Front seat MERCEDES-BENZ CLS-Class 2014 W218 User Guide

You should only use seat cover that have been
approved for your vehicle by Mercedes-Benz.
The seat covers must have aspecial tear
seam for side impact air bags. Otherwise, the
side impact air bags cannot deploy correctly
and therefore cannot provide the intended
protection in the even tofanaccident. Front side impact air bags
001Aand rear side
impact air bags 0010deploy nex ttothe outer
seat cushions.
When deployed, the side impact air bags offer
additional protection for the thorax of the
vehicle occupant sonthe side of the vehicle
on which the impact occurs. However, they
do not protec tthe:
R head
R neck
R arms
The side impact air bags are deployed:
R on the side on which an impact occurs
R at the start of an accident with ahigh rate
of lateral vehicle deceleration or
acceleration, e.g. in aside impact
R independently of the use of the seat belt
R independently of the front air bags
R independently of the ETDs
If the vehicle rolls over ,the side impact air
bags are generally not deployed. Side impact
air bags are deployed if the system detects
high vehicle deceleration or acceleration in a
lateral direction and determines that side
impact air bag deploymen tcan offer
additional protection to that provide dbythe
seat belt. Sid
eimpac tair bags will not deploy in side
impacts which do not exceed the system's
prese tdeployment thresholds for lateral
acceleration/deceleration .You will then be
protected by the fastened seat belt.
The side impact air bag on the front-
passenger side is not deployed in the
following situations:
R OCS has detected that the front-passenger
seat is unoccupied.
R the front-passenger seat belt is not
fastened.
The side impact air bag on the front-
passenger side will deploy if the front-
passenger seat belt is fastened, regardless of
whether the front-passenger seat is occupied
or not.
Pelvis air bags G
WARNING
Only use seat covers which have been tested
and approved by Mercedes-Benz for your
vehicle model. Using seat covers or other seat
coverings can cause amalfunction of the side
impact air bags and/or the pelvis air bags.
Contact an authorized Mercedes-Benz Center
for availability. Pelvis air bags
001Aenhanc ethe level of
protection of the vehicle occupant sonthe
side of the vehicle on which the impact
occurs. 46
Occupant safetySafety

The pelvis air bags deploy next to and below
the outer seat cushions. They are deployed:
R on the side on which an impact occurs
R at the start of an accident with ahigh rate
of lateral vehicle deceleration or
acceleration ,e.g. in aside impact
R independently of the use of the seat belt
R independently of the front air bags
R independently of the ETDs
If the vehicle rolls over ,the pelvis air bags are
generally not deployed. Exception: if the
system detect shigh vehicle deceleration or
acceleration in alateral direction and
determines that deploymen tcan offer
additional protection to that provide dbythe
seat belt.
Pelvis air bags 001Awill no tdeploy in side
impacts which do not exceed the system's
preset deployment thresholds for lateral
acceleration/deceleration .You will then be
protected by the fastened seat belt.
The pelvis air bag on the front-passenger side
is not deployed in the following situations:
R OCS has detected that the front-passenger
seat is unoccupied.
R the front-passenger seat belt is not
fastened.
The pelvis air bag on the front-passenger side
will deploy if the front-passenger seat belt is
fastened, regardless of whether the front-
passenger seat is occupied or not.
Window curtain air bags Window curtain air bags
001Aenhanc ethe level
of protection for the head, but not chest or
arms, of the vehicle occupant sonthe side of
the vehicle on which the impact occurs.
The window curtain air bags are integrated
into the side of the roof frame and deploy in
the area from the A-pillar to the C-pillar.
Window curtain air bags are deployed:
R at the start of an accident with ahigh rate
of lateral vehicle deceleration or
acceleration, e.g. in aside impact
R on the side on which an impac toccurs
R on the driver' ssidea nd passenger side, in
the event of avehicl erollover and if the
system determine sthat ai rbag deployment
can offer th evehicle occupants additional
protection to that provide dbytheseat belt
R independently of th euse of th eseat belt
R regardless of whether th efront-pa ssenger
seat is occupied
R independently of th efront air bags
Windo wcurtain air bags 001Awill not deploy in
the even tofimpacts which do not exceed the
system' sprese tdeployment thresholds for
vehicle acceleration/deceleration. You will
then be protected by the fastened seat belt. Occupant Classification System
(OCS)
Method of operation G
WARNING
If the 000F000B indicator lamp illuminates
when an adult or someone larger than asmall
individual is in the front-passenger seat, have
the front passenger reposition himself or
herself in the seat until the 000F000B
indicator lamp goes out.
In the event of acollision, the air bag control
unit will not allow front-passenger front air
bag deployment when the OCS has classified
the front-passenger seat occupant as
weighing as much as or less than atypical 12-
month-old child in astandard child restraint Occupant safety
47Safety
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 of atypical
12-month-old child in astandard child
restraint ,the 000F000B indicator 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,
the 000F000B indicator 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 of atypical 12-
month-old child seated in astandar dchild
restraint or as being asmall individual (such
as ayoung teenager or asmall adult), the
000F000B indicator lamp willi lluminate for
approximatel y6seconds when the engine is
started and then ,depending on occupant
weight sensor readings from the front-
passenger seat, remain illuminated or go out.
With the 000F000B indicator lamp
illuminated, the front-passenger fron tair bag
is deactivated. With the 000F000Bindicator
lamp out, the front-passenge rfront air bag is
activated.
When the OCS senses that the front-
passenger seat occupant is classifie dasan
adult or someone larger than asmall
individual, the 000F000Bindicator lamp will
illuminate for approximatel y6seconds when
the engine is started and then go out,
indicating that the front-passenger fron tair
bag is activated.
If the 000F000B indicator lamp is illuminated,
the front-passenger fron tair bag and the
front-passenger knee bag are deactivated and
will not be deployed. If the
000F000B indicator lamp is not
illuminated, the front-passenger fron tair bag
and the front-passenge rknee ba gare
activate dand will be deployed:
R in the event of certain fronta limpacts
R if impact exceed sapreset deployment
threshold
R independentl yofthe side impact ai rbag or
pelvis air bag
If th efront-pa ssenger fron tair bag is
deployed, th erateofi nflation will be
influenced by:
R ther ateofr elevan tvehicle deceleration as
assessed by the air bag control unit
R the fron tpassenger's weigh tcategor yas
identified by OCS G
WARNING
Accordin gtoacciden tstatistics, childre nare
safe rwhen properly restrained on the rear
seats than on the front-passenger seat. Thus,
we strongly recommendt hat 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,t oddler restraint,orb ooster 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,t oddler restraint,orb ooster seat
recommended for the size and weight of the
child.
Children can be killed or seriously injured by
an inflating air bag. 48
Occupant safetySafety

Note the following important information if it
is necessary to carry achild on the front-
passenger seat:
R Your vehicle is equipped with air bag
technology designed to deactivate the
front-passenger front air bag and the front-
passenger knee bag in yourv ehicle when
the system senses the weight of atypical
12-month-old child or less along with the
weight of astandar dappropriate child
restraint on the front-passenger seat.
R Ac hild in arear-facing child restraint on the
front-passenger seat will be seriously
injured or even killed if the front-passenger
front air bag inflates in acollision 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 place achild
in ar ear-facing child restraint in the front-
passenger seat. We therefore strongly
recommendt hat you always place achild
in ar ear-facing child restraint on the rear
seat.
R If you install arear-facing child restraint on
the front-passenger seat, make sure the
000F000B indicator lamp is illuminated,
indicating that the front-passenger front air
bag and front-passenger knee bag are
deactivated. Should the 000F000B
indicator lamp not illuminate or go out while
the restraint is installed, please check
installation. Periodicall ycheck the
000F000B indicator lamp while driving to
make sure that the 000F000Bindicator
lamp is illuminated. If the 000F000B
indicator lamp goes out or remains out, do
not transport achild on the front-passenger
seat until the system has been repaired.
Ac hild in arear-facing child restraint on the
front-passenger seat could be seriously
injured or even killed if the front-passenger
front air bag is deployed. R
If you place achild in aforward-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
R For 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. G
WARNING
If the red 0012SRS warning lamp in the
instrumentc luster and the 000F000B
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-Ben zCenter.
Only have the seat repaired or replaced at an
authorized Mercedes-Ben zCenter.
In order to ensure proper operation of the air
bag system and OCS:
R Sit with the seat belt properly fastened in a
position that is as upright as possible with
your back against the seat backrest.
R When seated, apassenger should not
position him/herself in such away as to
cause the passenger' sweight to be lifted
from the seat cushion as this may result in
the OCS being unable to correctly
approximat ethe passenger' sweight
category.
R Read and observe all warnings in this
chapter. Occupant safety
49Safety Z

If the SmartKey is removed from the ignition
lock or is in position 0,PASSENGER AIR BAG
OFF indicator lamp 001Adoes not light up.
The Occupant Classification System (OCS)
categorize sthe occupant on the front-
passenge rseat using aweight 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 using aweight 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:
R the side impact air bag
R the pelvis air bag
R the window curtain air bag
R the Emergency Tensioning Devices
To be classified correctly, the front passenger
must sit:
R with the seat belt fastened correctly
R in ap osition that is as upright as possible
with their back against the seat backrest
R with 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
displaym essages that can be displayed in the
instrumentc luster (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:
R is empty or occupied by the weight of a
typical child up to twelve months old,
seated in achild restraint system
R is occupied by asmall individual, such as a
young teenager or asmall adult
R is occupied by achild in achild restraint
system whose weight is greater than that
of at ypical twelve montho ld 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" (Y page 244).
System self-test G
WARNING
If the 000F000Bindicator lamp does not
illuminate, the system is not functioning. You
must contac tanauthorized Mercedes-Benz 50
Occupant safetySafety

Cente
rbefore seating any child on the front
passenger seat. G
WARNING
Objects between the seat surface and the
child restraint system could affect the
function of the OCS. This could result in the
front-passenger fron tair bag not functioning
as intended during an accident. This poses an
increased risk of injury or even fatal injury.
Do not place any objects between the seat
surface and the child restraint system. Make
sure that the bottom and back of the child
restraint system make full contact with the
front-passenger seat cushion and backrest.
Always comply with the child restraint system
manufacturer's installation instructions.
The PASSENGER AIR BAG OFF indicator lamp
lights up:
R if you turn the SmartKey in the ignition lock
to position 1or 2
R if you press the KEYLESS-GO Start/Stop
button onceort wice on vehicles with
KEYLESS-GO
R if an adult is seated properly on the front-
passenger seat and the OCS classifies the
occupant as an adult
The PASSENGER AIR BAG OFF indicator
lamp goes out again after approximately six
seconds.
If the seat is not occupied and the OCS
system detects that the front-passenger
seat is empty, the PASSENGER AIR BAG
OFF indicator lamp will continue to light up.
The PASSENGER AIR BAG OFF indicator
lamp will not go out.
For more information about the OCS, see
"Problems with the Occupant Classification
System "(Ypage 52). Occupant safety
51Safety Z

Problems with the Occupant Classification System
G
WARNING
If the 000F000B indicator lamp illuminates and remains illuminated when the weight of atypical
adult or someone larger than asmall individual has been detected on the passenger seat, do not
allow any occupant to use the passenger seat until the system has been repaired. G
WARNING
If the 000F000B indicator lamp does not illuminate or remains out with the weight of atypical
12-month-old child in astandard child restraint or less, or is unoccupied, on the front-passenger
seat, do not transport achild on the front-passenger seat until the system has been repaired. Problem Possiblec
auses/consequencesa nd000B Solutions
The PASSENGER AIR
BAG OFF indicator
lights up and remains
on.
The person on the
front-passenger seat:
R
has the weight of a
typical adult
R has been determined
by the system not to
be achild The COS is malfunctioning.
X
Make sure that the front passenger is sitting in acorrect ,upright
position.
X Have the COS checked as soon as possible at aqualified
specialist workshop.
X Observe the additional displaym essages in the multifunction
display( Ypage 244). 52
Occupant safetySafety

Problem Possible causes/consequences and
000B Solutions
The PASSENGER AIR
BAG OFF indicator
lamp does not light up
and/or does not stay
on.
The front-passenger
seat is:
R
unoccupied
R occupied with the
weight of achild up
to twelve months old
in ac hild restraint
system The COS is malfunctioning.
X
Make sure there is nothingb etween the seat cushion and the
child seat.
X Make sure that the backrest and base of the child restraint
system rest on the front-passenger seat. If necessary, adjust
the position of the front-passenger seat.
X When installing the child restraint system, make sure that the
seat belt is tight. Do not pull the seat belt tight with the front-
passenger seat adjustment .This could result in the seat belt
being pulledt oo tightly.
X Check the installation of the child restraint system.
X Make sure that no objectsa re applying additionalweight onto
the seat.
X If the PASSENGER AIR BAG OFF indicator lamp remains off, have
the COS checked immediatel yataqualified specialist
workshop. Do not transport achild on the front-passenger seat
until the COS has been repaired.
X Observ ethe additional display messages in the multifunction
display ( Ypage 244). NECK-PRO head restraints/NECK-
PRO luxur
yhead restraints
Importan tsafet ynotes G
WARNING
The function of the head restraint may be
impaired if you:
R attach objects such as coat hangers to the
head restraints, for example
R use head restraint covers
If you do so, the head restraint scannot fulfill
their intended protective function in the event
of an accident. In addition, objects attached
to the head restraint scould endanger other
vehicle occupants. There is an increased risk
of injury.
Do not attach any objects to the head
restraint sand do not use head restraint
covers.
NECK-PRO head restraints/NECK-PRO luxury
head restraint sincrease protection of the driver'
sand front-passenger's head and
neck. In the event of arear collision of a
certain severity, the NECK-PRO head
restraints/NECK-PRO luxury head restraints
on the driver' sand the front-passenger seats
are moved forwards and upwards. This
provides better head support.
If the NECK-PRO head restraints/NECK-PRO
luxury head restraint shave been triggered in
an accident, reset the NECK-PRO head
restraints/NECK-PRO luxury head restraints
on the driver' sand front-passenger seats
(Y page 54). Otherwise, the additional
protection will not be available in the event of
another rear-end collision. NECK-PRO head
restraints/NECK-PRO luxury head restraints
that have been triggered are moved forwards
and can no longer be adjusted.
Mercedes-Benz recommends that you have
the NECK-PRO head restraints/NECK-PRO
luxury head restraint schecked at aqualified
specialist workshop after arear-end collision. Occupant safety
53Safety Z

Resetting triggere
dNECK-PR Ohead
restraints/NECK-PR Oluxur yhead
restraints NECK-PR
Oheadr estraints NECK-PRO head restraints
X
Tilt th etop of th eNECK-PRO head restraint
cushion forwards in th edirection of
arrow 001A.
X Push th eNECK-PRO head restraint cushion
down in th edirection of arrow 0010as far as
it will go.
X Wit hyour han dflat,firmly push th eNECK-
PRO head restraint cushion backwards in
th ed irection of arrow 0024until it engages.
X Repeat this procedure for th esecond
NECK-PRO head restraint.
NECK-PR Oluxur yheadr estraints NECK-PRO luxur
yhead restraints
X Remov eresettin gtool 001Afrom th evehicle
documen twallet.
X Slid eresettin gtool 001Aintog uide 0010
between th eNECK-PRO luxur yhead restraint and th
erear cover of th ehead
restraint.
X Push resettin gtool 001Adownwards until you
hear th ehead restraint deployment
mechanism engage.
X Pull out resettin gtool 001A.
X Wit hyour han dflat,firmly push th eNECK-
PRO luxur yhead restraint cushion
backwards in th edirection of arrow 0024until
it engages.
X Repeat this procedure for th esecond
NECK-PRO luxur yhead restraint.
X Put resettin gtool 001Aback int othe vehicle
documen twallet.
i If you have difficult yresettin gthe NECK-
PRO luxur yhead restraints, have this work
carried out at aqualified specialist
workshop. PRE-SAFE
®
(anticipator yoccupant
protection system)
! Mak esure that there are no object sinthe
footwell or behin dthe seat swhen resetting
the seats. There is arisk that the seats
and/or the objectsc ould be damaged.
PRE-SAFE ®
takes preemptive measures to
protect occupants in certain hazardous
situations. Despite your vehicle being
equipped with the PRE-SAFE ®
system, the
possibility of personal injuries occurring as a
result of an accident cannot be eliminated.
Always adapt your driving style to suit the
prevailing road and weather conditionsa nd
maintain asafe distance from the vehicle in
front.D rive carefully.
PRE-SAFE ®
intervenes:
R if BAS intervenes, e.g. in emergency
braking situations.
R if BAS PLUS intervenes powerfully—on
vehicles with DISTRONIC PLUS. 54
Occupant safetySafety

R
if, on vehicles with DISTRONIC PLUS ,the
radar sensor system detect sanimminent
dange rofcollision in certain situations.
R in critical driving situations, e.g. when
physical limits are exceeded and the
vehicle understeers or oversteers severely.
PRE-SAFE ®
takes the following measures
depending on the hazardous situation
detected:
R the front seat belts are pre-tensioned.
R the front-passenger seat is adjusted if it is
in an unfavorable position.
R vehicles with amulticontour seat or active
multicontour seat: the air pressure in the
side bolsters of the seat cushion and
backrest is increased.
R if the vehicle skids, the 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 pre-tensioning. The air pressure in
the side bolsters on the multicontour seat/
active multicontour seat is reduced again. All
settings made by PRE-SAFE ®
can then be
reversed.
If the seat belts are not released:
X When the vehicle is stationary, move the
backrest or seat back slightly.
The seat belt pre-tensionin gisreduced and
the lockin gmechanism is released.
Information about seat belt adjustment, a
convenienc efunction integrated into PRE-
SAFE ®
,c an be found in the "Seat belt
adjustment" section (Y page 57).Seat belts
Important safety notes G
WARNING
The seat belt does not offer the intended level
of protection if the backrest is not in the
upright position. When braking or in the event of an accident
,you could slide underneath the
seat belt and sustain abdomen or neck
injuries, for example. This poses an increased
risk of injury or even fatal injury.
Adjust the seat properly before beginning
your journey. Always make sure that the seat
is in the upright position. G
WARNING
Seat belts cannot protect as intended, if:
R they are damaged, extremely dirty,
bleached or dyed
R the seat belt buckle is damaged or
extremely dirty
R the Emergency Tensionin gDevices or the
belt anchorage has been modified.
Damage caused to seat belts in an accident
may not be visible, e.g. by splinters of glass.
Modified or damaged seat belts can tear or
fail, for example in the event of an accident.
Modified Emergency Tensionin gDevices may
be deployed unintentionally or fail to be
deployed when required. There is an
increased risk of injury, possibly even fatal.
Never modify seat belts, Emergency
Tensionin gDevices, seat belt anchorages and
inertia reels. Ensure that seat belts are not
damaged or worn and are clean.
Only use seat belts that have been approved
for your vehicle by Mercedes-Benz.
The use of seat belts and infant and child
restraint systems is required by law in:
R all 50 states
R the U.S. territories
R the District of Columbia
R all Canadia nprovinces
Even where this is not required by law,a ll
vehicl eoccupants should correctly fasten
their seat belts before starting the journey.
i See "Children in the vehicle"
(Y page6 0) for further information on
infants and children traveling in the vehicle
as wellasonc hild restraint systems. Occupant safety
55Safety Z