2014 MERCEDES-BENZ CLA warning lights

Audio system
see separate operating instructions
Authorized Centers
see Qualified specialist workshop
Authorized Mercedes-Benz Center
see Qualified specialist workshop
Authorized workshops
see Qualified specialist workshop
AUTO lights
Display message............................226
see Lights
Automatic engine start (ECO start/
stop function)....................................140
Automatic engine switch-off (ECO
start/stop function)..........................139
Automatic headlamp mode..............105
Automatic transmission
Automatic drive program...............147
Changing gear...............................145
DIRECT SELECT lever.....................142
Display message............................236
Drive program display....................143
Driving tips....................................145
Emergency running mode..............151
Engaging drive position .................. 144
Engaging neutral............................144
Engaging parkposition (AMG
vehicles)........................................145
Engaging reversegear...................143
Engaging the parkposition............143
Holding the vehicle stationary on
uphill gradients..............................145
Kickdown.......................................146
Manual drive program....................148
Overview........................................142
Problem (malfunction)...................151
Programselectorbutton................146
Pulling away...................................138
Selector lever................................144
Starting the engine........................138
Steering wheel paddle shifters......147
Transmission position display143, 144
Transmissionpositions..................145
Automatic transmission
emergency mode............................... 151
B
Backup lamp
Changing bulbs..............................114
Display message............................225
BAS (Brake Assist System).................62
Battery (SmartKey)
Checking .......................................... 74
Important safety notes....................74
Replacing.........................................74
Battery (vehicle)
Charging........................................302
Display message............................228
Important safety notes..................299
Jump starting.................................303
Belt force limiter
Activation ......................................... 53
Function ...........................................53
Blind SpotAssist
Activating/deactivating.................205
Display message............................231
Notes/function..............................188
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message............................219
Notes.............................................348
Brake lamps
Changing bulbs..............................114
Display message............................224
Brakes
ABS..................................................61
Adaptive Brake Assist......................63
BAS..................................................62
Brake fluid (notes).........................348
Display message............................213
Driving tips....................................158
Important safety notes..................158
Maintenance..................................159
Parking brake................................154
Warning lamp ................................. 242
Breakdown
see Flat tire
see Towing away/tow-starting
Bulbs
see Replacing bulbs
Index5

Switching the rearwindow
defroster on/off............................130
Switching the ZONE function on/
off..................................................128
Cockpit
Overview..........................................28
see Instrument cluster
COLLISIONPREVENTION ASSIST
Activating/deactivating the
distance warning function .............. 204
Displaymessage............................213
Operation/notes..............................62
COLLISIONPREVENTION ASSIST
PLUS
Activating/deactivating.................204
Operation/notes..............................64
COMAND
see separate operating instructions
Combination switch..........................106
Compass
Calibrating.....................................276
Calling up ....................................... 276
Setting...........................................276
Consumption statistics (on-board
computer)..........................................197
Convenience closing feature..............84
Convenience opening feature............84
Coolant(engine)
Checkingthe level.........................283
Display message............................227
Filling capacity...............................350
Important safety notes..................349
Temperature (on-board computer).209
Temperature gauge ........................ 194
Warning lamp ................................. 248
Cooling
see Climate control
Copyright.............................................26
Cornering light function
Changing bulbs..............................113
Display message............................223
Function/notes.............................107
Crash-responsive emergency
lighting...............................................111
Cruise control
Activationconditions.....................163
Cruise control lever.......................162
Deactivating ................................... 164
Display message............................233
Driving system...............................162
Function/notes.............................162
Important safety notes..................162
Settingaspeed .............................. 163
Storing and maintaining current
speed ............................................. 163
Cup holder
Centerconsole..............................260
Important safety notes..................260
Rearcompartment.........................261
Customer Assistance Center (CAC)...25
Customer Relations Department.......25
D
Dashboard
see Instrument cluster
Dashboard lighting
see Instrument cluster lighting
Data
see Technical data
Daytime running lamps
Display message............................226
Switching on/off (on-board
computer)......................................206
Switching on/off (switch)..............105
Dealerships
see Qualified specialist workshop
Declarations of conformity................. 24
Delayedswitch-off
Exteriorlighting (on-board
computer)......................................207
Interior lighting..............................208
Diagnostics connection......................25
Digital speedometer.........................198
DIRECT SELECTlever
see Automatic transmission
Display(cleaning instructions)........290
Display messages
ASSYST PLUS................................284
Calling up (on-board computer).....212
Driving systems.............................229
Engine ............................................ 227
General notes................................212
Hiding (on-board computer)...........212
Lights .............................................223
Index7

Fuel ................................................ 157
General..........................................156
Hydroplaning.................................161
Icy road surfaces...........................161
Limited braking efficiency on
salted roads...................................159
Snow chains..................................315
Symmetrical low beam..................104
Wet road surface...........................159
DVD audio (on-board computer)......200
DVD video (on-board computer)......201
E
EASY-VARIO-PLUS system
Cargo compartment enlargement..257
EBD (electronic brake force
distribution)
Display message............................215
Function/notes ................................ 69
ECO display
Function/notes.............................157
On-board computer.......................198
ECO start/stop function
Automatic engine start..................140
Automatic engine switch-off..........139
Deactivating/activating.................140
General information.......................139
Important safety notes..................139
Introduction...................................139
Electronic Stability Program
see ESP®(ElectronicStability Program)
Emergencyrelease
Driver's door....................................79
Trunk...............................................82
Vehicle.............................................79
Emergency Tensioning Devices
Activation ......................................... 39
Function ...........................................53
Safety guidelines.............................40
Emissions control
Service and warranty information....22
Engine
Check Engine warning lamp ........... 248
Display message............................227
ECO start/stop function................139
Engine number ............................... 345
Irregularrunning............................141
Jump-starting.................................303
Starting problems..........................141
Starting the engine with the
SmartKey.......................................138
Switching off..................................154
Tow-starting (vehicle) ..................... 308
Engine, jump starting
see Jump starting (engine)
Engine electronics
Problem (malfunction)...................141
Engine oil
Adding...........................................282
Additives........................................348
Checking the oil level ..................... 281
Checking the oil level using the
dipstick..........................................282
Display message............................228
Filling capacity...............................348
Notes about oil grades ................... 348
Notes on oil level/consumption....281
Temperature (on-board computer).209
Viscosity........................................348
ESP®(Electronic Stability
Program)
AMG menu (on-board computer)...210
Deactivating/activating (AMG
vehicles)..........................................66
Deactivating/activating (except
AMG vehicles)................................203
Deactivating/activating (notes;
except AMG vehicles)......................68
Display message............................213
ETS/4ETS........................................65
Function/notes.........................65, 66
General notes..................................65
Important safety information...........65
Trailer stabilization ........................... 69
Warning lamp ................................. 244
ETS/4ETS (Electronic Traction
System)................................................65
Exhaustcheck...................................157
Exhaustpipe (cleaning instructions)289
Exterior lighting
Settingoptions..............................104
see Lights
Index9

High-beam headlamps
Changing bulbs..............................113
Display message............................224
Switching on/off...........................106
Hill start assist..................................138
HOLD function
Deactivating ................................... 173
Display message............................230
Function/notes.............................172
Hood
Closing ...........................................281
Display message............................239
Important safety notes..................280
Opening.........................................280
Hydroplaning.....................................161
I
Ignition lock
see Key positions
Immobilizer..........................................70
Indicator lamps
see Warning and indicator lamps
Instrument cluster
Overview..........................................29
Settings.........................................206
Warning and indicator lamps...........30
Instrument cluster lighting..............194
Interior lighting.................................110
Automatic control..........................110
Delayed switch-off (on-board
computer)......................................208
Emergency lighting........................111
Manual control ............................... 110
Overview........................................110
Reading lamp.................................110
Setting the brightness of the
ambient lighting (on-board
computer)......................................207
J
Jack
Storage location............................294
Using.............................................337
Jump starting (engine)......................303
K
Kickdown
Driving tips....................................146
Manual drive program....................149
Knee bag..............................................43
L
Lamps
see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating.................205
Display message............................230
Function/information....................190
Lane Tracking package.....................188
Lap time (RACETIMER)......................210
LATCH-type (ISOFIX) child seat
anchors................................................58
License plate lamp (display
message)............................................ 225
Light function,active
Display message............................226
Lighting
Lightswitch...................................104
Lights
Activating/deactivating the
interiorlighting delayed switch-off.208
Automatic headlamp mode............105
Cornering light function.................107
Display message............................223
Driving abroad...............................104
Fog lamps......................................105
Fog lamps (extended)....................108
Hazard warning lamps...................107
High beam flasher .......................... 107
High-beam headlamps...................106
Low-beam headlamps....................105
Parking lamps................................106
Rearfog lamp................................106
Setting the brightness of the
ambient lighting (on-board
computer)......................................207
Standing lamps..............................106
Switching Adaptive Highbeam
Assist on/off.................................207
Switching the daytime running
lamps on/off (on-board computer) 206
Index11

PARKTRONIC
Deactivating/activating.................177
Driving system...............................175
Function/notes.............................175
Important safety notes..................175
Problem (malfunction)...................178
Range of the sensors.....................175
Warning display.............................176
PASSENGERAIR BAG OFF
Problems (malfunction) .................. 222
PASSENGER AIR BAG OFF indicator
lamp...................................................... 45
Plastic trim (cleaning instructions).290
Power washers..................................286
Power windows
see Side windows
Program selector button..................146
Protection of the environment
General notes..................................21
Pulling away
Automatic transmission.................138
Q
Qualifiedspecialistworkshop...........25
R
RACE START (AMG vehicles).............173
RACETIMER (on-board computer)....210
Radar sensor system
Activating/deactivating.................208
Display message............................230
Radio
Selectingastation.........................200
see separate operating instructions
Radio-wave reception/
transmission in the vehicle
Declarationofconformity................24
Reading lamp.....................................110
Rear compartment
Setting the airvents......................133
Rear fog lamp
Changing bulbs..............................114
Display message............................225
Switching on/off...........................106
Rear lamps
see Lights
Rear seats
Folding the backrestforwards/
back ............................................... 258
Rear view camera
Cleaning instructions.....................289
Function/notes.............................182
Switching on/off...........................183
Rear-view mirror
Anti-glare (manual)..........................97
Dipping (automatic).........................99
Rear window defroster
Problem (malfunction)...................131
Switching on/off...........................130
Refrigerant (air-conditioning
system)
Important safety notes..................350
Refueling
Fuel gauge.......................................29
Important safety notes..................151
Notes for AMG vehicles.................346
Refueling process..........................152
see Fuel
Remote control
Garage door opener.......................273
Programming (garage door opener) 273
Replacing bulbs
Important safety notes..................111
Overview of bulbtypes..................111
Removing/replacing the cover
(front wheel arch)..........................112
Reporting safety defects....................26
Reserve (fuel tank)
see Fuel
Reserve fuel
Display message............................228
Warning lamp ................................. 248
see Fuel
Residual heat (climate control)........131
Restraint system
see SRS (Supplemental Restraint
System)
Reverse gear (selector lever)...........144
Reversing feature
Panorama sliding sunroof................86
Roller sunblinds...............................87
Side windows...................................83
Roadside Assistance (breakdown)....23
14Index

Problem (malfunction).....................76
Starting the engine........................138
SmartKey positions (ignition lock)..137
Snow chains......................................315
Sockets
Center console..............................263
Points to observe before use.........263
Rearcompartment.........................264
Trunk.............................................264
Specialist workshop............................ 25
Special seat beltretractor.................. 57
Speed,controlling
see Cruise control
Speed Limit Assist
Activating/deactivating the
warning function............................203
Displaying......................................203
Display message............................229
Display message in the
multifunctiondisplay.....................187
Function/notes.............................187
Important safety notes..................187
Speedometer
Activating/deactivating the
additional speedometer.................206
Digital............................................198
In the Instrument cluster.................29
Segments......................................195
Selecting the unit of measurement 206
see Instrument cluster
SPORT handling mode
Activating/deactivating (AMG
vehicles)..........................................66
Warning lamp ................................. 245
SRS
see SRS (Supplemental Restraint
System)
SRS (Supplemental Restraint
System)
Display message............................219
Introduction.....................................38
Warning lamp ................................. 247
Warning lamp (function) ................... 39
Standing lamps
Display message............................225
Switching on/off...........................106
Start/stop function
see ECO start/stop function
Starting (engine)................................ 137
STEERCONTROL..................................69
Steering (display message)..............239
Steering wheel
Adjusting (manually)........................97
Button overview...............................31
Buttons (on-board computer) ......... 195
Cleaning ......................................... 290
Important safety notes....................96
Paddle shifters...............................147
Steering wheel paddle shifters........147
Stopwatch (RACETIMER)................... 210
Stowage areas...................................254
Stowage compartments
Armrest (front)...............................256
Armrest (under).............................256
Center console..............................255
Cupholders...................................260
Eyeglasses compartment...............255
Glove box .......................................255
Important safety information.........254
Parcelnet......................................257
Under driver's seat/front-
passenger seat..............................256
Stowage space
Center console (rear).....................256
Stowage well beneath the trunk
floor....................................................259
Summer tires.....................................314
Sun visor............................................261
Surround lighting (on-board
computer)..........................................207
Switching air-recirculation mode
on/off.................................................131
Switching off the alarm (ATA)............70
T
Tachometer........................................ 195
Tail lamps
Display message............................224
see Lights
Tank content
Fuel gauge.......................................29
Technical data
Capacities......................................345
Information....................................344
16Index

REmergency Tensioning Device for the front
seat belts and the outer seat belts in the
rear
RSeat belt force limiter for the front seat
belts and the outer seat belts in the rear
SRS reduces the risk of vehicle occupants
coming into contact with parts of the
vehicle's interior in the event of an accident.
It can also reduce the forces to which vehicle
occupants are subjected during an accident.
SRS warning lamp
GWARNING
If SRS is malfunctioning, child restraint
systemcomponents may be triggered
unintentionally or might not be triggered at all
in the event of an accident with a high rate of
vehicle deceleration. There is an increased
risk of injury, possibly even fatal.
Have SRS checked and repaired immediately
at a qualified specialist workshop.
SRS functions are checked regularly when
you switch on the ignition and when the
engine is running. Therefore, malfunctions
can be detected in good time.
TheSRS warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out no later than a few seconds
after the engine is started.
The SRS components are in operational
readiness when theSRS indicator lamp
goes out while the engine is running.
There is a malfunction if:
RtheSRS warning lamp does not light
up when the ignition is switched on
Rthe engine is running and theSRS
warning lamp does not go out after a few
seconds
Rthe engine is running and theSRS
warning lamp lights up again
Triggering of Emergency Tensioning
Devices and air bags
During the first stage of a collision, the air bag
control unit evaluates important physical
data relating to vehicle deceleration or
acceleration, such as:
Rduration
Rdirection
Rmagnitude
Based on the evaluation of this data, the air
bag control unit pre-emptively triggers the
Emergency Tensioning Device in the first
stage.
If there is an even higher rate of vehicle
deceleration or acceleration in a longitudinal
direction, the front air bags are also deployed.
Your vehicle has adaptive, two-stage front air
bags. The air bag control unit evaluates
vehicle deceleration or acceleration in the
event of a collision. In the first deployment
stage, the front air bag is filled with enough
propellant gas to reduce the risk of injuries.
The front air bag is fully deployed if a second
deployment threshold is reached within a few
milliseconds.
The Emergency Tensioning Device and air bag
triggering thresholds are variable and are
adapted to the detected rate of deceleration
or acceleration of the vehicle. This process is
pre-emptive in nature. The triggering process
must take place in good time at the start of
the collision.
The rate of vehicle deceleration or
acceleration and the direction of the force are
essentially determined by:
Rthe distribution of forces during the
collision
Rthe collision angle
Rthe deformation characteristics of the
vehicle
Rthe characteristics of the object with which
the vehicle has collided
Factors that can only be seen and measured
after a collision has occurred do not play a
Occupant safety39
Safety
Z

As the airbag inflates with considerable
speed and force, a proper seating position
and correct positioning of the hands on the
steering wheel will help to keep you at a safe
distance from the air bag. Occupants who are
notwearing their seat belt, are not seated
properly or are too close to the air bag can be
seriously injured or killed by an air bag, as it
inflates with great force instantaneously:
Rsit with the seat belt fastened correctly and
in a position that is as upright as possible
with your back against the backrest.
Rmove the driver's seat as far back as
possible, still permitting proper operation
of vehicle controls. The distance from the
center of the driver's chest to the center of
the air bag cover on the steering wheel
must be at least 10 inches (25 cm). You
should be able to accomplish this by
adjusting the seat and steering wheel. If
you have any difficulties, please contact an
authorized Mercedes-Benz Center.
Rdo not lean your head or chest close to the
steering wheel or dashboard.
Ronly hold the steering wheel on the outside.
Placing hands and arms inside the rim can
increase the risk and potential severity of
hand/arm injury if the driver front air bag
inflates.
Radjust the front-passenger seat as far back
as possible from the dashboard when the
seat is occupied.
Roccupants, especially children, should
never place their bodies or lean their heads
in the area of the door where the side
impact air bag inflates.This could result in
serious or fatal injuries should the side
impact air bag be deployed. Always sit as
upright as possible, wear the seat belt
properly and use an appropriately sized
infant restraint, toddler restraint or booster
seat recommended for the size and weight
of the child.
Failure to follow these instructions can result
in severe injuries to you or other occupants.
If you sell your vehicle, it is important that you
make the buyer aware of this safety
information. Be sure to give the buyer this
Operator's Manual.
If the air bags are deployed, you will hear a
bang, and a small amount of powder may also
be released. Only in rare cases will the bang
affect your hearing. The powder that is
released generally does not constitute a
health hazard and does not indicate that there
is a fire in the vehicle. The dust might cause
some temporary breathing difficulty for
people with asthma or other breathing
trouble. To avoid this, you may wish to get out
of the vehicle as soon as it is safe to do so.
You can also open the window to allow fresh
air to enter the vehicle interior. TheSRS
warning lamp lights up.
The air bag installation locations are
identified by the AIR BAG symbol.
The air bags are deployed if the air bag control
unit detects the need for deployment.Only in
the event of such a situationwill the air bags
provide their supplemental protection.
If the driverand front passengerdo not wear
their seat belts, it is not possible for the air
bags to provide their supplemental
protection.
In the event of other types of impacts and
impacts below air bag deployment
thresholds, the air bags will not deploy. The
driver and passenger will then be protected
to the extentpossible by a properly fastened
seat belt.Aproperly fastened seat beltis also
needed to provide the best possible
protection in a rollover.
Air bags provide additional protection; they
are not, however, a substitute for seat belts.
All vehicle occupants must fasten their seat
belts regardless of whether your vehicle is
equipped with air bags or not.
It is important for your safety and that of your
passenger to have deployed air bags replaced
and to have any malfunctioning air bags
repaired. This will help to make sure the air
bags continue to perform their protective
42Occupant safety
Safety