips .................................... 167
Emergency running mode .............. 171
Engaging drive position .................. 166 Engaging neutral ............................ 165
Engaging park position automati-
cally ............................................... 165
Engaging reverse gear ................... 165
Engaging the park position ............ 164
Kickdown ....................................... 167
Manual shifting .............................. 169
Overview ........................................ 164
Problem (malfunction) ................... 171
Pulling away ................................... 160
Starting the engine ........................ 159
Steering wheel paddle shifters ...... 169
Transmission position display
(DIRECT SELECT lever) ................... 166
Transmission positions .................. 166
Automatic transmission emer-
gency mode ....................................... 171 B
Backup lamp Changing bulb s.............................. 132
Bag hook ............................................ 304
BAS (Brake Assist System) ................. 67
BAS PLUS with Cross-Traffic Assist
(Brake Assist PLUS with Cross-
Traffic Assist)
Function/note s................................ 67
Important safety notes .................... 67
Battery (SmartKey)
Checking .......................................... 84
Important safety notes .................... 83
Replacing ......................................... 84
Battery (vehicle)
Charging ........................................ 347
Display message ............................ 268
Important safety notes .................. 345
Jump starting ................................. 349
Belt
see Seat belts
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 246
Display message ............................ 273
Notes/function .............................. 217
see Active Blind Spot Assist
Box (trunk) ......................................... 304 Index
5

Emissions control
Service and warranty information .... 23
Engine
Check Engine warning lamp .......... .291
Display message ............................ 267
ECO start/stop function ................ 161
Engine number ............................... 397
Irregular running ............................ 163
Jump-starting ................................. 349
Starting problems .......................... 163
Starting the engine with the
SmartKey ....................................... 159
Starting with the Start/Stop but-
ton ................................................. 159
Switching off .................................. 175
Tow-starting (vehicle) ..................... 354
Engine electronics
Problem (malfunction) ................... 163
Engine oil
Adding .......................................... .326
Additives ........................................ 400
Checking the oil level ..................... 325
Checking the oil level using the
dipstick .......................................... 325
Display message ............................ 269
Filling capacity ............................... 400
Notes about oil grades ................... 400
Notes on oil level/consumption .... 325
Viscosity ........................................ 400
ESP ®
(Electronic Stability Pro-
gram) Characteristics ................................. 72
Deactivating/activating ................... 72
Display message ............................ 251
ETS/4ETS ........................................ 72
Function/notes ................................ 71
General notes .................................. 71
Important safety information ........... 72
Warning lamp ................................. 288
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 72
Exhaust see Exhaust pipe
Exhaust check ................................... 178
Exhaust pipe Cleaning ......................................... 335 Exterior lighting
Cleaning ......................................... 333
see Lights
Exterior mirrors
Adjusting ....................................... 118
Dipping (automatic) ....................... 119
Folding in/out (automatically) ....... 118
Folding in/out (electrically) ........... 118
Out of position (troubleshooting) ... 119
Setting ........................................... 118
Storing settings (memory func-
tion) ............................................... 121
Storing the parking position .......... 119
Eyeglasses compartment ................. 299 F
Features ............................................. 306
Filler cap see Fuel filler flap
Flat tire
Changing a wheel/mounting the
spare whee l................................... 381
MOExtended tire s.......................... 341
Preparing the vehicle ..................... 341
TIREFIT kit ...................................... 342
Floormats ........................................... 322
Fording On flooded roads ........................... 182
Fuel
Additives ........................................ 399
Consumption information .............. 399
Consumption statistics .................. 237
Displaying the current consump-
tion ................................................ 236
Displaying the range ...................... 236
Driving tip s.................................... 178
Fuel gaug e....................................... 33
Grade (gasoline )............................ 398
Important safety notes .................. 398
Problem (malfunction) ................... 174
Refueling ........................................ 171
Tank content/reserve fue l............. 398
Fuel filler flap
Opening ......................................... 172
Fuel level
Calling up the range (on-board
computer) ...................................... 236 10
Index

Overview ........................................1
29
Reading lamp ................................. 129 J
Jack Using ............................................. 382
Jump starting (engine) ......................349 K
KEYLESS-GO Convenience closing feature ............ 99
Deactivation ..................................... 81
Locking ............................................ 81
Unlocking ......................................... 81
Key positions
SmartKey ....................................... 157
Start/Stop button .......................... 157
Kickdown
Driving tips ................................... .167
Knee bag .............................................. 50 L
Lamps see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 246
Display message ............................ 272
Function/informatio n.................... 219
see Active Lane Keeping Assist
Lane Tracking package ..................... 217
LATCH-type (ISOFIX) child seat
anchors ................................................ 62
License plate lamp (display mes-
sage) ................................................... 265
Light function, active Display message ............................ 266
Lights
Adaptive Highbeam Assist ............. 127
Automatic headlamp mod e............ 124
Cornering light function ................. 127
Driving abroad ............................... 124
Fogged up headlamp s.................... 128
Hazard warning lamps ................... 127
High beam flashe r.......................... 126 High-beam headlamp
s................... 126
Light switch ................................... 124
Low-beam headlamp s.................... 125
Parking lamps ................................ 126
Rear fog lamp ................................ 125
Setting exterior lighting ................. 124
Standing lamps .............................. 126
Switching the daytime running
lamps on/off (on-board com-
puter) ............................................. 247
Turn signals ................................... 126
see Interior lighting
see Replacing bulbs
Light sensor (display message) ....... 266
Loading guidelines ............................ 298
Locking see Central locking
Locking (doors)
Automatic ........................................ 88
Emergency locking ........................... 89
From inside (central locking but-
ton) .................................................. 87
Locking centrally
see Central locking
Low-beam headlamps
Changing bulb s.............................. 131
Display message ............................ 264
Setting for driving abroad (sym-
metrical) ........................................ 124
Switching on/of f........................... 125
Lumbar support
Adjusting the 4-way lumbar sup-
port ................................................ 112 M
M+S tires ............................................ 360
Maintenance see ASSYST PLUS
Malfunction message
see Display messages
Matte finish (cleaning instruc-
tions) .................................................. 332
mbrace Call priority .................................... 314
Display message ............................ 258
Downloading destinations
(COMAND) ..................................... 315 12
Index

Problem
Possible causes/consequences and
0050
0050Solutions The engine cannot be
started using the
SmartKey. 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 347).
or
X Jump-start the vehicle (Y page 349).
or
X Consult a qualified specialist workshop. The engine cannot be
started using the Start/
Stop button. The
SmartKey is in the vehi-
cle. The vehicle is locked.
X Unlock the vehicle and try to start the vehicle again. The SmartKey battery is discharged or nearly discharged.
X Check the SmartKey battery (Y page 84) and replace it if nec-
essary (Y page 84).
If this does not work:
X Start your vehicle with the SmartKey in the ignition lock. There is interference from a powerful source of radio waves.
X Start your vehicle with the SmartKey in the ignition lock. You have lost a Smart-
Key. X
Have the SmartKey deactivated at a qualified specialist work-
shop.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. You have lost the
mechanical key. X
Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well. 86
SmartKeyOpening and closing

Problems with the engine
Problem
Possible causes/consequences and
0050
0050Solutions 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 SmartKey
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 159). Avoid excessively
long and frequent attempts to start the engine as these will drain
the battery.
If the engine does not start after several attempts:
X Consult a qualified specialist workshop. 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 349).
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 159).
If the engine still does not start: X Consult a qualified specialist workshop. The engine is not run-
ning smoothly and is
misfiring. There is a malfunction in the engine electronics or in a mechanical
component of the engine management system.
X Only depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic con-
verter and damage it.
X Have the cause rectified immediately at a qualified specialist
workshop. The coolant tempera-
ture gauge shows a
value above 248 ‡
(120 †). The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.
X Stop as soon as possible and allow the engine and the coolant to
cool down.
X Check the coolant level (Y page 327). Observe the warning
notes as you do so and add coolant if necessary. Driving
163Driving and parking Z

Useful information
............................340
Where will I find...? ...........................340
Flat tire .............................................. 341
Battery (vehicle) ................................ 345
Jump-starting .................................... 349
Towing and tow-starting ..................351
Fuses .................................................. 354 339Roadside Assistance

side B-pillar or the tire pressure table in the
fuel filler flap for values.
X To increase the tire pressure: switch on
the tire inflation compressor. X
To reduce the tire pressure: depress
pressure release button 006Dnext to pres-
sure gauge 006E.
X When the tire pressure is correct, unscrew
the filler hose from the valve of the sealed
tire.
X Screw the valve cap onto the tire valve of
the sealed tire.
X Pull the tire sealant bottle out of the tire
inflation compressor.
The filler hose remains attached to the tire
sealant bottle.
X Stow the tire sealant bottle and the tire
inflation compressor.
X Drive to the nearest qualified specialist
workshop and have the tire changed there.
X Have the tire sealant bottle replaced as
soon as possible at a qualified specialist
workshop.
X Have the tire sealant bottle replaced every
four years at a qualified specialist work-
shop. Battery (vehicle)
Important safety notes
Special tools and expert knowledge are
required when working on the battery, e.g.
removal and installing. You should therefore have all work involving the battery carried out
at a qualified specialist workshop. G
WARNING
Work carried out incorrectly on the battery
can lead, for example, to a short circuit and
thus damage the vehicle electronics. This can lead to function restrictions applying to
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 be restricted. You
could lose control of the vehicle, for example:
R braking
R in the event of abrupt steering maneuver
and/or when the vehicle's speed is not
adapted to the road conditions
There is a risk of an accident.
In the event of a short circuit or a similar inci- dent, contact 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 66) and (Y page 71). 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 forms when
charging the battery as well as when jump-
starting.
Always make sure that neither you nor the
battery is electrostatically charged. A build-
up of electrostatic charge can be caused, for
example:
R by wearing clothing made from synthetic
fibers
R due to friction between clothing and seats Battery (vehicle)
345Roadside Assistance Z

R
if you push or pull the battery across the
carpet or other synthetic materials
R if you wipe 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 jumper cables.
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 dangerous
substances. It is against the
law to dispose of them with
the household rubbish. They
must be collected separately
and recycled to protect the
environment. Dispose of batteries in an
environmentally friendly
manner. Take discharged
batteries to a qualified spe- cialist workshop or a special
collection point for used bat-
teries.
! Have the battery checked regularly at a
qualified specialist workshop.
Observe the service intervals in the Main-
tenance Booklet or contact a qualified spe-
cialist workshop for more information.
! You should have all work involving the
battery carried out at a qualified specialist
workshop. In the exceptional case that it is
necessary for you to disconnect the battery yourself, make sure that:
R secure the vehicle to prevent it from roll-
ing away.
R you switch off the engine and remove the
SmartKey. Make sure the ignition is
switched off. Check that all the indicator lamps in the instrument cluster are off.
Otherwise, electronic components, such
as the alternator, may be damaged.
R you first remove the negative terminal
clamp and then the positive terminal
clamp. Never swap the terminal clamps.
Otherwise, the vehicle's electronic sys-
tem may be damaged.
R the transmission is locked in position P
after disconnecting the battery. The vehi-
cle is secured against rolling away. You
can then no longer move the vehicle.
The battery and the cover of the positive
terminal clamp must be installed securely
during operation.
Comply with safety precautions and take pro-
tective measures when handling batteries. Risk of explosion.
Fire, open flames and smoking are
prohibited when handling the bat-
tery. Avoid creating sparks. 346
Battery (vehicle)Roadside Assistance

Battery acid is caustic. Avoid con-
tact with skin, eyes or clothing.
Wear suitable protective clothing,
especially gloves, apron and face-
guard.
Rinse any acid spills immediately
with clear water. Contact a physi-
cian if necessary. Wear eye protection.
Keep children away.
Observe this Operator's Manual.
For safety reasons, Mercedes-Benz recom-
mends that you only use batteries which have been tested and approved for your vehicle by
Mercedes-Benz. These batteries provide
increased impact protection to prevent vehi-
cle occupants from suffering acid burns
should the battery be damaged in the event of
an accident.
In order for the battery to achieve the maxi-
mum possible service life, it must always be
sufficiently charged.
The vehicle battery, like other batteries, can
discharge over time if you do not use the
vehicle. In this case, have the battery discon- nected at a qualified specialist workshop. You
can also charge the battery with a charger
recommended by Mercedes-Benz. Contact a
qualified specialist workshop for further infor- mation.
Have the battery condition of charge checked
more frequently if you use the vehicle mainly
for short trips or if you leave it standing idle
for a lengthy period. Consult a qualified spe-
cialist workshop if you wish to leave your
vehicle parked for a long period of time.
Remove the SmartKey if you park the vehicle and do not require any electrical consumers. The vehicle will then use very little energy,
thus conserving battery power. Charging the 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, open 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-
starting connection point.
The jump-starting connection point is in the
engine compartment (Y page 349).
X Open the hood.
X Connect the battery charger to the positive
terminal and ground point in the same
order as when connecting the donor bat-
tery in the jump-starting procedure
(Y page 349). Battery (vehicle)
347Roadside Assistance Z

Never charge the battery if it is still installed in
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. It permits the
charging of the battery in its installed posi-
tion. Contact an authorized Mercedes-Benz
Center for further information and availabil-
ity. Read the battery charger's operating
instructions before charging the battery.
If, at low temperatures, the indicator lamps/
warning lamps in the instrument cluster do
not light up, it is highly likely that the dis-
charged battery has frozen. In this case you
may neither jump-start the vehicle nor charge the battery. The service life of a thawed-out
battery may be shorter. The starting charac-
teristics can be impaired, particularly at low
temperatures. Have the thawed-out battery
checked at a qualified specialist workshop. 348
Battery (vehicle)Roadside Assistance