2018 MERCEDES-BENZ C CLASS brake light

1, 2, 3 ...
4ETS (Electronic Traction System)see ETS/4ETS (Electronic Trac-
tion System)
4MATIC (permanent four-wheel
drive) .................................................. 184
12 V socket
see Socket (12 V)
360° camera
Cleaning .........................................3 13
Display in the multimedia system .. 196
Function/notes .............................1 94
A
ABS (Anti-lock Braking System)
Display message ............................ 231
Function/notes ................................ 66
Warning lamp ................................. 261
Acceleration
see Kickdown
Accident
Automatic measures after an acci-
dent ................................................. 59
Accident warning
see Driving safety system
Activating media mode
General notes ................................ 279
Activating/deactivating cooling
with air dehumidification ................. 127
Active Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 223
Display message ............................ 248
Function/notes .............................2 04
Active Brake Assist
Activating or deactivating .............. 223
Display message ............................ 236
Function/notes ................................ 67
Active Brake Assist with cross-
traffic function
Activating or deactivating .............. 223
Display message ............................ 237
Function/notes ................................ 73
Important safety notes .................... 73
Warning lamp ................................. 267 Active Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 223
Display message ............................ 248
Function/information .................... 207
Active light function
Display message ............................ 242
Active Service System PLUS
see ASSYST PLUS
ADAPTIVE BRAKE ................................. 73
Adaptive Brake Assist
Function/notes ................................ 68
Adaptive Damping System
Function/notes ............................. 183
Adaptive Damping System with
continuous damping adjustment
(ADS PLUS) ........................................ 182
Adaptive Highbeam Assist
Display message ............................ 242
Function/notes ............................. 115
Switching on/off ........................... 116
Additional speedometer ................... 225
Additives (engine oil) ........................ 365
Address book
see also Digital Operator's Man-
ual .................................................. 270
A

djusting the volume
Multimedia system ........................ 271
After-sales service center
see ASSYST PLUS
Air bags
Deployment ..................................... 56
Display message ............................ 240
Front air bag (driver, front
passenger) ....................................... 50
Important safety notes .................... 49
Introduction ..................................... 49
Knee bag .......................................... 51
Occupant Classification System
(OCS) ............................................... 52
PASSENGER AIR BAG indicator
lamps ............................................... 45
Side impact air bag .......................... 51
Window curtain air bag .................... 51
Air filter (display message) .............. 246
Air vents
Important safety notes .................. 133
4Index

Storing and maintaining current
speed ............................................. 170
Storing the current speed or call-
ing up the last stored speed .......... 170
Cup holder
Center console .............................. 289
Important safety notes .................. 289
Rear compartment ......................... 289
Customer Assistance Center
(CAC) ..................................................... 32
Customer Relations Department ....... 32
D
Dashboard
see Instrument cluster
Dashboard lighting
see Instrument cluster lighting
Data
see Technical data
Data carrier
Selecting ........................................ 219
Daytime running lamp mode
see Daytime running lamps
Daytime running lamps
Display message ............................ 242
Function/notes ............................. 113
Switching on/off (on-board com-
puter) ............................................. 225
DEF
Adding ........................................... 158
Display message ............................ 246
Displaying level and range ............. 221
Filling capacity ............................... 364
Important safety notes .................. 364
Low outside temperatures ............. 364
Purity ............................................. 364
DEF
®
Additives ........................................ 364
Diagnostics connection ...................... 32
Diesel .................................................. 363
Digital Operator's Manual
Help ................................................. 27
Introduction ..................................... 27
Digital speedometer ......................... 215
DIRECT SELECT lever
Automatic transmission ................. 146 Display
see Display messages
see Warning and indicator lamps
Display messages
ASSYST PLUS ................................ 307
Calling up (on-board computer) ..... 230
Driving systems ............................. 247
Engine ............................................ 243
General notes ................................ 229
Hiding (on-board computer) ........... 229
Introduction ................................... 229
Lights ............................................. 242
Safety systems .............................. 231
SmartKey ....................................... 257
Tires ............................................... 252
Vehicle ........................................... 254
Distance control
see Driving system
Distance Pilot DISTRONIC
Activating ....................................... 173
Activation conditions ..................... 173
Cruise control lever ....................... 173
Display Message ............................ 249
Displays in the instrument cluster .. 175
Driving tips .................................... 177
Driving with Distance Pilot
DISTRONIC .................................... 174
Function/notes ............................. 171
Important safety notes .................. 172
Setting a speed .............................. 175
Setting the spe cifie
d minimum
distance ......................................... 175
Stopping ........................................ 174
Switching off .................................. 176
with Steering Pilot ......................... 177
Distance recorder ............................. 214
Distance warning (warning lamp) .... 267
Distance warning function
Function/notes ................................ 68
Distance warning system
see Active Brake Assist
Doors
Automatic locking (switch) ............... 85
Central locking/unlocking
(SmartKey) ....................................... 78
Control panel ................................... 43
Display message ............................ 256
Emergency locking ........................... 85
Index9

Synchronizing the rolling code ....... 301
Gear indicator (on-board com-
puter, Mercedes-AMG vehicles) ....... 226
Genuine parts ...................................... 28
Glove box ........................................... 281
Google™ Local Search
see also Digital Operator's Man-
ual .................................................. 270
H
Handbrakesee Parking brake
Handling control system
see ESP
®(Electronic Stability Program)
HANDS-FREE ACCESS .......................... 88
Handwriting recognition
Switching text reader function
on/off ............................................ 273
Touchpad ....................................... 272
Hazard warning lamps ...................... 115
Head restraints
Adjusting (electrically) ................... 103
Adjusting (manually) ...................... 103
Adjusting (rear) .............................. 103
Adjusting the fore-and-aft posi-
tion manually ................................. 103
General notes ................................ 102
Important safety notes .................. 102
Installing/removing (rear) .............. 103
Head-up display
Adjusting the brightness ................ 224
Displays and operating .................. 213
Function/notes ............................. 213
Important safety notes .................. 213
Selecting displays .......................... 224
Setting the position ....................... 224
Storing settings (memory func-
tion) ............................................... 111
Switching on or off ......................... 213
Headlamps
Display message ............................ 242
Fogging up ..................................... 116
see Automatic headlamp mode
Heating
see Climate control
High beam flasher ............................. 114 High-beam headlamps
Adaptive Highbeam Assist ............. 115
Display message ............................ 242
Replacing bulbs ............................. 118
Switching on/off ........................... 114
Hill start assist .................................. 140
HOLD function
Activating ....................................... 180
Activation conditions ..................... 179
Deactivating ................................... 180
Display message ............................ 249
Function/notes ............................. 179
General notes ................................ 179
Home address
see also Digital Operator's Man-
ual .................................................. 270
Hood
Closing ........................................... 304
Display message ............................ 256
Important safety notes .................. 303
Opening ......................................... 303
Horn ...................................................... 36
HUD
see Head-up display
Hydroplaning ..................................... 168
I
Ignition key
see SmartKey
Ignition lock
see Key positions
Immobilizer .......................................... 76
Indicator lamp
Replacing bulbs (rear) .................... 119
Indicator lamps
see Warning and indicator lamps
Indicators
see Turn signals
Insect protection on the radiator .... 304
Inspection
see ASSYST PLUS
Instrument cluster
Overview .......................................... 37
Warning and indicator lamps ........... 37
Instrument cluster lighting .............. 210
Interior lighting
Automatic control .......................... 117
Index13

The following text is reproduced as required of
all manufacturers under Title 49, Code of U.S.
Federal Regulations, Part 575 pursuant to the
National Traffic and Motor Vehicle Safety Act of
1966.
If you believe that your vehicle has a defect
which could cause a crash or could cause injury
or death, you should immediately inform the
National Highway Traffic Safety Administration
(NHTSA) in addition to notifying Mercedes-Benz USA, LLC.
If NHTSA receives similar complaints, it may
open an investigation, and if it finds that a safety
defect exists in a group of vehicles, it may order
a recall and remedy campaign. However, NHTSA
cannot become involved in individual problems
between you, your dealer, or Mercedes-Benz
USA, LLC.
To contact NHTSA, you may call the Vehicle
Safety Hotline toll-free at 1-888-327-4236
(TTY: 1-800-424-9153); go tohttp://
www.safercar.gov; or write to: Administrator,
NHTSA, 400 Seventh Street, SW., Washington,
DC 20590.
You can also obtain other information about
motor vehicle safety from
http://www.safercar.gov
Limited Warranty
!
Follow the instructions in this manual about
the proper operation of your vehicle as well as
about possible vehicle damage. Damage to
your vehicle that arises from culpable contra-
ventions against these instructions is not cov-
ered either by the Mercedes-Benz Limited
Warranty or by the New or Used-Vehicle War-
ranty.
QR codes for the rescue card
The QR codes are secured in the fuel filler flap
and on the opposite side on the B-pillar. In the
event of an accident, rescue services can use
the QR code to quickly find the appropriate res-
cue card for your vehicle. The current rescue
card contains the most important information
about your vehicle in a compact form, e.g. the
routing of the electric cables.
You can find more information under
www.mercedes-benz.de/qr-code.
Data stored in the vehicle
Data storage
A wide range of electronic components in your
vehicle contain data memories.
These data memories temporarily or perma-
nently store technical information about:
Rthe vehicle's operating state
Rincidents
Rmalfunctions
In general, this technical information docu-
ments the state of a component, a module, a
system or the surroundings.
These include, for example:
Roperating conditions of system components,
e.g. fluid levels
Rthe vehicle's status messages and those of its
individual components, e.g. number of wheel
revolutions/speed, deceleration in move-
ment, lateral acceleration, accelerator pedal
position
Rmalfunctions and defects in important system
components, e.g. lights, brakes
Rvehicle reactions and operating conditions in
special driving situations, e.g. air bag deploy-
ment, intervention of stability control sys-
tems
Rambient conditions, e.g. outside temperature
This data is of an exclusively technical nature
and can be used to:
Rassist in recognizing and rectifying malfunc-
tions and defects
Ranalyze vehicle functions, e.g. after an acci-
dent
Roptimize vehicle functions
The data cannot be used to trace the vehicle's
movements.
When your vehicle is serviced, technical infor-
mation can be read from the event data memory
and malfunction data memory.
Services include, for example:
Rrepair services
Rservice processes
Rwarranties
Rquality assurance
The vehicle is read out by employees of the ser-
vice network (including the manufacturer) using special diagnostic testers. More detailed infor-
mation is obtained from it, if required.
Data stored in the vehicle33
Introduction
Z

Cockpit
FunctionPage
:Steering wheel paddle shift-
ers152
;Combination switch114
=Horn
?Instrument cluster37
ADIRECT SELECT lever146
BClimate control systems124
COverhead control panel42
DControl panel for multimedia
system and vehicle functions39
EIgnition lock136
Start/Stop button137
FAdjusts the steering wheel105
GCruise control lever170
HElectric parking brake162
FunctionPage
IDiagnostics connection32
JOpens the hood303
KLight switch113
LControl panel for:
YActivating Distance
Pilot DISTRONIC with Steer-
ing Pilot
177
Ç Switching on Active
Lane Keeping Assist207
c Deactivating Parking
Assist PARKTRONIC190
Ô Switching on the 360°
camera194
Switching on the head-up
display213
Vehicles without a driver
assistance system: map/
coin holder
36Cockpit
At a glance

PRE-SAFE®takes the following measures
depending on the hazardous situation detected:
Rthe front seat belts are pre-tensioned.
Rif the vehicle skids, the side windows and the
sliding sunroof are closed.
Rvehicles with the memory function for the
front-passenger seat: the front-passenger
seat is adjusted if it is in an unfavorable posi-
tion.
If the hazardous situation passes without result-
ing in an accident, PRE-SAFE
®slackens the belt
pre-tensioning. All settings made by PRE-SAFE®
can then be reversed.
If the seat belt pre-tensioning is not reduced:
XMove the seat backrest or seat back slightly
when the vehicle is stationary.
The seat belt pre-tensioning is reduced and
the locking mechanism is released.
The seat-belt adjustment is an integral part of
the PRE-SAFE
®convenience function. Informa-
tion about the convenience function can be
found under "Belt adjustment" (
Ypage 48).
PRE-SAFE®PLUS (anticipatory occu-
pant protection system PLUS)
Introduction
PRE-SAFE®PLUS is only available in vehicles
with the Driving Assistance package.
Using the radar sensor system, PRE-SAFE
®
PLUS is able to detect that a head-on or rear-end
collision is imminent. In certain hazardous sit-
uations, PRE-SAFE
®PLUS takes pre-emptive
measures to protect the vehicle occupants.
Important safety notes
The intervention of PRE-SAFE®PLUS cannot
prevent an imminent collision.
The driver is not warned about the intervention
of PRE-SAFE
®PLUS.
PRE-SAFE®PLUS does not intervene if the vehi-
cle is backing up.
When driving, or when parking or exiting a park-
ing space with assistance from Parking Pilot,
PRE-SAFE
®PLUS will not apply the brakes.
Function
PRE-SAFE®PLUS intervenes in certain situa-
tions if the radar sensor system detects an
imminent head-on or rear-end collision.
PRE-SAFE
®PLUS takes the following measures
depending on the hazardous situation detected:
Rif the radar sensor system detects that a
head-on collision is imminent, the seat belts
are pre-tensioned.
Rif the radar sensor system detects that a rear-
end collision is imminent:
-the brake pressure is increased if the driver
applies the brakes when the vehicle is sta- tionary.
-the seat belts are pre-tensioned.
The PRE-SAFE®PLUS braking application is can-
celed:
Rif the accelerator pedal is depressed when a
gear is engaged
Rif the risk of a collision passes or is no longer
detected
Rif Distance Pilot DISTRONIC indicates an
intention to pull away
If the hazardous situation passes without result-
ing in an accident, the original settings are
restored.
Automatic measures after an acci-
dent
Immediately after an accident, the following
measures are implemented, depending on the
type and severity of the impact:
Rthe hazard warning lamps are switched on
Rthe emergency lighting is activated
Rthe vehicle doors are unlocked
Rthe front side windows are lowered
Rvehicles with a memory function: the electri-
cally adjustable steering wheel is raised when
the driver's door is opened
Rthe engine is switched off and the fuel supply
is cut off
Rvehicles with mbrace: automatic emergency
call
Occupant safety59
Safety
Z

Children in the vehicle
Important safety notes
Accident statistics show that children secured
in the rear seats are safer than children secured
in the front-passenger seat. For this reason,
Mercedes-Benz strongly advises that you install
a child restraint system on a rear seat. Children are generally better protected there.
If a child younger than twelve years old and
under 5 ft (1.50 m) in height is traveling in the
vehicle:
Ralways secure the child in a child restraint
system suitable for Mercedes-Benz vehicles.
The child restraint system must be appropri-
ate to the age, weight and size of the child
Rbe sure to observe the instructions and safety
notes in this section in addition to the child
restraint system manufacturer's installation
instructions
Rbe sure to observe the instructions and safetynotes on the "Occupant classification system
(OCS)" (
Ypage 52)
GWARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
Rrelease the parking brake.
Rshift the automatic transmission out of the
parking position P.
Rstart the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
GWARNING
If persons, particularly children are subjected to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle.
GWARNING
If the child restraint system is subjected to
direct sunlight, parts may get very hot. Chil-
dren may burn themselves on these parts,
particularly on the metal parts of the child
restraint system. There is a risk of injury.
If you leave the vehicle, taking the child with
you, always ensure that the child restraint
system is not exposed to direct sunlight. Pro- tect it with a blanket, for example. If the child
restraint system has been exposed to direct
sunlight, let it cool down before securing the
child in it. Never leave children unattended in
the vehicle.
Always ensure that all vehicle occupants have
their seat belts fastened correctly and are sitting
properly. Particular attention must be paid to
children.
Observe the safety notes on the seat belt
(
Ypage 46 )and the notes on correct use of seat
belts (Ypage 47).
A booster seat may be necessary to achieve
proper seat belt positioning for children over
41 lb s(18 kg) until they reach a height where a
three-point seat belt can be properly fastened
without a booster seat.
Special seatbelt retractor
GWARNING
If the seat belt is released while driving, the
child restraint system will no longer be
secured properly. The special seat belt retrac- tor is disabled and the inertia real draws in a
portion of the seat belt. The seat belt cannot
be immediately refastened. There is an
increased risk of injury, possibly even fatal.
Stop the vehicle immediately, paying atten-
tion to road and traffic conditions. Reactivate
the special seat belt retractor and secure the
child restraint system properly.
All seat belts in the vehicle, except the driver's
seat belt, are equipped with a special seat belt
retractor. When activated, the special seat belt
retractor ensures that the seat belt cannot
slacken once the child seat is secured.
60Children in the vehicle
Safety

Always observe the child restraint system man-
ufacturer's installation and operating instruc-
tions.
Forward-facing child restraint system
If it is absolutely necessary to install a forward-
facing child restraint system on the front-
passenger seat, always move the front-
passenger seat as far back as possible. Fully
retract the seat cushion length. The entire base
of the child restraint system must always rest on
the seat cushion of the front-passenger seat.
The backrest of the child restraint system must
lie as flat as possible against the backrest of thefront-passenger seat. The child restraint system
must not touch the roof or be subjected to a load
by the head restraint. Adjust the angle of the
seat backrest and the head restraint position
accordingly. Always make sure that the shoul-
der belt strap is correctly routed from the vehi-
cle belt outlet to the shoulder belt guide on the
child restraint system. The shoulder belt strap
must be routed forward and down from the vehi-
cle belt outlet. If necessary, adjust the vehicle
belt outlet and the front-passenger seat accord-
ingly.
Always observe the child restraint system man-
ufacturer's installation and operating instruc-
tions.
Child-proof locks
Important safety notes
GWARNING
If children are traveling in the vehicle, they
could:
Ropen doors, thus endangering other people
or road users
Rexit the vehicle and be caught by oncoming
traffic
Roperate vehicle equipment and become
trapped
There is a risk of an accident and injury.
Always activate the child-proof locks and
override feature if children are traveling in the vehicle. When leaving the vehicle, always take
the key with you and lock the vehicle. Never
leave children unattended in the vehicle. Override feature for:
Rthe rear doors (Ypage 65)
Rthe rear side windows (Ypage 65)
GWARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
Rrelease the parking brake.
Rshift the automatic transmission out of the
parking position P.
Rstart the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
GWARNING
If persons, particularly children are subjected to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle.
GWARNING
If the child restraint system is subjected to
direct sunlight, parts may get very hot. Chil-
dren may burn themselves on these parts,
particularly on the metal parts of the child
restraint system. There is a risk of injury.
If you leave the vehicle, taking the child with
you, always ensure that the child restraint
system is not exposed to direct sunlight. Pro- tect it with a blanket, for example. If the child
restraint system has been exposed to direct
sunlight, let it cool down before securing the
child in it. Never leave children unattended in
the vehicle.
64Children in the vehicle
Safety