2018 MERCEDES-BENZ C-CLASS COUPE heating

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

SD memory cardsee also Digital Operator's Man-
ual .................................................. 256
Search & Send
see also Digital Operator's Man-
ual .................................................. 256
Seat
Correct driver's seat position ........... 95
Seat belts
Adjusting the driver's and front-
passenger seat belt .........................4 8
Cleaning ........................................ .297
Correct usage .................................. 46
Fastening ......................................... 47
Important safety guidelines ............. 45
Introduction ..................................... 44
Releasing ......................................... 48
Warning lamp ................................. 245
Warning lamp (function) ................... 48
Seat function
see Seat
Seats
Adjusting (AMG Performance
Seat) ................................................ 99
Adjusting (electrically) ..................... 97
Adjusting the 4-way lumbar sup-
port ..................................................9 9
Adjusting the head restraint ............ 97
Calling up a stored setting (mem-
ory function) .................................. 106
Cleaning the cover ......................... 297
Folding the backrest (rear com-
partment) forwards/back .............. 268
Folding the backrests forward/
back ................................................. 98
Important safety notes .................... 95
Seat backrest display message ..... 242
Seat heating .................................. 100
Seat heating problem .................... 101
Seat ventilation .............................. 100
Seat ventilation problem ................ 101
Storing settings (memory func-
tion) ............................................... 106
Securing a load
see Securing cargo
Securing cargo .................................. 270
Selecting a gear
see Automatic transmission Selector le
ver
C
leaning ......................................... 297
see Automatic transmission
Sensors (cleaning instructions) ....... 295
Service center
see Qualified specialist workshop
Service Center
see Qualified specialist workshop
Service menu (on-board com-
puter) .................................................. 207
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 347
Coolant (engine) ............................ 347
Engine oil ....................................... 346
Fuel ................................................ 344
Important safety notes .................. 344
Refrigerant (air-conditioning sys-
tem) ............................................... 348
Washer fluid ................................... 348
Setting the date/time format
see also Digital Operator's Man-
ual .................................................. 256
Setting the language
see also Digital Operator's Man-
ual .................................................. 256
Setting the time
see also Digital Operator's Man-
ual .................................................. 256
Settings
Factory (on-board computer) ......... 211
On-board computer ....................... 207
SETUP (on-board computer,
Mercedes-AMG vehicles) .................. 213
Side impact air bag ............................. 50
Side marker lamp (display mes-
sage) ................................................... 228
Side windows
Cleaning ......................................... 294
Convenience closing feature ............ 89
Convenience opening feature .......... 88
Important safety information ........... 87
Opening/closing .............................. 88
Problem (malfunction) ..................... 90
Resetting ......................................... 89
Reversing feature ............................. 87
Index19

SIRIUS servicessee also Digital Operator's Man-
ual .................................................. 256
Sliding sunroof
Important safety notes .................... 90
Problem (malfunction) ..................... 93
see Panorama roof with power
tilt/sliding panel
SmartKey
Changing the battery ....................... 78
Changing the programming .............7 7
Checking the battery ...................... .78
Convenience closing feature ............ 89
Convenience opening feature .......... 88
Dis play message ............................ 243
Door central locking/unlocking ...... .75
Important safety notes .................... 75
KEYLESS-GO start function .............. 77
Loss .................................................7 9
Mechanical key ................................ 77
Overview .......................................... 75
Positions (ignition lock) ................. 126
Problem (malfunction) ..................... 79
Starting the engine ........................ 128
Smartphone
Starting the engine ........................ 129
SMS
see also Digital Operator's Man-
ual .................................................. 256
Snow chains ...................................... 319
Socket (12 V)
Center console .............................. 275
General notes ................................ 274
Rear compartment .........................2 75
Sound
Switching on/off ........................... 257
Special seat belt retractor .................. 59
Specialist workshop ............................ 31
Speed, controlling
see Cruise control
Spe

edometer
Activating/deactivating the addi-
tional speedometer ........................ 211
Digital ............................................ 201
In the Instrument cluster ................. 36
Segments ...................................... 196
Selecting the display unit ...............2 11SPORT handling mode
Deactivating/activating
(Mercedes-AMG vehicles) ................ 68
Warning lamp ................................. 249
Sports exhaust system
AMG ............................................... 132
Standing lamps
Display message ............................ 228
Switching on/off ........................... 109
Start button
Display message ............................ 244
Start/Stop button
Key positions ................................. 127
Starting the engine ........................ 128
Start/stop function
see ECO start/stop function
Starting (engine) ................................ 128
Starting the engine
see Starting (engine)
STEER CONTROL .................................. 73
Steering
Display message ............................ 242
Warning lamps ............................... 255
Steering assistant STEER CON-
TROL
see STEER CONTROL
Steering Pilot
Display message ............................ 237
with Distance Pilot DISTRONIC ...... 163
Steering wheel
Adjusting (electrically) ................... 101
Button overview ............................... 37
Buttons (on-board computer) ......... 197
Cleaning ......................................... 297
EASY ENTRY/EXIT feature ............. 102
Important safety notes .................. 101
Storing settings (memory func-
tion) ............................................... 106
Steering wheel heating
Problem (malfunction) ................... 102
Switching on/off ........................... 101
Steering wheel paddle shifters ........142
Stopwatch (RACETIMER) ................... 214
Stowage areas ................................... 266
Stowage compartments
Armrest (under) .............................2 67
Center console .............................. 267
20Index

Door controlpanel
FunctionPage
:r 45=
Stores settings for the seat,
exterior mirrors and steering
column
106
;Adjusts the seats electrically97
=c Seat heating100
?sSeat ventilation100
AOpens the door81
B%&Unlocks/locks
the vehicle81
FunctionPage
CWOpens/closes the left
side window87
D7Zª\
Adjusts and folds the exterior
mirrors out/in electrically
103
EW Opens/closes the right
side window87
Fp Opens/closes the
trunk lid86
42Door control panel
At a glance

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

Always drive with the head restraints instal-
led. Before driving off, make sure for every
vehicle occupant that the center of the head
restraint supports the back of the head at
about eye level.
Do not rotate the head restraints of the front and
rear seats. Otherwise, you cannot adjust the
height and angle of the head restraints cor-
rectly.
Using the fore-and-aft adjustment, adjust the
head restraint so that it is as close as possible to
your head.
GWARNING
If the driver's seat is not engaged, it could
move unexpectedly while the vehicle is in
motion. This could cause you to lose control of the vehicle. There is a risk of an accident.
Always make sure that the driver's seat is
engaged before starting the vehicle.
GWARNING
You could lose control of your vehicle if you do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the engine.
GWARNING
If you adjust the seat height carelessly, you or
other vehicle occupants could be trapped and
thereby injured. Children in particular could
accidentally press the electrical seat adjust-
ment buttons and become trapped. There is a
risk of injury.
While moving the seats, make sure that your
hands or other body parts do not get under the
lever assembly of the seat adjustment sys-
tem.
GWARNING
The seat belt does not offer the intended level of protection if you have not moved the back-
rest to an almost vertical position. When brak-
ing or in the event of an accident, you could
slide underneath the seat belt and sustain
abdomen or neck injuries, for example. This
poses an increased risk of injury or even fatal injury.
Adjust the seat properly before beginning
your journey. Always ensure that the backrest
is in an almost vertical position and that the
shoulder section of your seat belt is routed
across the center of your shoulder.
!To avoid damage to the seats and the seat
heating, observe the following information:
Rkeep liquids from spilling on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
Rif the seat covers are damp or wet, do not
switch on the seat heating. The seat heat-
ing should also not be used to dry the seats.
Rclean the seat covers as recommended;
see "Interior care".
Rdo not transport heavy loads on the seats.
Do not place sharp objects on the seat
cushions, e.g. knives, nails or tools. The
seats should only be occupied by passen-
gers, if possible.
Rwhen the seat heating is in operation, do
not cover the seats with insulating materi-
als, e.g. blankets, coats, bags, seat covers,
child seats or booster seats.
!Make sure that there are no objects in the
footwell under or behind the seats when mov-
ing the seats back. There is a risk that the
seats and/or the objects could be damaged.
iThe rear-compartment head restraints can
be removed (Ypage 98).
Vehicles without the through-loading feature:
the head restraints cannot be removed from
the rear compartment seats.
For more information, contact a qualified spe-
cialist workshop.
iRelated topic:
RRear bench seat through-loading feature
(Ypage 268)
96Seats
Seats, steering wheel and mirrors

Switching the seat heating on/off
Switching on/off
GWARNING
Repeatedly switching on the seat heating can
cause the seat cushion and backrest pads to
become very hot. The health of persons with
limited temperature sensitivity or a limited
ability to react to high temperatures may be
affected or they may even suffer burn-like
injuries. There is a risk of injury.
Therefore, do not switch the seat heating on
repeatedly.
The three red indicator lamps in the button indi-
cate the heating level you have selected.
The system automatically switches down from
level 3to level 2after approximately eight
minutes.
The system automatically switches down from
level 2to level 1after approximately ten
minutes.
The system automatically switches off approx-
imately 20 minutes after it is set to level 1.
XTurn the SmartKey to position1or2 in the
ignition lock (Ypage 126).
XTo switch on: press button:repeatedly
until the desired heating level is set.
XTo switch off: press button:repeatedly
until all the indicator lamps go out.
iIf the battery voltage is too low, the seat
heating may switch off.
iIf drive program Eis selected, the power of
the seat heating is reduced.
Switching the seat ventilation on/off
Switching on/off
The blue indicator lamps in the button indicate
the ventilation level you have selected.
XTurn the SmartKey to position 1or2 in the
ignition lock (Ypage 126).
XTo switch on: press button:repeatedly
until the desired ventilation level is set.
XTo switch off: press button:repeatedly
until all the indicator lamps go out.
iIf the battery voltage is too low, the seat
ventilation may switch off.
iYou can open the side windows and the slid-
ing sunroof using the "Convenience opening"
feature (
Ypage 88). The seat ventilation of
the driver's seat automatically switches to the
highest level.
iWhen the vehicle is stationary, the fan
speed can be reduced automatically. This
reduces the noises of the seat ventilation.
100Seats
Seats, steering wheel and mirrors

Problems with the seat heating / seat ventilation
ProblemPossible causes/consequences andMSolutions
The seat heating or seat
ventilation has switched
off prematurely or can-
not be switched on.The on-board voltage is too low because too many electrical consum-
ers are switched on.
XSwitch off electrical consumers that you do not need, such as the
rear window defroster or interior lighting.
Once the battery is sufficiently charged, the seat heating or seat
ventilation can be switched back on manually.
Steering wheel
Important safety notes
GWARNING
You could lose control of your vehicle if you do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the engine.
GWARNING
Children could injure themselves if they
adjust the steering wheel. There is a risk of
injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The electrically adjustable steering wheel can
still be adjusted when there is no key in the igni-
tion lock.
Adjusts the steering wheel electri-
cally
:Adjusts the steering wheel height
;Adjusts the steering wheel position (fore-
and-aft adjustment)
iFurther related subjects:
REASY-ENTRY/EXIT feature (Ypage 102)
RStoring settings (Ypage 106)
Steering wheel heating
Switching on/off
Steering wheel101
Seats, steering wheel and mirrors
Z