2013 MERCEDES-BENZ CLA-CLASS warning light

Trailer towing7-pin connector ............................. 206
Blind Spot Assist ............................ 199
Cleaning the trailer tow hitch ......... 292
Coupling up a trailer ......................204
Decoupling a trailer .......................204
Driving tips .................................... 201
Folding in the ball coupling ............205
Folding out the ball coupling ..........203
Important safety notes ..................201
Lights display message ..................237
Mounting dimensions ....................344
Parktronic ...................................... 185
Power supply ................................. 206
Shift range ..................................... 155
Trailer loads ................................... 345
Transmission
see Automatic transmission
see Manual transmission
Transmission position display
(DIRECT SELECT lever) ...................... 153
Transporting the vehicle .................. 311
Trim pieces (cleaning instructions) . 293
Trip computer (on-board computer) 211
Trip meter Calling up ....................................... 211
Resetting (on-board computer) ......212
see Trip meter
Turn signals
Changing bulbs (front) ...................117
Changing bulbs (rear) ....................118
Switching on/off ........................... 109
Two-way radio
Frequencies ................................... 334
Installation ..................................... 334
Transmission output (maximum) .... 334
Type identification plate
see Vehicle identification plate
Tyre pressure
Calling up (on-board computer) .....322
Display message ............................ 248
Not reached (TIREFIT) ....................301
Reached (TIREFIT) ..........................301
Recommended ............................... 319
Tyre pressure loss warning
Important safety notes ..................321
Restarting ...................................... 321Tyre pressure monitor
Checking the tyre pressure elec-
tronically ........................................ 323
Function/notes ............................. 322
Restarting ...................................... 324
Warning lamp ................................. 265
Warning message .......................... 323
Tyres
Changing a wheel .......................... 324
Checking ........................................ 317
Direction of rotation ......................325
Display message ............................ 248
Important safety notes ..................316
M+S tyres ...................................... 318
MOExtended tyres .........................318
Replacing ....................................... 324
Service life ..................................... 317
Storing ........................................... 325
Summer tyres ........................ 168, 318
Tyre size (data) .............................. 329
Tyre tread ...................................... 317
see Flat tyre
U
Unlocking Emergency unlocking .......................83
From inside the vehicle (central
unlocking button) ............................. 82
V
Vanity mirror (in sun visor) .............. 275
Variable SPEEDTRONIC see SPEEDTRONIC
Vehicle
Correct use ...................................... 24
Data acquisition ............................... 25
Electronics ..................................... 334
Equipment ....................................... 22
Implied warranty .............................. 24
Individual settings ..........................219
Leaving parked up .........................164
Locking (in an emergency) ...............84
Locking (key) ................................... 77
Lowering ........................................ 328
Pulling away ................................... 146
Raising ........................................... 326
Registration ..................................... 24
18IndexProCarManuals.com

CockpitFunctionPage:Steering wheel gearshift
paddles
156
;Combination switch109=Instrument cluster30?HornADIRECT SELECT lever152BPARKTRONIC warning dis-
play
182
COverhead control panel36DClimate control systems124FunctionPageEIgnition lock145FAdjusting the steering
wheel
100
GCruise control lever169HElectric parking brake163ILight switch107JDiagnostics connection23KOpening the bonnet28328CockpitAt a glance
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FunctionPage:Overhead control panel36;PARKTRONIC warning dis-
play
182
=Combination switch109?Instrument cluster30AHornBDIRECT SELECT lever152CSteering wheel gearshift
paddles
156
DLight switch107FunctionPageEElectric parking brake163FOpening the bonnet283GDiagnostics connection23HIgnition lock145IAdjusting the steering
wheel
100
JCruise control lever169KClimate control systems124Cockpit29At a glanceProCarManuals.com

Useful information
i This Owner's Manual describes all mod-
els, series and optional equipment for your
vehicle that were available at the time of
going to press. National variations are pos-
sible. Note that your vehicle may not be
equipped with all of the functions descri-
bed. This is also the case for systems and
functions relevant to safety.
i Read the information on qualified special-
ist workshops: ( Y page 24).
Panic alarm
X To activate: press ! button : for at
least one second.
An alarm sounds and the exterior lighting
flashes.XTo deactivate: press ! button :
again.
or
XInsert the key into the ignition lock.
i The panic alarm function is only available
in Mexico.
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 event of
an accident or activate unexpectedly, for
example. There is an increased risk of injury.
Never modify parts of the restraint systems.
Do not attempt to modify the wiring as well as
electronic components or their software.
The airbag system can be adapted for a per-
son with disabilities. For further information,
consult a Mercedes-Benz Service Centre.
The seat belts, together with SRS (Supple-
mental Restraint System), are complemen-
tary, co-ordinated restraint systems
( Y page 41). They reduce the risk of injury
in specific, pre-defined types of accident sit-
uations and thereby increase occupant
safety. However, seat belts and airbags gen-
erally do not protect against objects pene-
trating the vehicle from the outside.
To ensure that the restraint systems can
deliver their full potential protection, make
sure that:
R the seat and head restraint are adjusted
properly ( Y page 94)
R the seat belt has been fastened properly
( Y page 46)
R the airbags can inflate without restriction if
deployed ( Y page 42)
R the steering wheel is adjusted properly
( Y page 100)
R the restraint systems have not been modi-
fied
An airbag increases the protection of vehicle
occupants wearing a seat belt. However, air-
bags are only an additional restraint system
that complements, but does not replace, the
seat belt. All vehicle occupants must wear
their seat belt correctly at all times, even if
the vehicle is equipped with airbags. The air-
bags are not deployed in all types of acci-
dents. For example, if the protective capacity
of correctly fastened seat belts is not
increased by deploying the airbags, the air-
bags will not deploy.40Occupant safetySafety
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Airbag deployment only provides increased
protection if the seat belt is worn correctly.
The seat belt helps, firstly, to keep the vehicle
occupant in the best position in relation to the
airbag. Secondly, in a head-on collision, for
example, the seat belt restricts movement of
the vehicle occupant towards the point of
impact.
SRS (Supplemental Restraint System)
Introduction
Supplemental Restraint System (SRS) with:
R the 6 SRS warning lamp
R airbags
R airbag control unit (with crash sensors)
R belt tensioners for the front seat belts and
the outer seat belts in the rear
R seat belt force limiters 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 vehi-
cle's interior in the event of an accident. It can
also reduce the forces to which vehicle occu-
pants are subjected during an accident.
SRS warning lamp
GWARNING
If SRS is malfunctioning, child restraint sys-
tem components may be triggered uninten-
tionally 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.
The 6 SRS 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 read-
iness when the 6 SRS warning lamp goes
out while the engine is running.
A malfunction has occurred if:
R the 6 SRS warning lamp does not light
up when the ignition is switched on
R the engine is running and the 6 SRS
warning lamp does not go out after a few
seconds
R the engine is running and the 6 SRS
warning lamp lights up again
Triggering of belt tensioners and air-
bags
During the first stage of a collision, the airbag
control unit evaluates important physical
data relating to vehicle deceleration or accel-
eration, such as:
R duration
R direction
R magnitude
Based on the evaluation of this data, the air-
bag control unit pre-emptively triggers the
belt tensioners in the first stage.
If there is an even higher rate of vehicle decel-
eration or acceleration in a longitudinal direc-
tion, the front airbags are also deployed.
Your vehicle has adaptive, two-stage front air-
bags. The airbag control unit evaluates vehi-
cle deceleration or acceleration in the event
of a collision. In the first deployment stage,
the front airbag is filled with enough propel-
lant gas to reduce the risk of injuries. The
front airbag is fully deployed if a second
deployment threshold is reached within a few
milliseconds.
The belt tensioner and airbag 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.
Occupant safety41SafetyZProCarManuals.com

OFF indicator lamp must be continuously
lit.
If the front-passenger seat of your vehicle
does not have automatic child seat recog-
nition, or your rearward-facing child
restraint system does not have a trans-
ponder for automatic child seat recogni-
tion, children must be secured in a child
restraint system on a suitable seat in the
rear. If you secure a forward-facing child
restraint system to the front-passenger
seat, you must move the front-passenger
seat as far back as possible.
R make sure there are no heavy or sharp-
edged objects in the pockets of clothing.
R do not lean forwards, e.g. over the cover of
the driver's/front-passenger front airbag,
particularly when the vehicle is in motion.
R do not put your feet on the dashboard.
R only hold the steering wheel on the outside.
This allows the airbag to be fully deployed.
You could be injured if the airbag is
deployed and you are holding the inside of
the steering wheel.
R do not lean on the doors from inside the
vehicle.
R make sure that there are no people, ani-
mals or objects between the vehicle occu-
pants and the area where the airbags are
deployed.
R do not place any objects between the seat
backrest and the door.
R do not hang any hard objects, e.g. coat
hangers, on the grab handles or coat hooks.
R do not attach accessories, e.g. cup holders,
to the doors.
It is not possible to rule out a risk of injury
being caused by an airbag, due to the high
speed at which the airbag must be deployed.GWARNING
If you modify the airbag covers or affix
objects, e.g. stickers to them, the airbags may
no longer function as intended. There is an
increased risk of injury.
Never modify the airbag covers and do not
affix any objects to them.GWARNING
Unsuitable seat covers may obstruct or even
prevent deployment of the airbags integrated
into the seats. The airbags may then fail to
protect the vehicle occupants as intended.
Operation of the automatic child seat recog-
nition may also be impaired. There is an
increased risk of injury, possibly even fatal.
Use only seat covers which have been specif-
ically approved for the respective seat by
Mercedes-Benz.
GWARNING
After the driver's airbag has been deployed,
the airbag parts are hot. There is a risk of
injury.
Do not touch the airbag parts. Have deployed
airbags replaced immediately at a qualified
specialist workshop.
Airbag deployment slows down and restricts
the movement of the vehicle occupant.
If the airbags 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 powder may cause
short-term breathing difficulties to persons
suffering from asthma or other pulmonary
conditions. In order to prevent potential
breathing difficulties, you should leave 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. The 6 SRS warn-
ing lamp lights up.
The airbag installation locations are identified
by the AIRBAG symbol.
i After an airbag has been deployed, have
the vehicle towed to the nearest qualified
specialist workshop, even if your vehicle
can still be driven.
Occupant safety43SafetyZProCarManuals.com

Front airbags
! Do not place heavy objects on the front-
passenger seat. This could cause the sys-
tem to identify the seat as being occupied.
In the event of an accident, the restraint
systems on the front-passenger side may
be triggered and have to be replaced.
Driver's airbag : deploys in front of the
steering wheel; front-passenger front air-
bag ; deploys in front of and above the glove
compartment.
The front airbags increase protection for the
driver's and front-passenger's head and
chest.
They are deployed:
R at the start of an accident with a high rate
of vehicle acceleration or deceleration in a
longitudinal direction.
R if the system determines that airbag
deployment can offer additional protection
to that provided by the seat belt.
R depending on whether the seat belt is being
used.
R independently of other airbags in the vehi-
cle.
If the vehicle overturns, the front airbags are
generally not deployed.
Vehicles with automatic child seat recog-
nition in the front-passenger seat: front-
passenger airbag ; is only activated if the
system determines that the front-passenger
seat is occupied. The PASSENGER AIRBAG
OFF indicator lamp on the centre console
does not light up ( Y page 53).
If a child restraint system is fitted to the front-
passenger seat and the PASSENGER AIRBAG
OFF indicator lamp on the centre console is
not on:
R a child restraint system without a trans-
ponder for automatic child seat recognition
has been fitted or
R a child restraint system with a transponder
has been fitted incorrectly
Driver's kneebag
Driver's kneebag : deploys underneath the
steering column. The driver's kneebag is trig-
gered together with the front airbag. The driv-
er's kneebag is designed to operate together
with the front airbags in frontal impacts if cer-
tain thresholds are exceeded. The driver's
kneebag operates best in conjunction with
correctly positioned and fastened seat belts.
Driver's kneebag : increases the driver's
protection against:
R knee injuries
R thigh injuries
R lower leg injuries
Sidebags
GWARNING
Unsuitable seat covers may obstruct or even
prevent deployment of the airbags integrated
into the seats. The airbags may then fail to
protect the vehicle occupants as intended.
Operation of the automatic child seat recog-
44Occupant safetySafety
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Windowbags are deployed:
R at the start of an accident with a high rate
of lateral vehicle deceleration or accelera-
tion, e.g. in a side impact
R on the side on which an impact occurs
R on the driver's and the front passenger's
side if the vehicle overturns and the system
determines that deployment can offer addi-
tional protection to that provided by the
seat belt
R independently of the use of the seat belt
R regardless of whether the front-passenger
seat is occupied
R independently of the front airbags
PRE-SAFE ®
(anticipatory occupant
protection)
! Make sure that there are no objects in the
footwell or behind the seats when moving
the seat back. There is a risk that the seats
and/or the objects could be damaged.
PRE-SAFE ®
takes pre-emptive measures to
protect occupants in certain hazardous sit-
uations. Although your vehicle is equipped
with a PRE-SAFE ®
system, the possibility of
injury in the event of an accident cannot be
ruled out.
Always adapt your driving style to suit the
prevailing road and weather conditions and
maintain a safe distance from the vehicle in
front. Drive carefully.
PRE-SAFE ®
intervenes:
R when BAS activates, e.g. in emergency
braking situations.
R when adaptive Brake Assist intervenes
powerfully on vehicles with DISTRONIC
PLUS.
R in critical driving situations, e.g. when phys-
ical limits are exceeded and the vehicle
understeers or oversteers severely.
PRE-SAFE ®
takes the following measures
depending on the hazardous situation detec-
ted:
R the front seat belts are pre-tensioned.
R vehicles with the memory function: the
front-passenger seat is adjusted if it is in an
unfavourable position.
R if the vehicle skids, the panorama sliding
sunroof and the side windows are closed so
that only a small gap remains.
If the hazardous situation passes without
resulting in an accident, PRE-SAFE ®
slackens
the belt pretensioning. All settings made by
PRE-SAFE ®
can then be reversed.
If the seat belts are not released:XMove the backrest or seat back slightly, but
only when the vehicle is stationary.
Seat belt pretensioning is reduced and the
locking mechanism is released.
The seat-belt adjustment is an integral part of
the PRE-SAFE ®
convenience function. More
information about seat-belt adjustment can
be found under "Seat-belt adjustment"
( Y page 48).
Seat belts
Important safety notes
GWARNING
A seat belt which is not worn correctly, or
which has not been engaged in the seat belt
buckle correctly, cannot provide the intended
level of protection. Under certain circumstan-
ces, this could cause severe or even fatal inju-
ries in the event of an accident.
Therefore, make sure that all occupants — in
particular, pregnant women — wear their seat
belts correctly at all times.
R The seat belt must fit snugly on your body
and must not be twisted.Therefore, avoid
wearing bulky clothing, e.g. a winter coat.
The shoulder section of the belt must be
routed across the centre of your shoulder
46Occupant safetySafety
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