light MERCEDES-BENZ CLA 2014 User Guide

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

Dashboard
FunctionPage
Steering wheel paddle
shifters147
Combination switch106
"Instrument cluster29
!Horn
DIRECT SELECT lever142
PARKTRONIC warning
display175
Overhead control panel34
Climate control systems120
FunctionPage
Ignition lock137
Adjusting the steering
wheel96
Cruise control lever162
Electric parking brake154
Light switch104
Diagnostics connection25
Opening the hood280
28Dashboard
At a glance

Instrumentcluster
Displays and controls
FunctionPage
Speedometer with
segments195
Multifunction display196
"Tachometer195
FunctionPage
!Coolant temperature194
Fuel gauge
Instrument cluster lighting194
Instrument cluster29
At a glance

Center console, lower section
FunctionPage
Ashtray262
Cigarette lighter262
Socket263
Stowage compartment254
Stowage compartment254
FunctionPage
"Cup holder260
!Stowage compartment254
Audio/COMAND
controller; see the separate
operating instructions
Center console33
At a glance

Overheadcontrol panel
FunctionPage

Switches the rear
compartment interior
lighting on/off110
Switches the right-
hand reading lamp on/off110
"Switches the front
interiorlighting/automatic
interior lighting control off110
!\nMB Info call button
(mbrace system)267
Rear-view mirror97
Buttons for the garage door
opener275
 SOS button (mbrace
system)265
FunctionPage
Roadside Assistance
call button (mbrace
system)266
Eyeglasses compartment255
Opens/closes the
panorama roof with power
tilt/sliding panel with roller
sunblinds86
Switches the front
interior lighting on110
Switches the left-
hand reading lamp on/off110
34Overhead control panel
At a glance

Useful information
iThis Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
iRead the information on qualified
specialist workshops: (Ypage 25).
Panic alarm
XTo activate:pressbuttonfor at
least one second.
An alarm sounds and the exterior lighting
flashes.
XTo deactivate:pressbutton
again.
or
XInsert the SmartKey into the ignition lock.
Occupant safety
Important safety notes
GWARNING
Modifications to the restraint systems could
result in them not functioning properly any
more. The restraint systems could then no
longer protect vehicle occupants as they are
designed to do and could fail in the eventof
an accident or activate unexpectedly, for
example. There is an increased risk of injury.
Never modify parts of the restraint systems.
Do notattemptto modify the wiring as well as
electronic components or their software.
If it is necessary to modify an air bag system
to accommodate a person with disabilities,
contact an authorized Mercedes-Benz center.
USA only: for further information contact our
Customer Assistance Center at
1-800-FOR-MERCedes (1800-367-6372).
In this section, you will learn the most
important facts about the restraint system
components of the vehicle.
The restraint system consists of:
RSeat belts
RChild restraint systems
RLATCH-type (ISOFIX) child seat securing
system
Additional protection is provided by:
RSRS (Supplemental Restraint System)
RAir bag system components with the
PASSENGER AIR BAG OFF indicator lamp
Although the systems are independent, their
protective functions work in conjunction with
each other. Not all air bags are always
deployed in an accident.
iFor information on infants and children
traveling with you in the vehicle restraint
systems for infants and children, see
"Children in the vehicle" (Ypage 54).
SRS (Supplemental Restraint System)
Introduction
Supplemental Restraint System (SRS) with:
RTheSRS warning lamp
RAir bags
RAir bag control unit (with crash sensors)
38Occupant safety
Safety

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

function for the vehicle occupants in the
event of a crash.
iAfter an airbag has been deployed, have
the vehicle towed to the nearestqualified
specialist workshop, evenifyour vehicle is
ready to drive.
Front air bags
Driver's air bagdeploys in front of the
steering wheel; front-passenger front air
bagdeploys in front of and above the glove
box.
The front air bags increase protection for the
driver's and front passenger's head and
chest.
They are deployed:
Rat the start of an accident with a high rate
of vehicle acceleration or deceleration in a
longitudinal direction
Rif the system determines that air bag
deployment can offer additional protection
to that provided by the seat belt
Rdepending on whether the seat belt is being
used
Rindependently of other air bags in the
vehicle
If the vehicle rolls over, the front air bags are
generally not 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 part of the
total available propellant gas, thereby
reducing the risk of injury. If the air bag
control unit recognizes within a few
milliseconds that the vehicle is being braked
or accelerated faster than originally
predicted, the front air bag is filled with the
maximum amount of propellant gas available.
The deployment of the front-passenger front
air bag is also influenced by the weight
category of the front passenger, which is
determined by the Occupant Classification
System (OCS) (Ypage 45).
The lighter the passenger-side occupant, the
higher the vehicle deceleration rate required
(predicted at the start of the impact) for
second stage inflation of the front-passenger
front air bag. In the second stage, the front
air bags are inflated with the maximum
amount of propellant gas available.
The front air bags are not deployed in
situations where a low impact severity is
predicted. You will then be protected by the
fastened seat belt.
The front-passenger front air bag will only
deploy if:
Rthe system, based on the OCS weight
sensor readings, detects that the front-
passenger seat is occupied
Rthe PASSENGER AIR BAG OFF indicator
lamp on the center console is not lit
(Ypage 45)
Rthe air bag control unit predicts a high
impact severity
Knee bags
Occupant safety43
Safety
Z

in a rear-facing child restraint on the rear
seat.
RIf you install a rear-facing child restraint on
the front-passengerseat, make sure the
indicator lamp is illuminated,
indicating that the front-passenger frontair
bag is deactivated. Should the
indicator lamp not illuminate or go out while
the restraint is installed, please check
installation.Periodically check the
indicator lamp while driving to
make sure that theindicator
lamp is illuminated. If the
indicator lamp goes out or remains out, do
not transport a child on the front-passenger
seat until the system has been repaired.
Achild in a rear-facing child restraint on the
front-passenger seat will be seriously
injured or even killed if the front-passenger
front air bag inflates.
RIf you place a child in a forward-facing child
restraint on the front-passenger seat:
-move the seat as far back as possible
-use the proper child restraint
recommended for the age, size and
weight of the child
-secure child restraint with the vehicle's
seat belt according to the child seat
manufacturer's instructions
RFor children larger than the typical 12-
month-old child, the front-passenger front
air bag may or may not be activated.
GWARNING
If the redSRS warning lamp in the
instrument cluster and the
indicator lamp light up simultaneously, the
OCS is malfunctioning. The front passenger
front air bag will be deactivated in this case.
Have the system checked by qualified
technicians as soon as possible. Contact an
authorized Mercedes-BenzCenter.
Only have the seat repaired or replaced at an
authorized Mercedes-Benz Center.
In order to ensure proper operation of the air
bag system and OCS:
RSit with the seat belt properly fastened in a
position that is as upright as possible with
your back against the seat backrest.
RWhen seated, a passenger should not
position him/herself in such a way as to
cause the passenger's weight to be lifted
from the seat cushion as this may result in
the OCS being unable to correctly
approximate the passenger's weight
category.
RRead and observe all warnings in this
chapter.
If the SmartKey has been removed from the
ignition lock or is in position0,
indicator lampdoes not light
up.
The Occupant Classification System (OCS)
categorizes the occupant on the front-
passenger seat using a weight sensor.The
front-passenger front air bag is deactivated
automatically for certain weight categories.
indicator lampshows you the
current status. Ifindicator
lampis lit, the front-passenger front air
bag is disabled.
The system does not deactivate:
Rthe side impact air bag
Rthe window curtain air bag
Rthe Emergency Tensioning Devices
Occupant safety47
Safety
Z