2014 MERCEDES-BENZ CLS instrument cluster

Warning and indicator lamps
FunctionPage
ESP®269
SPORT handling
mode in AMG vehicles270
Distance warning275
$ ESP®OFF269
!
Turn signals119
Brakes (USA only)266
%
Brakes (Canada only)266
ABS267
SRS272
\nCheck Engine273
Tire pressure monitor276
FunctionPage
Seat belt265
ESP®in AMG vehicles270
Coolant273
High-beam
headlamps119
Low-beam
headlamps118
Parking lamps118
This lamp has no
function
Reserve fuel273
32Instrument cluster
At ag lance

iFor information on infants and children
traveling with youinthe vehicle as well as
restraint systems for infants and children,
see "Childreninthe vehicle"
(Ypage 60).
SRS (Supplemental Restraint System)
Introduction
RS consistsof:
RTheRS warning lamp
RAir bags
RThe air bag control unit with crash sensors
REmergency Tensioning Device for the front
seat belts and the outer seat belts in the
rear
RSeat belt force limiters for the front seat
belts and the outer seat belts in the rear
RS reduces the risk of occupants coming into
contact with the vehicle's interior in the event
of an accident. It can also reduce the effect
of the forces to which occupants are
subjected during an accident.
SRS warning lamp
GWARNING
If SRS is malfunctioning, child restraint
system components may be triggered
unintentionally or might not be triggered at all
in the event of an accident withahigh rate of
vehicle deceleration. There is an increased
risk of injury, possibly even fatal.
Have SRS checked and repaired immediately
ataqualified 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 thanafew 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 isamalfunction 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 afterafew
seconds
Rthe engine is running and theSRS
warning lamp lights up again.
Safety guidelines for seat belts,
Emergency Tensioning Devices (ETDs)
and air bags
GWARNING
RDamaged seat belts or seat belts that have
been subjected to stress in an accident
must be replaced. Their anchoring points
must also be checked. Only use seat belts
installed or supplied by an authorized
Mercedes-BenzCenter.
RAir bags and pyrotechnic Emergency
Tensioning Devices (ETDs) contain
perchlorate material, which may require
special handling and regard for the
environment. Check your national disposal
guidelines. California residents, see
www.dtsc.ca.gov/HazardousWaste/
Perchlorate/index.cfm.
RAir bags and ETDs are designed to function
onaone-time-only basis. An air bag or ETD
that has deployed must be replaced. PRE-
SAFE®has electrically operated reversible
belt tensionersinaddition to the
pyrotechnic ETDs.
RDo not pass seat belts over sharp edges.
They could tear.
RDo not make any modification that could
change the effectiveness of the seat belts.
RDo not bleach or dye seat belts as this may
severely weaken them. Inacrash they may
not be able to provide adequate protection.
Occupant safety41
Safety
Z

Note the following important information if it
is necessary to carryachild on the front-
passenger seat:
RYour vehicle is equipped with air bag
technology designed to deactivate the
front-passenger front air bag and the front-
passenger knee bag in yourvehicle when
the system senses the weight ofatypical
12-month-old child or less along with the
weight ofastandardappropriate child
restraint on the front-passenger seat.
RAchild inarear-facing child restraint on the
front-passenger seat will be seriously
injured or even killed if the front-passenger
front air bag inflates inacollision which
could occur under some circumstances,
even with the air bag technology installed
in your vehicle. The only means to eliminate
this risk completely is never to placeachild
inarear-facing child restraint in the front-
passenger seat. We therefore strongly
recommendthat you always placeachild
inarear-facing child restraint on the rear
seat.
RIf you installarear-facing child restraint on
the front-passenger seat, make sure the
indicator lamp is illuminated,
indicating that the front-passenger front air
bag and front-passenger knee bag are
deactivated. Should the
indicator lamp not illuminate or go out while
the restraint is installed, please check
installation. Periodicallycheck the
indicator lamp while driving to
make sure that theindicator
lamp is illuminated. If the
indicator lamp goes out or remains out, do
not transportachild on the front-passenger
seat until the system has been repaired.
Achild inarear-facing child restraint on the
front-passenger seat could be seriously
injured or even killed if the front-passenger
front air bag is deployed.
RIf you placeachild inaforward-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 and the front-passenger knee bag
may or may not be activated.
GWARNING
If the redSRS warning lamp in the
instrumentcluster and the
indicator lamp light up simultaneously,the
OCS is malfunctioning. The front passenger
front air bag and the front passenger knee 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-BenzCenter.
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,apassenger should not
position him/herself in suchaway as to
cause the passenger'sweight to be lifted
from the seat cushion as this may result in
the OCS being unable to correctly
approximatethe passenger'sweight
category.
RRead and observe all warnings in this
chapter.
Occupant safety49
Safety
Z

If the SmartKey is removed from the ignition
lock or is in position0,PASSENGER AIR BAG
OFF indicator lampdoes not light up.
The Occupant Classification System (OCS)
categorizesthe occupant on the front-
passengerseat usingaweight sensor.The
front-passenger front air bag is deactivated
automatically for certain weight categories.
The PASSENGER AIR BAG OFF indicator lamp
shows you the current status.
Occupant Classification System (OCS)
categories the occupant on the front-
passenger seat usingaweight sensor.
The front-passenger front air bag and the
front-passenger knee bag are deactivated
automatically for certain weight categories.
The PASSENGER AIR BAG OFF indicator lamp
shows you the current status.
If the PASSENGER AIR BAG OFF indicator
lamp lights up, the front-passenger front air
bag and the front-passenger knee bag are
disabled.
The system does not deactivate:
Rthe side impact air bag
Rthe pelvis air bag
Rthe window curtain air bag
Rthe Emergency Tensioning Devices
To be classified correctly, the front passenger
must sit:
Rwith the seat belt fastened correctly
Rinaposition that is as upright as possible
with their back against the seat backrest
Rwith their feet on the floor
The OCS weight sensor reading is affected if
the occupant's weight is transferred, e.g. by
leaning on the armrest.
If the front-passenger seat, the seat cover or
the seat cushion are damaged, have the
necessary repair work carried out at a
qualified specialist workshop.
For safety reasons, Mercedes-Benz
recommends that you only use seat
accessories that have been approved by
Mercedes-Benz.
Both the driver and the front passenger
should always observe the PASSENGER AIR
BAG OFF indicator lamp as an indication of
whether or not the front passenger is
positioned correctly. Observe also the air bag
displaymessages that can be displayed in the
instrumentcluster (Ypage 244).
If the driver's air bag deploys, this does not
mean that the front-passenger front air bag
will also deploy.
The OCS may have detected that the seat:
Ris empty or occupied by the weight of a
typical child up to twelve months old,
seated inachild restraint system
Ris occupied byasmall individual, such as a
young teenager orasmall adult
Ris occupied byachild inachild restraint
system whose weight is greater than that
ofatypical twelve monthold child.
These are examples of when the OCS
deactivates the front-passenger front air bag
and front-passenger knee bag. Deactivation
takes place although the collision fulfills the
criteria for deploying the driver's air bag.
For further information,see "Air bag display
messages" (Ypage 244).
System self-test
GWARNING
If theindicator lamp does not
illuminate, the system is not functioning. You
must contactanauthorized Mercedes-Benz
50Occupant safety
Safety

60 seconds or until the driverorfront
passenger have fastenedtheir seatbelts.
If the driver/frontpassenger unfasten their
seat belt while the vehicle is in motion,the
seat belt warning lamp lights up and a
warning tonesounds again.
The warning toneceases even if the driver or
front-passenger seat belt has still not been
fastened after 60 seconds. Theseat belt
warning lamp stops flashing but remains
illuminated.
After the vehicle comes toastandstill, the
warning toneisreactivated and the seat belt
warning lampflashes again if the vehicle
speed again exceeds 15 mph (25 km/h).
Theseat belt warning lamp only goes
out if:
Rboth the driver and the frontpassenger
have fastened their seat belts.
or
Rthevehicle is stationaryandadoor is open.
iFor moreinformationontheseat
belt warning lamp, see "Warning and
indicator lamps in theinstrumentcluster,
seat belts" (Ypage 265).
Emergency TensioningDevices, seat
belt force limiters
GWARNING
Pyrotechnic Emergency Tensioning Devices
that have been deployed are no longer
operational and are unable to performtheir
intended protective function. This poses an
increased risk of injury or even fatal injury.
Therefore, have pyrotechnic Emergency
Tensioning Devices which have been
triggered immediately replaced ataqualified
specialist workshop.
!If the front-passenger seat is not
occupied, do not engage the seat belt
tongue in the buckle on the front-
passenger seat. Otherwise, the Emergency
Tensioning Device could be triggered in the
event of an accident.
iVehicles with PRE-SAFE®:Emergency
Tensioning Devices that are triggered by an
electric motor can be deployed as often as
desired and do not need to be replaced.
The front seat belts and the outer seat belts
in the rear are equipped with Emergency
Tensioning Devices and seat belt force
limiters.
The ETDs tighten the seat belts in an accident,
pulling them close against the body.
The ETDs do not correct incorrectseat
positions or incorrectly fastened seat belts.
The ETDs do not pull vehicle occupants back
towards the backrest.
The ETDs can only be activated when:
Rthe ignition is switched on
Rthe restraint systems are operational; see
"SRS warning lamp"(Ypage 41)
Rthe belt tongue is engaged in the buckle on
each of the front seat belts.
The ETDs on the outside seats in the rear
compartmentare triggeredindependently of
the lock status of the seat belts.
The ETDs are triggereddepending on the type
and severity of an accident:
Rif, in the event ofahead-on or rear-end
collision, the vehicledecelerates or
accelerates rapidly inalongitudinal
direction during the initialstages of the
impact
Rif,inthe event ofasideimpact,onthe side
opposite the impact the vehicle
decelerates or accelerates rapidlyina
lateraldirection
Rif,incertainsituations where the vehicle
rolls over,the system determines that it
can provide additional protection
If the ETDsare deployed, you will hearabang,
andasmall amountofpowder may also be
released. Only in rare cases will the bang
affect your hearing. The powder that is
released generally does not constitute a
Occupant safety59
Safety
Z

XTo activate/deactivate:press button.
If indicator lampis lit, operationofthe
rear side windows is disabled. Operation is
only possible using the switches in the
driver's door. If indicator lampis off,
operation is possible using the switches in
the rear compartment.
Driving safety systems
Overview of driving safety systems
In this section, you will find information about
the following driving safety systems:
RABS (Anti-lockBrakingSystem)
(Ypage 66)
RBAS (BrakeAssistSystem) (Ypage 67)
RBAS PLUS (BrakeAssistSystem Plus)
(Ypage 67)
RESP®(ElectronicStabilityProgram)
(Ypage 68)
REBD (ElectronicBrake forceDistribution)
(Ypage 71)
RADAPTIVE BRAKE (Ypage 72)
RPRE-SAFE®Brake (Ypage 72)
Important safety notes
If you fail to adapt your driving style or
become distracted, the driving safety
systems can neither reduce the risk of
accident nor override the laws of physics.
Driving safety systems are merely aids
designed to assist driving. You are
responsible for the distance to the vehicle in
front,for vehicle speed and for braking in
good time. Always adapt your driving style to
suit the prevailing road, weather and traffic
conditionsand maintainasafe distancefrom
thevehicle in front. Drive carefully.
iThe driving safety systems describedonly
work as effectivelyaspossible when there
is adequatecontactbetween thetires and
theroad surface. Pleasepay special
attentiontothenotesontires,
recommendedminimumtire tread depths,
etc.(Ypage 334).
In wintry drivingconditions, always use
winter tires (M+S tires) and if necessary,
snowchains. Only in this way will the
drivingsafetysystems described in this
section work as effectively as possible.
ABS (Anti-lock BrakingSystem)
Important safety notes
iObserve the "Importantsafetynotes"
section(Ypage 66).
GWARNING
If ABSisfaulty, the wheels could lock when
braking. The steerability and braking
characteristics may be severely impaired.
Additionally, further driving safety systems
are deactivated. There is an increased danger
of skidding and accidents.
Drive on carefully.Have ABS checked
immediately ataqualified specialist
workshop.
When ABS is malfunctioning, other systems,
including driving safety systems, will also
become inoperative. Observe the information
on the ABS warning lamp (Ypage 267) and
displaymessages which may be shown in the
instrument cluster (Ypage 238).
ABS regulates brake pressure in suchaway
that the wheels do not lock when you brake.
This allows you to continue steering the
vehicle when braking.
66Driving safety systems
Safety

ABS works fromaspeedof about5mph
(8 km/h)upwards,regardless of road-surface
conditions.ABS works on slippery surfaces,
evenifyou only brake gently.
The yellowABS warning lamp in the
instrument cluster lights up when the ignition
is switched on. It goes out when the engine is
running.
Braking
XIf ABS intervenes:continue to depress the
brake pedal vigorously until the braking
situation is over.
XTo makeafull brake application:
depress the brake pedal with full force.
If ABS intervenes when braking, you will feel
apulsing in the brake pedal.
The pulsating brake pedal can be an
indication of hazardous road conditions, and
functions asareminder to take extracare
while driving.
BAS (Brake Assist System)
iObserve the "Important safety notes"
section (Ypage 66).
GWARNING
If BAS is malfunctioning, the braking distance
in an emergencybraking situation is
increased. There isarisk of an accident.
In an emergencybraking situation, depress
the brake pedal with full force. ABS prevents
the wheels from locking.
BAS operates in emergencybraking
situations. If you depress the brake pedal
quickly, BAS automatically boosts the braking
force, thus shortening the stopping distance.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated.
BAS PLUS (Brake Assist System
PLUS)
General information
iObserve the "Important safety notes"
section (Ypage 66).
BAS PLUS is only available in vehicles
equipped with DISTRONIC PLUS.
For BAS PLUS to assist you when driving, the
radar sensor system must be:
Ractivated (Ypage 232)
Roperational
With the help of the radar sensor system, BAS
PLUS can detect obstacles that are in the
path of your vehicle for an extended period of
time.
If the radar sensor system is malfunctioning,
BAS PLUS will not be available. The brake
system is still available with complete brake
boosting effect and BAS.
BAS PLUS provides braking assistance in
hazardous situations at speeds greater than
4mph (7 km/h).
At speeds of up to approximately 40 mph
(70 km/h),BAS PLUS can also react to
stationary objects. Examples of stationary
objectsare stopped or parked vehicles.
Important safety notes
GWARNING
BAS PLUS cannot alwaysclearly identify
objectsand complex traffic situations. BAS
PLUS cannot intervene in these cases. There
isarisk of an accident.
Always pay careful attention to the traffic
situation and be ready to brake.
GWARNING
BAS PLUS does not react:
Rto people or animals
Rto oncoming vehicles
Rto crossingtraffic
Rwhen cornering
Driving safety systems67
Safety
Z

Asaresult, BAS PLUS may not intervene in all
critical situations. There isarisk of an
accident.
Always pay careful attention to the traffic
situation and be ready to brake.
In particular, the detection of obstacles can
be impaired if there is:
Rdirt on the sensorsoranythingelse
covering the sensors
Rsnow or heavy rain
Rinterference by other radar sources
Rthere are strong radar reflections, for
example in parking garages
Ranarrow vehicle travelinginfront, e.g. a
motorbike
Ravehicle travelinginfrontonadifferent line
relative to the center of your vehicle
Following damage to the frontend of the
vehicle, have the configurationand operation
of the radarsensorschecked ataqualified
specialist workshop. This also applies to
collisions at low speeds where thereisno
visible damage to the frontofthe vehicle.
Braking assistance
To preventacollision with the vehicle in front,
BAS PLUS calculates the brake force
necessary if:
Ryou approach an obstacle, and
RBAS PLUS has detectedarisk of collision
When driving ataspeed under 20 mph
(30 km/h):ifyou depress the brake pedal,
BAS PLUS is activated. The increase in brake
pressure will be carried out at the last
possible moment.
When driving ataspeed greater than
20 mph (30 km/h):ifyou depress the brake
pedal sharply, BAS PLUS automatically raises
the brake pressure toavalue adapted to the
traffic situation.
If BAS PLUS demands particularly high
braking force, preventative passenger
protection measures (PRE-SAFE®)are
activated simultaneously.
XKeep the brake pedal depressed until the
emergencybraking situation is over.
ABS preventsthe wheels from locking.
BAS PLUS is deactivated and the brakes
function as usual if:
Ryou release the brake pedal
Rthere is no longerarisk of collision
Rno obstacle is detected in front of your
vehicle
ESP®(Electronic Stability Program)
Important safety notes
iObserve the "Important safety notes"
section (Ypage 66).
GWARNING
If ESP®is malfunctioning, ESP®is unable to
stabilize the vehicle. Additionally, further
driving safety systems are deactivated. This
increases the risk of skidding and an accident.
Drive on carefully. Have ESP®checked at a
qualified specialist workshop.
!Vehicles with 4MATIC: switch off the
ignition when the parking brake is being
tested onabrake dynamometer.
Application of the brakes by ESP®may
otherwise destroy the brake system.
Vehicles without 4MATIC: observe the notes
on ESP®(Ypage 330) when towing the
vehicle witharaised rear axle.
ESP®is deactivated if the warning lamp
in the instrument cluster lights up
continuously when the engine is running.
If thewarning lamp and the
warning lamp are lit continuously, ESP®is not
available due toamalfunction.
Observe the information on warning lamps
(Ypage 269) and display messages which
may be shown in the instrument cluster
(Ypage 238).
68Driving safety systems
Safety