brakes MERCEDES-BENZ C-CLASS SALOON 2014 Owners Manual

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

Driving safety systems
ABS (Anti-lock Braking System) ...... .74
ADAPTIVE BRAK E............................. 82
Adaptive Brake Assist ...................... 79
Adaptive brake lights ....................... 80
BAS (Brake Assist System) .............. 75
Distance warning function ............... 77
ESP ®
(Electronic Stability Pro-
gram) ............................................... 80
ETS/4ETS (Electronic Traction
System) ........................................... 80
Important safety guidelines ............. 74
Overview .......................................... 74
PRE-SAFE ®
Brake ............................. 82
RBS (Recuperative Brake Sys-
tem) ................................................. 44
STEER CONTROL ............................. 85
Driving system
DISTRONIC PLUS with Steering
Assist and Stop&Go Pilot ............... 230
Driving systems
360°camera .................................. 249
Active Blind Spot Assist ................. 263
Active Lane Keeping Assist ............ 266
Active Parking Assist ..................... 239
AIRMATIC ...................................... 234
ATTENTION ASSIST ........................ 255
Blind Spot Assist ............................ 259
Cruise control ................................ 216
Display message ............................ 337
Distronic Plus ................................ 222
Driving Assistance packag e........... 263
HOLD function ............................... 232
Lane Keeping Assist ...................... 261
Lane package ................................ 259
PARKTRONIC ................................. 236
Reversing camera .......................... 244
SPEEDTRONIC ............................... 219
Traffic Sign Assist .......................... 256
Driving tips
Aquaplaning ................................... 214
Automatic transmission ................. 196
Brakes ........................................... 213
DISTRONIC PLUS ........................... 229
Downhill gradient ........................... 213
Driving abroad ............................... 134
Driving in winter ............................. 215
Driving on flooded roads ................ 215 Driving on wet roads ...................... 214
Fuel ................................................ 211
General .......................................... 211
Icy road surfaces ........................... 215
Limited braking efficiency on sal-
ted roads ....................................... 214
New brake disks ............................ 214
New brake pads/linings ................ 214
Running-in tip s............................... 180
Snow chains .................................. 431
Symmetrical dipped beam ............. 134
The first 1500 km .......................... 180
Towing a trailer .............................. 284
Wet road surface ........................... 214
DVD video
Operating (on-board computer) ..... 303 E
EASY-ENTRY feature Function/note s............................. 126
EASY-EXIT feature
Function/note s............................. 126
EASY-PACK convenience box ........... 374
EBD (electronic brake force distri-
bution)
Display message ............................ 318
Function/note s................................ 82
ECO display
Function/note s............................. 211
On-board computer ....................... 298
ECO start/stop function
Automatic engine start .................. 187
Automatic engine switch-off .......... 186
Climate control (THERMATIC) ........ 153
Climate control
(THERMOTRONIC) .......................... 156
Deactivating/activating ................. 187
General information ....................... 186
Important safety notes .................. 186
Introduction ................................... 186
Electric motor
Power display ................................ 272
see Hybrid operation
Electric motor power display ........... 272
Electromagnetic compatibility
Declaration of conformity ................ 27 10
Index

Function/notes ............................. 433
General notes ................................ 433
Important safety notes .................. 434
Radio type approval for the tyre
pressure monitor ........................... 436
Restarting ...................................... 435
Warning lamp ................................ .364
Warning message .......................... 435
Tyres
Changing a wheel .......................... 437
Checking ........................................ 429
Direction of rotatio n...................... 438
Display message ............................ 343
Important safety notes .................. 428
MOExtended tyre s......................... 430
Replacing ....................................... 438
Service life ..................................... 429
Storing ........................................... 438
Summer tyres in winter ................. 430
Tyre size (data ).............................. 444
Tyre tread ...................................... 429
Wheel and tyre combinations ........ 445
see Flat tyre U
Unlocking Emergency unlocking ....................... 98
From inside the vehicle (central
unlocking button) ............................. 97 V
Vanity mirror (in sun visor) .............. 378
Vehicle
Correct use ...................................... 28
Data acquisition ............................... 28
Display message ............................ 345
Electronics ..................................... 466
Equipment ....................................... 25
Implied warranty .............................. 28
Individual settings .......................... 307
Leaving parked up ......................... 211
Locking (in an emergency) ............. 100
Locking (key) ................................... 91
Lowering ........................................ 443
Operating safety .............................. 25
Pulling away ................................... 184
Raising ........................................... 439 Registration ..................................... 28
Securing from rolling away ............ 439
Towing away .................................. 420
Transporting .................................. 423
Unlocking (in an emergency) ........... 98
Unlocking (key) ................................ 91
Vehicle data ................................... 476
Vehicle data
Boot load (maximum) ..................... 476
Roof load (maximum) ..................... 476
Vehicle dimensions ........................... 476
Vehicle emergency locking .............. 100
Vehicle identification number
see VIN
Vehicle identification plate .............. 468
Vehicle level
AIRMATIC ...................................... 234
Display message ............................ 337
Vehicle maintenance
see ASSYST PLUS
Vehicle tool kit .................................. 407
Video
Operating the DVD ......................... 303
VIN ...................................................... 468 W
Warning and indicator lamps ABS ................................................ 355
Brakes ........................................... 353
Distance warning signal ................. 363
ESP ®
.............................................. 357
ESP ®
OFF ....................................... 358
Hybrid system ................................ 362
LIM (cruise control )........................ 216
LIM (DISTRONIC PLUS) .................. 223
LIM (variable SPEEDTRONIC) ......... 219
Overview .......................................... 35
Parking brake ................................ 359
PASSENGER AIR BAG ...................... 46
RBS (Recuperative Brake Sys-
tem) ............................................... 362
Reserve fuel ................................... 360
Seat belt ........................................ 351
SRS ................................................ 282
Steering ......................................... 365
Tyre pressure monitor ................... 364
Warning triangle ................................ 40622
Index

R
work on electronic components
R work on the hybrid system
Mercedes-Benz recommends that you use a
Mercedes-Benz Service Centre. Vehicle registration
Mercedes-Benz may ask its Service Centres
to carry out technical inspections on certain
vehicles. The quality or safety of the vehicle is
improved as a result of the inspection.
Mercedes-Benz can only inform you about
vehicle checks if it has your registration data.
It is possible that your vehicle has not yet
been registered in your name in the following
cases:
R if your vehicle was not purchased at an
authorised specialist dealer.
R if your vehicle has not yet been examined at
a Mercedes-Benz Service Centre.
It is advisable to register your vehicle with a
Mercedes-Benz Service Centre.
Inform Mercedes-Benz as soon as possible
about any change in address or vehicle own-
ership. You can do this at a Mercedes-Benz
Service Centre, for example. Correct use
If you remove any warning stickers, you or
others could fail to recognise certain dangers. Leave warning stickers in position.
Observe the following information when driv-ing your vehicle:
R the safety notes in this manual
R the technical data in this manual
R traffic rules and regulations
R laws and safety standards pertaining to
motor vehicles Implied 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 contraventions against these
instructions are not covered either by
Mercedes-Benz implied warranty or by the
New or Used-Vehicle Warranty.
Data stored in the vehicle
A wide range of electronic components in
your vehicle contain data memories.
These data memories temporarily or perma-
nently store technical information about:
R the vehicle's operating state
R events
R faults
In general, this technical information docu-
ments the state of a component, a module, a
system or the surroundings.
These include, for example:
R operating conditions of system compo-
nents, e.g. fluid levels
R the vehicle's status messages and those of
its individual components, e.g. number of
wheel revolutions/speed, deceleration in
movement, lateral acceleration, accelera-
tor pedal position
R malfunctions and defects in important sys-
tem components, e.g. lights, brakes
R vehicle reactions and operating conditions
in special driving situations, e.g. airbag
deployment, intervention of stability con-
trol systems
R ambient conditions, e.g. outside tempera-
ture
This data is of an exclusively technical nature and can be used to:
R assist in detecting and rectifying faults and
defects
R analyse vehicle functions, e.g. after an acci-
dent
R optimise vehicle functions 28
Introduction

Warning and indicator lamps
Function Page
:
å
ESP®
OFF 357
;
÷
ESP® 357
=
·
Distance warning 363
?
Ð
Power steering 365
A
#!
Turn signals 137
B
!
Electric parking brake
(yellow) 359
C
!
ABS 355
D
;
Engine diagnostics 360
E
%
Diesel engine: pre-
glow 183
F
!
Electric parking brake
(red) 359
G
J
Brakes (red) 353
H
?
Coolant 360 Function Page
I
J
Brakes (yellow) 353
J
6
Restraint system 44
K
ü
Seat belt 351
L
K
Main-beam head-
lamps 137
M
L
Dipped-beam head-
lamps 135
N
8
Reserve fuel 360
O
T
Side lamps, licence
plate and instrument clus-
ter lighting 136
P
N
This lamp has no func-
tion Q
R
Rear foglamp 135
R
h
Tyre pressure monitor 364
i
Information on warning and indicator
lamps in hybrid vehicles can be found in the
"Hybrid drive" section (Y page 272). Instrument cluster
35At a glance

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 meas-
ures depending on the hazardous situation
detected:
R If the radar sensor system detects that a
head-on collision is imminent, the seat
belts are pre-tensioned.
R If the radar sensor system detects that a
rear-end collision is imminent:
- the rear hazard warning lamps are acti-
vated and flash at a higher frequency.
- the brake pressure is increased if the
driver applies the brakes when the vehi-
cle is stationary.
- the seat belts are pre-tensioned.
The PRE-SAFE ®
PLUS braking application is
cancelled:
R if the accelerator pedal is depressed when
a gear is engaged
R if the risk of a collision passes or is no lon-
ger detected
R if DISTRONIC PLUS indicates an intention
to pull away
If the hazardous situation passes without
resulting 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:
R the hazard warning lamps are activated
R the emergency lighting is activated
R the vehicle doors are unlocked
R the front side windows are lowered
R vehicles with a memory function: the elec-
trically adjustable steering wheel is raised
R the engine is switched off R
vehicles with the Mercedes-Benz emer-
gency call system: automatic emergency
call
R vehicles with the hybrid drive system: the
hybrid system is deactivated Children in the vehicle
Important safety notes
Accident statistics show that children
secured in the rear seats are safer than chil-
dren 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 pro-
tected there.
If a child younger than 12 years old and under 1.50 m in height is travelling in the vehicle:
R always secure the child in a child restraint
system suitable for Mercedes-Benz vehi-
cles. The child restraint system must be
appropriate to the age, weight and size of
the child
R be sure to observe the instructions and
safety notes in this section in addition to
the child restraint system manufacturer's
installation instructions
R always pay attention to the instructions
and safety notes on the automatic front-
passenger front airbag deactivation system
(Y page 54) G
WARNING
If you leave children unattended in the vehi-
cle, they may be able to set the vehicle in
motion if, for example, they:
R release the parking brake
R shift the automatic transmission out of park
position Por shift manual transmission into
neutral
R start the engine
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury. Children in the vehicle
63Safety
Z

Important safety notes
i
Observe the "Important safety notes" sec-
tion (Y page 74). G
WARNING
If ABS is faulty, the wheels could lock when
braking. The steerability and braking charac-
teristics may be severely impaired. Addition-
ally, further driving safety systems are deac-
tivated. There is an increased danger of skid- ding and accidents.
Drive on carefully. Have ABS checked imme-
diately at a qualified specialist workshop.
If ABS is malfunctioning, other systems,
including driving safety systems, will also
become inoperative. Observe the information on the ABS warning lamp (Y page 355) and
display messages which may be shown in the
instrument cluster (Y page 315).
ABS works from a speed of about
8 km/hupwards, regardless of road-surface
conditions. ABS works on slippery surfaces,
even when you only brake gently.
Braking X
If ABS intervenes: continue to depress the
brake pedal with force until the braking sit-
uation is over.
X To make a full brake application:
depress the brake pedal with full force.
If ABS intervenes when braking, you will feel a pulsing in the brake pedal.
The pulsating brake pedal can be an indica-
tion of hazardous road conditions, and func-
tions as a reminder to take extra care while
driving. BAS (Brake Assist)
General notes BAS operates in emergency braking situa-
tions. If you depress the brake pedal quickly,
BAS automatically boosts the braking force,
thus shortening the stopping distance. Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 74). G
WARNING
If BAS is malfunctioning, the braking distance
in an emergency braking situation is
increased. There is a risk of accident.
In an emergency braking situation, depress
the brake pedal with full force. ABS prevents
the wheels from locking.
Braking X
Keep the brake pedal depressed firmly until
the emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated. BAS PLUS (Brake Assist PLUS) with
Cross-Traffic Assist
General notes i
Observe the "Important safety notes" sec-
tion (Y page 74).
BAS PLUS is only available on vehicles with
the Driving Assistance package.
For BAS PLUS to assist you when driving, the radar sensor system and the camera system
must be operational.
With the help of a sensor system and a cam-
era system, BAS PLUS can detect obstacles:
R that are in the path of your vehicle for an
extended period of time
R that cross the path of your vehicle
In addition, pedestrians in the path of your
vehicle can be detected.
BAS PLUS detects pedestrians using typical
characteristics such as the body contours
and posture of a person standing upright.
If the radar sensor system or the camera sys- tem is malfunctioning, BAS PLUS functions
are restricted or no longer available. The Driving safety systems
75Safety Z

When driving at a speed above 30 km/h
: if
you depress the brake pedal sharply, BAS
PLUS automatically increases the brake pres- sure to a degree suited to the traffic situation.
BAS PLUS provides braking assistance in haz- ardous situations with vehicles in front within
a speed range between 7 km/h and
250 km/h.
At speeds of up to approximately 70 km/h,
BAS PLUS can react to:
R stationary objects in the path of your vehi-
cle, e.g. stopped or parked vehicles
R pedestrians in the path of your vehicle
R obstacles crossing your path, which move
in the detection range of the sensors and
are recognised by them
i If BAS PLUS demands particularly high
braking force, preventative passenger pro-
tection measures (PRE-SAFE ®
) are activa-
ted simultaneously.
X Keep the brake pedal depressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
BAS PLUS is deactivated and the brakes func-
tion as usual again if:
R you release the brake pedal
R there is no longer a risk of collision
R no obstacle is detected in front of your
vehicle
R you depress the accelerator pedal
R you activate kickdown COLLISION PREVENTION ASSIST
PLUS
General notes COLLISION PREVENTION ASSIST PLUS con-
sists of a distance warning function with an
autonomous emergency braking function and
adaptive Brake Assist.
COLLISION PREVENTION ASSIST PLUS can
help you to minimise the risk of a collision with the vehicle in front or reduce the effects
of such a collision.
If COLLISION PREVENTION ASSIST PLUS
detects that there is a risk of a collision, you
will be warned visually and acoustically. If you
do not react to the visual and audible collision warning, autonomous braking can be initiated
in critical situations. If you apply the brake
yourself in a critical situation, the COLLISION PREVENTION ASSIST PLUS adaptive Brake
Assist assists you.
Important safety notes In particular, the detection of obstacles can
be impaired in the case of:
R dirt on the sensors or obscured sensors
R snow or heavy rain
R interference by other radar sources
R strong radar reflections, for example, in
multi-storey car parks
R a narrow vehicle travelling in front, e.g. a
motorcycle
R a vehicle travelling in front on a different
line
R new vehicles or after a service on the COL-
LISION PREVENTION ASSIST PLUS system
Please observe the information in the sec-
tion on running-in the vehicle
(Y page 180).
Following damage to the front end of the vehi-
cle, have the configuration and operation of
the radar sensor checked at a qualified spe-
cialist workshop. This also applies to colli-
sions at slow speeds where there is no visible
damage to the front of the vehicle.
Distance warning function Important safety notes
i Observe the "Important safety notes" sec-
tion for driving safety systems (Y page 74). Driving safety systems
77Safety Z

Vehicles with DISTRONIC PLUS:
the auton-
omous braking function is available in the fol- lowing speed ranges:
R 7 - 200 km/h for moving objects
R 7 - 50 km/h for stationary objects
If the autonomous braking function demands particularly high braking force, preventative
passenger protection measures (PRE-SAFE ®
)
are activated simultaneously.
Adaptive Brake Assist i
Observe the "Important safety notes" sec-
tion (Y page 74).
Adaptive Brake Assist provides braking assis- tance in hazardous situations at speeds
above 7 km/h. It uses radar sensor technol-
ogy to assess the traffic situation. G
WARNING
Adaptive Brake Assist cannot always clearly
identify objects and complex traffic situa-
tions.
In such cases, Adaptive Brake Assist can:
R intervene unnecessarily
R not intervene
There is a risk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake. Terminate the
intervention in a non-critical driving situation. G
WARNING
Adaptive Brake Assist does not react:
R to people or animals
R to oncoming vehicles
R to crossing traffic
R when cornering
As a result, the Adaptive Brake Assist may not intervene in all critical conditions. There is a
risk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake.
Due to the nature of the system, particularly
complicated but non-critical driving condi- tions may also cause Brake Assist to inter-
vene.
If adaptive Brake Assist is not available due to a malfunction in the radar sensor system, thebrake system remains available with full
brake boosting effect and BAS.
With the help of adaptive Brake Assist, the
distance warning signal can detect obstacles
that are in the path of your vehicle for an
extended period of time.
If adaptive Brake Assist detects a risk of col-
lision with the vehicle in front, it calculates
the braking force necessary to avoid a colli-
sion. If you apply the brakes forcefully, adap-
tive Brake Assist will automatically increase
the braking force to a level suitable for the
traffic conditions.
X Keep the brake pedal depressed until the
emergency braking situation is over.
ABS prevents the wheels from locking.
The brakes will work normally again if:
R you release the brake pedal
R there is no longer any danger of a collision
R no obstacle is detected in front of your
vehicle
Adaptive Brake Assist is then deactivated.
If adaptive Brake Assist demands particularly
high braking force, preventative passenger
protection measures (PRE-SAFE ®
) are activa-
ted simultaneously.
Up to a speed of approximately 250 km/h,
adaptive Brake Assist is capable of reacting to
moving objects that have already been detec- ted as such at least once over the period of
observation.
Up to a speed of approximately 70 km/h
adaptive Brake Assist reacts to stationary
obstacles. Driving safety systems
79Safety Z

Adaptive brake lamps
The adaptive brake lights warn following traf- fic in an emergency braking situation:
R by flashing brake lamps
R by activating the hazard warning lamps
If you brake sharply from a speed of more
than 50 km/h or if braking is assisted by BAS
or BAS PLUS, the brake lamps flash rapidly. In this way, traffic travelling behind you is
warned in an even more noticeable manner.
If you brake sharply from a speed of more
than 70 km/h to a standstill, the hazard warn-
ing lamps are activated automatically. If the
brakes are applied again, the brake lamps
light up continuously. The hazard warning
lamps switch off automatically if you travel
faster than 10 km/h. You can also switch off the hazard warning lamps using the hazard
warning button (Y page 137).ESP
®
(Electronic Stability Program)
General notes i
Observe the "Important safety notes" sec-
tion (Y page 74).
ESP ®
monitors driving stability and traction,
i.e. power transmission between the tyres
and the road surface.
If ESP ®
detects that the vehicle is deviating
from the direction desired by the driver, one
or more wheels are braked to stabilise the
vehicle. The engine output is also modified to keep the vehicle on the desired course within
physical limits. ESP ®
assists the driver when
pulling away on wet or slippery roads. ESP ®
can also stabilise the vehicle during braking.
ETS/4ETS (Electronic Traction System) i
Observe the "Important safety notes" sec-
tion (Y page 74).
ETS traction control is part of ESP ®
. On vehi-
cles with 4MATIC, 4ETS is a component of
ESP ®
. Traction control brakes the drive wheels indi-
vidually if they spin. This enables you to pull
away and accelerate on slippery surfaces, for example if the road surface is slippery on one
side. In addition, more drive torque is trans-
ferred to the wheel or wheels with traction.
Traction control remains active if you deacti-
vate ESP ®
.
Important safety notes i
Observe the "Important safety notes" sec-
tion (Y page 74). G
WARNING
If ESP ®
is malfunctioning, ESP ®
is unable to
stabilise the vehicle. In addition, other driving
safety systems are switched off. This increa-
ses the risk of skidding and an accident.
Drive on carefully. Have ESP ®
checked at a
qualified specialist workshop.
! If you test the parking brake using a brake
dynamometer, switch the ignition off.
Application of the brakes by ESP ®
may oth-
erwise destroy the brake system.
When towing your vehicle with the rear axle
raised, observe the notes on ESP ®
(Y page 422).
ESP ®
is deactivated if the åwarning lamp
in the instrument cluster lights up and:
R the vehicle is moving
R the ECO start/stop function is activated
If the ÷ warning lamp lights up continu-
ously, ESP ®
is not available due to a malfunc-
tion.
Observe the information on warning lamps
(Y page 357) and display messages which
may be shown in the instrument cluster
(Y page 315).
Only use wheels with the recommended tyre
sizes. Only then will ESP ®
function properly. 80
Driving safety systemsSafety