2014 MERCEDES-BENZ CLS engine

Never tamper with the wiring as well as
electronic components or their software. You
shouldhave all work to electrical and
electronic equipment carried out ataqualified
specialist workshop.
!There isarisk of damage to the vehicle if:
Rthe vehicle becomes stuck, e.g. onahigh
curb or an unpaved road
Ryou drive too fast over an obstacle, e.g.
acurb orahole in the road
Raheavy object strikes the undercarriage
or parts of the chassis.
In situations like this, the body,the
undercarriage, chassis parts, wheelsor
tires could be damaged withoutthe
damage being visible. Components
damaged in this way can unexpectedly fail
or, in the case of an accident, no longer
withstand the strain they are designed to.
If the underbody paneling is damaged,
combustible materials such as leaves,
grass or twigs can gather between the
underbody and the underbody paneling. If
these materials come in contact with hot
parts of the exhaust system for an
extended period, they can catch fire.
Have the vehicle checked and repaired
immediately ataqualified specialist
workshop. If on continuing your journey
you noticethat driving safety is impaired,
pull over and stop the vehicle immediately,
paying attention to road and traffic
conditions. In such cases, visitaqualified
specialist workshop.
Declarations of conformity
Vehicle components which receive
and/or transmit radio waves
USA:"The wireless devices of this vehicle
comply with Part 15 of the FCC Rules.
Operation is subject to the two following two
conditions: 1) These devices may not cause
harmful interference, and 2) These devices
must accept any interference received,
including interference that may cause
undesired operation. Changes or
modifications not expressly approved by the
party responsible for compliance could void
the user’s authority to operate the
equipment."
Canada:"The wireless devices of this vehicle
comply with Industry Canada license-exempt
RSS standard(s). Operation is subject to the
following two conditions: (1) These devices
may not cause interference, and (2) These
devices must accept any interference,
including interference that may cause
undesired operation of the device."
Diagnostics connection
The diagnostics connection is only intended
for the connection of diagnostic equipment at
aqualified specialist workshop.
GWARNING
If you connect equipment to the diagnostics
connection in the vehicle, it may affect the
operation of the vehicle systems. Asaresult,
the operating safety of the vehicle could be
affected. There isarisk of an accident.
Do not connect any equipment to a
diagnostics connection in the vehicle.
GWARNING
Objectsinthe driver's footwell can restrict the
pedal travel or obstructadepressed pedal.
The operatingand road safety of the vehicle
is jeopardized. There isarisk of an accident.
Make sure that all objects in the vehicle are
stowed correctly, and that they cannot enter
the driver's footwell. Install the floormats
securely and as specified in order to ensure
sufficientclearancefor the pedals. Do not use
loose floormats.
!If the engineisswitched off and
equipmentonthe diagnostics connection
is used, the starter battery may discharge.
Introduction25
Z

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

or if the front-passenger seat is classified as
being empty.
When the OCS senses that the front-
passenger seat occupant is classified as
being up to or less than the weight ofatypical
12-month-old child inastandard child
restraint,theindicator lamp will
illuminate when the engine is started and
remain illuminated, indicating that the front-
passenger front air bag is deactivated.
When the OCS senses that the front-
passenger seat is classified as being empty,
theindicator lamp will illuminate
when the engine is started and remain
illuminated, indicating that the front-
passenger front air bag is deactivated.
When the OCS senses that the front-
passenger seat occupant is classified as
being heavier than the weight ofatypical 12-
month-old child seated inastandardchild
restraint or as beingasmall individual (such
asayoung teenager orasmall adult), the
indicator lamp willilluminate for
approximately6seconds when the engine is
started and then,depending on occupant
weight sensor readings from the front-
passenger seat, remain illuminated or go out.
With theindicator lamp
illuminated, the front-passenger frontair bag
is deactivated. With theindicator
lamp out, the front-passengerfront air bag is
activated.
When the OCS senses that the front-
passenger seat occupant is classifiedasan
adult or someone larger thanasmall
individual, theindicator lamp will
illuminate for approximately6seconds when
the engine is started and then go out,
indicating that the front-passenger frontair
bag is activated.
If theindicator lamp is illuminated,
the front-passenger frontair bag and the
front-passenger knee bag are deactivated and
will not be deployed.
If theindicator lamp is not
illuminated, the front-passenger frontair bag
and the front-passengerknee bagare
activatedand will be deployed:
Rin the event of certain frontalimpacts
Rif impact exceedsapreset deployment
threshold
Rindependentlyofthe side impact airbag or
pelvis air bag
If thefront-passenger frontair bag is
deployed, therateofinflation will be
influenced by:
Rtherateofrelevantvehicle deceleration as
assessed by the air bag control unit
Rthe frontpassenger's weightcategoryas
identified by OCS
GWARNING
Accordingtoaccidentstatistics, childrenare
saferwhen properly restrained on the rear
seats than on the front-passenger seat. Thus,
we strongly recommendthat children be
placed in the rear seats whenever possible.
Regardless of seating position, children 12
years old and under must be seated and
properly secured in an appropriate infant
restraint,toddler restraint,orbooster seat
recommended for the size and weight of the
child.
The infant or child restraint must be properly
secured with the vehicle's seat belt, the seat
belt and Top Tether strap, or lower LATCH-
type (ISOFIX) child seat retaining loops and
Top Tether strap, fully in accordance with the
infant or child seat manufacturer's
instructions.
Occupants, especially children, should always
sit as upright as possible, wear the seat belt
properly and use an appropriately sized infant
restraint,toddler restraint,orbooster seat
recommended for the size and weight of the
child.
Children can be killed or seriously injured by
an inflating air bag.
48Occupant safety
Safety

Beltheight adjustment
Youcan adjustthe seat belt height on the
front seats. Adjust the belt toaheight that
allowsthe upper part of the seat belt to be
routed across the center of your shoulder.
XTo raise:slide the belt sash guide upwards.
The belt sash guide engages in various
positions.
XTo lower:press and hold belt sash guide
release.
XSlide the belt sash guide downwards.
XRelease belt sash guide releaseand
make sure that the belt sash guide has
engaged.
Releasing seat belts
!Make sure that the seat belt is fully rolled
up. Otherwise, the seat belt or belt tongue
will be trapped in the door or in the seat
mechanism. This could damage the door,
the door trim panel and the seat belt.
Damaged seat belts can no longer fulfill
their protective function and must be
replaced. Visitaqualified specialist
workshop.
XPress release button!on belt buckle$.
XGuidebelt tongueto belt sash
guide.
Belt warning for the driver and front
passenger
Regardless of whether the driver's and front-
passenger seat belts have already been
fastened, theseat belt warning lamp
lights up for six seconds each time the engine
is started. It then goes out if the driver and
the front passenger have already fastened
their seat belts.
If the driver's seat belt is not fastened when
the engine is started, an additional warning
tone will sound. This warning tone stops after
amaximum of six seconds or once the
driver's seat belt is fastened.
If after six seconds, the driver or front
passenger have not fastened their seat belts
and the doors are closed:
Rtheseat belt warning lamp remains lit
as long as the driver's or front-passenger's
seat belt is not fastened
and
Rifavehicle speed of 15 mph (25 km/h) is
exceeded, theseat belt warning lamp
begins to flash.Awarning tone also sounds
withincreasing intensityforamaximum of
58Occupant safety
Safety

GWARNING
If children are left unsupervised in the vehicle,
they could:
Ropen the doors, thus endangering other
people or road users.
Rget out and disrupt traffic.
Roperate the vehicle's equipment.
Additionally, children couldset the vehiclein
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission out of
park positionP
RStart the engine.
There isarisk of an accident and injury.
When leaving the vehicle, alwaystake the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
GWARNING
If persons, particularlychildren are subjected
to prolonged exposure to extreme heator
cold,there isariskofinjury,possiblyeven
fatal. Never leave children unattendedinthe
vehicle.
GWARNING
If the child restraint system is subjected to
direct sunlight, parts may get very hot.
Children mayburn themselves on these parts,
particularly on the metal parts of the child
restraint system. There isarisk of injury.
If you leave the vehicle, takingthe child with
you, alwaysensure that the child restraint
system is not exposed to direct sunlight.
Protectitwithablanket,for example. If the
child restraint system has been exposed to
direct sunlight, let it cool down before
securing the child in it. Never leave children
unattended in the vehicle.
If an infantorchild is traveling in the vehicle:
RSecure the child withachild or infant seat
restraint system appropriate to the age and
weight of the child.
RMake sure that the infant or child is
properly secured at all times while the
vehicle is in motion.
Mercedes-Benzrecommends that you always
properly secure all infants and children with
achild or infantseat restraint system for the
trip.
The use of seat belts and infantand child
restraint systemsisrequired by lawin:
Rall50states
Rthe U.S. territories
Rthe District of Columbia
RallCanadianprovinces
Infants and children must alwaysbeseated in
an appropriate infant or child restraint system
recommendedfor the size and weight of the
child.The infant or child restraint system
must be properly secured in accordance with
the manufacturer's instructions.
All infant or child restraint systems must meet
the following standards:
RU.S. Federal Motor Vehicle Safety
Standards 213 and 225
RCanadianMotor Vehicle Safety Standards
213 and 210.2
Confirmation that the child restraint system
corresponds to the standards can be found
on an instruction label on the child restraint
system. This confirmation can also be found
in the installation instructions that are
included with the child restraint system.
Always read and follow the manufacturer's
instructions when using an infant or child
restraint system or booster seat.
Observe the warning labels in the vehicle
interior or on the infant or child restraint.
62Children in the vehicle
Safety

Additionally, children could set the vehiclein
motion if, for example, they:
Rrelease the parking brake.
Rshifting the automatic transmission outof
park positionP
RStart the engine.
There isarisk of an accidentand injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children or animals unattended in the
vehicle. Always keep the SmartKey out of
reach of children.
GWARNING
If persons, particularly children are subjected
to prolonged exposure to extreme heat or
cold, thereisarisk of injury, possibly even
fatal. Never leave children unattended in the
vehicle.
GWARNING
If children are traveling in the vehicle, they
could:
Ropen doors, thus endangering other people
or road users
Rexit the vehicle and be caught by oncoming
traffic
Roperate vehicle equipment and become
trapped
There isarisk of an accidentand injury.
Always activate the child-proof locksand
override feature if children are traveling in the
vehicle. When leaving the vehicle, always take
the key with you and lock the vehicle. Never
leave children unattended in the vehicle.
You can activate the following child-proof
locks:
Rrear doors (Ypage 65)
Rrear side windows (Ypage 65)
Child-proof locks for the rear doors
GWARNING
Children could openarear door from inside
the vehicle. This could result in serious
injuries or an accident. Therefore, when
children ride in the rear always secure the rear
doors with the child-proof locks.
You secure each door individually with the
child-proof locksonthe rear doors.Adoor
secured withachild-proof lock cannot be
opened from inside the vehicle. When the
vehicle is unlocked, the door can be opened
from the outside.
XTo activate:press the child-proof lock
lever up in the direction of arrow.
XMake sure that the child-proof locks are
working properly.
XTo deactivate:press the child-proof lock
lever down in the direction of arrow.
Overridefeature for the rear side
windows
GWARNING
When children ride on the vehicle's rear seats,
activate the override switch. Otherwise, the
children could be injured, e.g. by trapping
themselves in the rear side window.
Children in the vehicle65
Safety
Z

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