jump start MERCEDES-BENZ C-CLASS COUPE 2018 Owner's Manual

Maintenance and care......................286
Engine compartment ........................... 286
ASSYST PLUS ...................................... 290
Care ..................................................... 291
Breakdown assistance .....................299
Where will I find...? .............................. 299
Flat tire ................................................ 300
Battery (vehicle) .................................. 305
Jump-starting ....................................... 308
Towing and tow-starting ...................... 310
Fuses ...................................................3 13
Wheels and tires............................... 316
Important safety notes ........................ 316
Operation ............................................ 316
Winter operation .................................. 318
Tire pressure ....................................... 319
Loading the vehicle .............................. 326
All about wheels and tires ................... 329
Changing a wheel ................................ 335
Wheel/tire combination ......................3 40
Technical data................................... 342
Information regarding technical data ... 342
Vehicle electronics .............................. 342
Identification plates .............................3 43
Service products and filling capaci-
ties ...................................................... 344
Vehicle data ......................................... 349
Contents3

Gliding mode ................................. 139
Kickdown ....................................... 139
Manual shifting .............................. 142
Oil temperature (on-board com-
puter, Mercedes-AMG vehicles) ..... 212
Overview ........................................ 136
Permanent setting ......................... 142
Problem (malfunction) ................... 145
Pulling away ................................... 129
Starting the engine ........................ 128
Steering wheel paddle shifters ...... 142
Transmission position display
(DIRECT SELECT lever) ................... 138
Transmission positions .................. 138
Automatic transmission emer-
gency mode ....................................... 145
B
Back button ....................................... 257
Backup lamp
Display message ............................ 228
Bag hook ............................................ 270
BAS (Brake Assist System) ................. 64
Basic settings
see Settings
Battery (SmartKey)
Checking .......................................... 78
Important safety notes .................... 77
Replacing ......................................... 78
Battery (vehicle)
Charging ........................................ 307
Display message ............................ 230
Important safety notes .................. 305
Jump starting ................................. 308
Belt
see Seat belts
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 209
Display message ............................ 234
Notes/function .............................. 186
see Active Blind Spot Assist
Blower
see Climate control
Bluetooth
®
Connecting a different mobile
phone ............................................ 264 Searching for a mobile phone ........ 263
see also Digital Operator's Man-
ual .................................................. 256
Telephony ...................................... 263
Brake
Active Brake Assist with cross-
traffic function ................................. 70
Brake Assist
see BAS (Brake Assist System)
Brake assistance
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 222
Notes ............................................. 347
Brake force distribution
see EBD (electronic brake force
distribution)
Brake linings
Display message ............................ 222
Brakes
ABS .................................................. 64
Adaptive Brake Assist ...................... 66
BAS .................................................. 64
Brake fluid (notes) ......................... 347
Display message ............................ 217
EBD .................................................. 70
High-performance brake system .... 154
Hill start assist ............................... 130
HOLD function ............................... 165
Important safety notes .................. 152
Maintenance .................................. 153
Parking brake ................................ 149
Riding tips ...................................... 152
Warning lamp ................................. 246
Breakdown
Where will I find...? ........................ 299
see Flat tire
see Towing away
Brig htnes
s control (instrument
cluster lighting) ................................... 35
Buttons on the steering wheel ......... 197
C
California
Important notice for retail cus-
tomers and lessees .......................... 28
6Index

Emissions controlService and warranty information .... 28
Engine
Check Engine warning lamp .......... .250
Display message ............................ 229
ECO start/stop function ................ 130
Engine number ............................... 344
Irregular running ............................ 133
Jump-starting ................................. 308
Starting (important safety notes) ... 128
Starting problems .......................... 133
Starting the engine with the
SmartKey ....................................... 128
Starting via smartphone ................ 129
Starting with the Start/Stop but-
ton ................................................. 128
Switching off .................................. 148
Tow-starting (vehicle) ..................... 313
Engine electronics
Problem (malfunction) ................... 133
Engine jump starting
see Jump starting (engine)
Engine oil
Adding ...........................................2 88
Additives ........................................ 347
Checking the oil level ..................... 287
Checking the oil level using the
dipstick .......................................... 288
Display message ............................ 231
Filling capacity ............................... 347
General notes ................................ 346
Notes about oil grades ................... 346
Notes on oil level/consumption .... 287
Temperature (on-board computer,
Mercedes-AMG vehicles) ...............2 12
Engine oil additives
see Additives (engine oil)
Entering an address
see also Digital Operator's Man-
ual ..................................................2 56
ESC (Electronic Stability Control)
see ESP
®(Electronic Stability Program)
ESP®(Electronic Stability Pro-
gram)
AMG menu (on-board computer) ... 213
Characteristics ................................. 67
Crosswind Assist .............................7 0Deactivating/activating (button
in Mercedes-AMG vehicles) .............6
8
Deactivating/activating (note
s,
except Mercedes-AMG vehicles) ...... 68
Deactivating/activating (on-
board computer, except
Mercedes-AMG vehicles) ............... 208
Display message ............................ 217
Function/notes ................................ 67
General notes .................................. 67
Important safety information ........... 67
Trailer stabilization ........................... 70
Warning lamp ................................. 247
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 67
Exhaust
see Exhaust pipe
Exhaust check ................................... 151
Exhaust pipe
Cleaning ......................................... 296
Exterior lighting
Cleaning ......................................... 295
Setting options .............................. 108
see Lights
Exterior mirrors
Adjusting ....................................... 103
Dipping (automatic) ....................... 104
Folding in/out (automatically) ....... 104
Folding in/out (electrically) ........... 104
Out of position (troubleshooting) ... 104
Setting ........................................... 104
Storing settings (memory func-
tion) ............................................... 106
Storing the parking position .......... 105
Eyeglasses compartment ................. 267
F
Favorites
Overview ........................................ 259
Features ............................................. 272
Filler cap
see Refueling
Flat tire
Changing a wheel/mounting the
spare wheel ................................... 335
MOExtended tires .......................... 301
Preparing the vehicle ..................... 300
Index11

HeadlampsDisplay message ............................ 228
Fogging up ..................................... 111
see Automatic headlamp mode
Heating
see Climate control
High beam flasher ............................. 109
High-beam headlamps
Adaptive Highbeam Assist ............. 110
Display message ............................ 228
Replacing bulbs ............................. 113
Switching on/off ........................... 109
Hill start assist .................................. 130
HOLD function
Activating ....................................... 166
Activation conditions .....................1 65
Deactivating ................................... 166
Display message ............................ 235
Function/notes .............................1 65
General notes ................................ 165
Home address
see also Digital Operator's Man-
ual ..................................................2 56
Hood
Closing ...........................................2 87
Display message ............................ 242
Important safety notes .................. 286
Opening ......................................... 286
Horn ...................................................... 35
HUD
see Head-up display
Hydroplaning ..................................... 154
I
Ignition key
see SmartKey
Ignition lock
see Key positions
Immobilizer .......................................... 73
Indicator lamps
see Warning and indicator lamps
Indicators
see Turn signals
Insect protection on the radiator .... 287
Inspection
see ASSYST PLUS Instrument cluster
Overview .......................................... 36
Warning and indicator lamps ........... 36
Instrument cluster lighting .............. 196
Interior lighting
Automatic control .......................... 112
Control ...........................................1 12
Overview ........................................ 111
Reading lamp ................................. 111
iPod
®
see also Digital Operator's Man-
ual ..................................................2 56
J
Jack
Using ............................................. 337
Jump starting (engine) ......................308
K
Key positions
SmartKey ....................................... 126
Start/Stop button .......................... 127
KEYLESS-GO
Activating ......................................... 76
Convenience closing feature ............ 89
Deactivation ..................................... 76
Locking ............................................ 76
Removing the Start/Stop button ... 127
Start function ................................... 77
Unlocking ......................................... 76
Kickdown
Driving tips ....................................1 39
Manual gearshifting ....................... 144
Knee bag .............................................. 50
L
Lamps
see Warning and indicator lamps
Lane Change Assist
see Active Blind Spot Assist
Lane detection (automatic)
see Lane Keeping Assist
Lane Keeping Assist
Activating/deactivating ................. 189
Activating/deactivating (on-
board computer) ............................ 209
Index13

ProblemPossible causes/consequences andMSolutions
KEYLESS-GO is malfunctioning.
XLock/unlock the vehicle using the remote control function of the
SmartKey.
XHave the vehicle and SmartKey checked at a qualified specialist
workshop.
If the vehicle can also not be locked/unlocked using the remote con-
trol function:
XLock or unlock the vehicle using the mechanical key (Ypage 82).
XHave the vehicle and SmartKey checked at a qualified specialist
workshop.
The engine cannot be
started using the Smart-
Key.The on-board voltage is too low.
XSwitch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
XCheck the starter battery and charge it if necessary (Ypage 307).
or
XJump-start the vehicle (Ypage 308).
or
XConsult a qualified specialist workshop.
The engine cannot be
started using the Start/
Stop button. The Smart-
Key is in the vehicle.The vehicle is locked.
XUnlock the vehicle and try to start the vehicle again.
The SmartKey battery is discharged or nearly discharged.
XCheck the SmartKey battery (Ypage 78) and replace it if necessary
(Ypage 78).
If this does not work:
XStart your vehicle with the SmartKey in the ignition lock.
There is interference from a powerful source of radio waves.
XStart your vehicle with the SmartKey in the ignition lock.
You have lost a Smart-
Key.XHave the SmartKey deactivated at a qualified specialist workshop.
XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
You have lost the
mechanical key.XReport the loss immediately to the vehicle insurers.
XIf necessary, have the locks changed as well.
80SmartKey
Opening and closing

Problems with the engine
ProblemPossible causes/consequences andMSolutions
The engine does not
start.The HOLD function or Distance Pilot DISTRONIC is activated.
XDeactivate the HOLD function (Ypage 166) or Distance Pilot
DISTRONIC (Ypage 162).
XTry to start the engine again (Ypage 128).
The engine does not
start. The starter motor
can be heard.RThere is a malfunction in the engine electronics.
RThere is a malfunction in the fuel supply.
Before attempting to start the engine again:
XTurn the SmartKey back to position uin the ignition lock.
or
XPress the Start/Stop button repeatedly until all indicator lamps in
the instrument cluster go out.
XTry to start the engine again (Ypage 128). 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:
XConsult 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.
XRefuel 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.
XJump-start the vehicle (Ypage 308).
If the engine does not start despite attempts to jump-start it:
XConsult a qualified specialist workshop.
The starter motor was exposed to a thermal load that was too high.
XTry to start the engine again (Ypage 128).
If the engine still does not start:
XConsult a qualified specialist workshop.
Driving133
Driving and parking
Z

XTo remove the tire sealant bottle from the tire
inflation compressor, press together the lock-
ing tabs on the yellow cap.
XPull the tire sealant bottle out of the tire infla-
tion compressor.
The filler hose remains attached to the tire
sealant bottle.
XDrive to the nearest qualified specialist work-
shop and have the tire changed there.
XHave the tire sealant bottle and the filler hose
replaced as soon as possible at a qualified
specialist workshop.
XHave the tire sealant bottle replaced every
four years at a qualified specialist workshop.
Battery (vehicle)
12 V battery – important safety notes
Special tools and expert knowledge are required
when working on the battery, e.g. removal and
installation. You should therefore have all work
involving the battery carried out at a qualified
specialist workshop.
GWARNING
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, the ABS (anti-lock braking system) or the
ESP
®(Electronic Stability Program). The oper-
ating safety of your vehicle may be restricted.
You could lose control of the vehicle, for
example:
Rwhen braking
Rin the event of abrupt steering maneuvers
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. For further information about ABS and ESP
®,
see (Ypage 64) and (Ypage 67).
All vehicles except vehicles with a lithium-
ion battery:
GWARNING
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-start-
ing.
Always make sure that neither you nor the bat-
tery is electrostatically charged. A build-up of
electrostatic charge can be caused, for exam-
ple:
Rby wearing clothing made from synthetic
fibers
Rdue to friction between clothing and seats
Rif you push or pull the battery across the car-
pet or other synthetic materials
Rif you rub the battery with a cloth
GWARNING
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.
RMake sure that the positive terminal of a
connected battery does not come into con- tact with vehicle parts.
RNever place metal objects or tools on a bat-
tery.
RIt is important that you observe the descri-
bed order of the battery terminals when
connecting and disconnecting a battery.
RWhen jump-starting, make sure that the
battery poles with identical polarity are
connected.
Battery (vehicle)305
Breakdown assistance
Z

In order for the battery to achieve the maximum
possible service life, it must always be suffi-
ciently charged.
Like other batteries, the vehicle battery may
discharge over time if you do not use the vehicle.
In this case, have the battery disconnected at a
qualified specialist workshop. You can also
charge the battery with a charger recommended
by Mercedes-Benz. Contact a qualified special-
ist workshop for further information.
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 specialist
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 12 V battery
Vehicles with a lithium-ion battery:
!Only use battery chargers with a maximum
charging voltage of 14.4 V.
All vehicles except vehicles with a lithium-
ion battery:
!Only use battery chargers with a maximum
charging voltage of 14.8 V.
GWARNING
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.
GWARNING
Battery acid is caustic. There is a risk of injury.
Avoid contact with skin, eyes or clothing. Do
not inhale any battery gases. Do not lean over
the battery. Keep children away from batter-
ies. Wash away battery acid immediately with
plenty of clean water and seek medical atten-
tion.
GWARNING
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.
All vehicles:
!Only charge the battery using the jump-
starting connection point.
The jump-starting connection point is in the
engine compartment (
Ypage 308).
XOpen the hood.
XConnect the battery charger to the positive
terminal and ground point in the same order
as when connecting the donor battery in the
jump-starting procedure (
Ypage 308).
Keep away from fire and open flames. Do not
lean over a battery. 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 specially adapted for Mercedes-Benz vehi-
cles and tested and approved by Mercedes-
Benz is available as an accessory. It permits the
charging of the battery in its installed position.
Contact an authorized Mercedes-Benz Center
for further information and availability. Read the
battery charger's operating instructions before
charging the battery.
All vehicles except vehicles with a lithium-
ion battery: if the warning and indicator lamps
on the instrument cluster do not light up at low
temperatures, it is very 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 characteristics can
be impaired, particularly at low temperatures.
Have the thawed-out battery checked at a quali-
fied specialist workshop.
Vehicles with a lithium-ion battery: at low
temperatures, do not charge a battery which has
been removed using a battery charger. Allow the
battery to warm up gently first, if necessary.
Otherwise, the service life can be shortened and
the starting characteristics impaired, especially
at low temperatures.
Battery (vehicle)307
Breakdown assistance
Z

Jump-starting
For the jump-starting procedure, use only the jump-starting connection point in the engine com-
partment, consisting of a positive terminal and a ground point.
All vehicles except vehicles with a lithium-ion battery:
GWARNING
Battery acid is caustic. There is a risk of injury.
Avoid contact with skin, eyes or clothing. Do not inhale any battery gases. Do not lean over the
battery. Keep children away from batteries. Wash away battery acid immediately with plenty of
clean water and seek medical attention.
GWARNING
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 ven-
tilation while charging and jump-starting. Do not lean over a battery.
GWARNING
During the charging process, a battery produces hydrogen gas. If a short circuit occurs or sparks
are created, the hydrogen gas can ignite. There is a risk of an explosion.
RMake sure that the positive terminal of a connected battery does not come into contact with
vehicle parts.
RNever place metal objects or tools on a battery.
RIt is important that you observe the described order of the battery terminals when connecting
and disconnecting a battery.
RWhen jump-starting, make sure that the battery poles with identical polarity are connected.
RIt is particularly important to observe the described order when connecting and disconnecting
the jumper cables.
RNever connect or disconnect the battery terminals while the engine is running.
GWARNING
A discharged battery can freeze at temperatures below freezing point. When jump-starting 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.
If the warning and indicator lamps do not light up on the instrument cluster when temperatures are low, it is probably because the discharged battery has frozen. In this case, you may neither charge
the battery nor jump-start the vehicle. The service life of a thawed-out battery may be shorter. The
starting characteristics can be impaired, particularly at low temperatures. Have the thawed-out
battery checked at a qualified specialist workshop.
All vehicles:
!Avoid repeated and lengthy starting attempts. Otherwise, the catalytic converter could be
damaged by the non-combusted fuel.
308Jump-starting
Breakdown assistance

Do not start the vehicle using a rapid charging device. If your vehicle's battery is discharged, the
engine can be jump-started from another vehicle or from a second battery using jumper cables.
Observe the following points:
RThe battery is not accessible in all vehicles. If the other vehicle's battery is not accessible, jump-
start the vehicle using a second battery or a jump-starting device.
RYou may only jump-start the vehicle when the engine and exhaust system are cold.
RAll vehicles except vehicles with a lithium-ion battery: do not start the engine if the battery
is frozen. Let the battery thaw first.
RJump-starting may be performed only using batteries with a nominal voltage of 12 V.
ROnly use jumper cables which have a sufficient cross-section and insulated terminal clamps.
RIf the battery is fully discharged, leave the battery that is being used to jump-start connected for
a few minutes before attempting to start. This charges the battery slightly.
RMake sure that the two vehicles do not touch.
Make sure that:
RThe jumper cables are not damaged.
RBare parts of the terminal clamp do not come into contact with other metal parts while the jumper
cables are connected to the battery.
RThe jumper cables cannot come into contact with parts that can move when the engine is running,
such as the V-belt pulley or the fan.
XSecure the vehicle by applying the electric parking brake.
XShift the transmission to position j.
XMake sure that the ignition is switched off. All indicator lamps in the instrument cluster must be
off. When using the SmartKey, turn the SmartKey to position uin the ignition lock and remove it
(
Ypage 126).
XSwitch off all electrical consumers, e.g. rear window defroster, lighting, etc.
XOpen the hood.
Position number Cidentifies the charged battery of the other vehicle or an equivalent jump-starting
device.
XLift up panel B.
XSlide coverAof positive terminal :in the direction of the arrow.
Jump-starting309
Breakdown assistance
Z