2018 MERCEDES-BENZ CLA child restraint

as far back as possible. Alternatively, ap er-
son of smaller statur ec an sit on ar ear seat.-
If th eP ASSENG ER AI RB AG OF Fi ndicator
lamp is lit ,ap erson of smaller stature
shoul dn ot use th ef ront-pa ssenger seat.R
The front-passenger seat is occupied by an
adult or ap erson of adult stature, the
PASSENGER AI RB AG OF Fi ndicator lamp
goes out after th es ystem self-test .T his indi-
cates that th ef ront-pa ssenger fron ta ir bag is
activated.
If childre na re travelin gint he vehicle ,bes ure to
observ et he note son" Children in th ev ehicle"
( Y
page 54).
When th eO cc upan tC lassification System
(OCS )ism alfunctioning, th er ed u restraint
system warning lamp on th ei nstrumen tc luster
and th eP ASSENG ER AI RB AG OF Fi ndicator
lamp light up simultaneously. The front-
passenger fron ta ir bag is deactivate dint hi s
cas ea nd does no td eplo yd urin gana ccident.
Hav et he Occupan tC lassification System (OCS)
checked and repaired immediately at aq ualified
specialist workshop .M ercedes-Ben zr ecom-
mends that you use an authorized Mercedes-
Ben zC enter for this purpose.
If th ef ront-pa ssenger seat ,t he seat cover or the
seat cushion are damaged, have th en ecessary
repai rw ork carried out at aq ualified specialist
workshop .M ercedes-Ben zr ecommend st ha t
you use an authorized Mercedes-Ben zC en ter
f or this purpose.
For safety reasons, Mercedes-Ben zr ecom-
mends that you only use seat accessories that
have been approved by Mercedes-Benz.
If th ed river' sa ir bag deploys, this does not
mean that th ef ront-pa ssenger fron ta ir bag will
also deploy. The Occupan tC lassification Sys-
te m( OCS )c ategorize st he occupant on the
front-passenger seat .D ep endin gont ha tr esult,
th ef ront-pa ssenger fron ta ir bag is either ena-
bled or deactivated.
System self-test
G DANGER
If bot ht he PASSENGER AI RB AG OF Fa nd
PASSENGER AI RB AG ON indicator lamps do
no tl ight up durin gt he system self-test ,t he
system is malfunctioning. The front-
passenger fron ta ir bag migh tbet ri ggered
unintentionally or migh tn ot be triggered at all in th ee ven tofana cciden tw ith high deceler-
ation. This pose sani ncreased risk of injury or
even fatal injury.
In this cas et he front-passenger seat may not
be used. Do no ti nstall ac hi ld restraint system
on th ef ront-pa ssenger seat .H av et he Occu-
pant Classification System (OCS )c he cked
and repaired immediately at aq ualified spe-
cialis tw orkshop.
G WARNING
If th eP ASSENG ER AI RB AG OF Fi ndicator
lamp remains lit after th es ystem self-test ,t he
front-passenger fron ta ir bag is disabled. It will
no tbed eployed in th ee ven tofana ccident. In
this case, th ef ront-pa ssenger fron ta ir bag
canno tp erform its intended protective func-
tion, e.g .w hen ap erson is seated in th ef ront -
passenger seat.
That person could, for example, com ei nto
contac tw ith th ev ehicle's interior, especially
if th ep erson is sittin gt oo close to th ed ash-
board .T his pose sani ncreased risk of injury or
even fatal injury.
When th ef ront-pa ssenger seat is occupied,
always ensure that: R
th ec lassification of th ep erson in th ef ront -
passenger seat is correc ta nd th ef ront -
passenger fron ta ir bag is enabled or disa-
bled in accordance with th ep erson in the
front-passenger seat R
th ep erson is seated properly with ac or-
rectly fastene ds eatbelt R
th ef ront-pa ssenger seat has been moved
as far back as possible
If th eP ASSENG ER AI RB AG OF Fi ndicator
lamp remains lit when it shoul dn ot ,t he front-
passenger seat may no tbeu sed. Do not
install ac hi ld restraint system on th ef ront -
passenger seat .H av et he Occupan tC lassifi-
cation System (OCS )c he cked and repaired
immediately at aq ualified specialist work-
shop.50
Occupant safety
Safety

G WARNING
Objects between the seat surface and the
child restraint system coul da ffect OCS oper-
ation. This coul dr esult in the front-passenger
air 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. The
entire base of the child restraint system must
alway sr est on the seat cushion of the front-
passenger seat. The backrest of the forward-
facing child restraint system must, as far as
possible ,ber esting on the backrest of the
front-passenge rs eat. Always comply with the
child restraint system manufacturer's instal-
lation instructions. After the system self-test, the PASSENGER AIR
BAG OFF or PASSENGER AIR BAG ON indicator
lamp display st he status of the front-passenger
front air bag ( Y
pag e4 8). If the front-passenger
front air bag is enabled, the PASSENGER AIR
BAG ON indicator lamp lights up for 60 seconds
and then goes out.
If the PASSENGER AIR BAG ON indicator lamp is
off, only the PASSENGER AIR BAG OFF indicator
lamp show st he status of the front-passenger
front air bag .T he PASSENGER AIR BAG OFF
indicator lamp may be lit continuously or be off.
For more information about the OCS, see "Prob-
lems with the Occupant Classification System"
( Y
pag e5 1).
Problems with the Occupant Classificatio nS ystem (OCS)Be sure to observe the notes on "System self-test" ( Y
pag e5 0).Occupant safety 51
Safety Z

Problem
Possible causes/consequences and P Solutions
The PASSENGER AIR
BAG OFF indicator lamp
lights up and remains lit,
even though the front-
passenger seat is occu-
pied by an adult or ap er-
son of as tature corre-
sponding to that of an
adult. The classification of the person on the front-passenger seat is incor-
rect. X
Make sure the condition sf or ac orrect classification of the person
on the front-passenger seat are met ( Y
page 48).X
If the PASSENGER AIR BAG OFF indicator lamp remains lit, the front-
passenger seat may not be used. X
Have OCS checked as soon as possible at an authorized Mercedes-
Benz Center.
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 ac hild up to
twelve months old in a
child restraint system OCS is malfunctioning. X
Make sure there is nothin gb etween the seat cushion and the child
seat. X
Make sure that the entire base of the child restraint system rests on
the seat cushion of the front-passenger seat. The backrest of the
forward-facing child restraint system must lie as flat as possible
against the backrest of the front-passenger seat. If necessary,
adjust the position of the front-passenger seat. X
Make sure that the seat cushion length is fully retracted. X
When installing the child restraint system, make sure that the seat
belt is tight. Do not pull the seat belt tight using the front-passenger
seat adjustment .T his could result in the seat belt and the child
restraint system being pulled too tightly. X
Check for correct installation of the child restraint system.
Make sure that the head restraint does not apply al oad to the child
restraint system. If necessary, adjust the head restraint accord-
ingly. X
Make sure that no object sa re applying additional weight onto the
seat. X
If the PASSENGER AIR BAG OFF indicator lamp remains off and/or
the PASSENGER AIR BAG ON indicator lamp lights up, do not install
ac hild restraint system on the front-passenger seat. It is recom-
mended that you install the child restraint system on as uitable rear
seat. X
Have OCS checked as soon as possible at an authorized Mercedes-
Benz Center.
Deployment of Emergency Tensioning
Devices and air bags
Important safety notes
G WARNING
The air bag parts are hot after an air bag has
been deployed. There is ar isk of injury.
Do not touch the air bag parts. Have a
deploye da ir bag replaced at aq ualified spe-
cialist workshop as soon as possible. G WARNING
Ad eploye da ir bag no longer offers any pro-
tection and cannot provide the intended pro-
tection in an accident. There is an increased
risk of injury.
Have the vehicle towed to aq ualified special-
ist workshop in order to have ad eploye da ir
bag replaced.
It is important for your safety and that of your
passenger to have deploye da ir bags replaced52
Occupant safety
Safety

sive role in the deployment of an air bag. Nor do
they provide an indication of air bag deploy-
ment.
The vehicle can be deformed considerably, with-
out an air bag being deployed. This is the case if
only parts which are relatively easil yd eformed
are affected and the rate of deceleration is not
high. Conversely, air bags may be deployed even
though the vehicle suffers only minor deforma-
tion. This is the case if, for example, very rigid
vehicle parts such as longitudinal body mem-
bers are hit, and sufficient deceleration occurs
as ar esult.
If the restraint system control unit detects as ide
impact or if the vehicle rolls over, the applicable
component soft he restraint system are activa-
ted independently of each other depending on
the apparent type of accident. R
Side impact air bags on the side where the
impact takes place, independently of the
Emergenc yT ensioning Device and the use of
the seat belt on the driver's seat and outer
seats in the second row
The side impact air bag on the front-
passenger side deploy su nder the following
conditions: -
the OCS system detects that the front-
passenger seat is occupied or -
the seat belt buckle tongue is engaged in
the belt buckle of the front-passenger seat R
Window curtain air bag on the side of impact,
independently of the use of the seat belt and
independently of whether the front-
passenger seat is occupied R
Emergenc yT ensioning Devices, if the system
determines that deployment can offer addi-
tional protection in this situation R
Window curtain air bags on the driver's and
front-passenger side in certain situations
when the vehicle rolls over, if the system
determines that deployment can offer addi-
tional protection to that provided by the seat
belt
i Not all air bags are deployed in an accident.
The different air bag systems work independ-
ently of each other. How the air bag system works is determined
by the severity of the accident detected,
especially the vehicle deceleration or accel-
eration and the apparent type of accident: R
Frontal collision R
Side impact R
Rollover
Automatic measures after an acci-
dent Immediately after an accident, the following
measures are implemented, depending on the
type and severity of the impact: R
the hazard warning lamps are activated R
the emergency lighting is activated R
the vehicle doors are unlocked R
the front side windows are lowered R
the engine is switched off and the fuel supply
is cut off R
vehicles with mbrace: automatic emergency
call
Children in the vehicle
Important safety notes Accident statistics show that children secured
in the rear seats are safer than children secured
in the front-passenger seat. For this reason,
Mercedes-Benz strongly advises that you install
ac hild restraint system on ar ear seat. Children
are generally better protected there.
If ac hild younger than twelve years old and
under 5ft( 1.50 m) in height is traveling in the
vehicle: R
always secure the child in ac hild restraint
system suitable for Mercedes-Benz vehicles.
The child restraint system must be appropri-
ate to the age, weight and size of the child R
be sure to observe the instructions and safety
notes in this section in addition to the child
restraint system manufacturer's installation
instructions R
be sure to observe the instructions and safety
notes on the "Occupant classification system
(OCS)" ( Y
page 47)54
Children in the vehicle
Safety

G WARNING
If you leave children unsupervised in the vehi-
cle, they coul ds et it in motion by, for example:R
release the parking brake. R
shift the automatic transmission out of the
parking position P .R
start the engine.
In addition, they may operate vehicl ee quip-
ment and become trapped. There is ar isk of
an accident and injury.
When leaving the vehicle, alway st ake the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
G WARNING
If persons, particularl yc hildren are subjected
to prolonged exposure to extreme hea to r
cold, there is ar isk of injury ,p ossibly even
fatal .N ever leave children unattended in the
vehicle.
G WARNING
If the child restraint system is subjected to
direct sunlight, parts may get very hot. Chil-
dren may burn themselves on these parts,
particularl yont he metal parts of the child
restraint system. There is ar isk of injury.
If you leave the vehicle, taking the child with
you ,a lway se nsure that the child restraint
system is not expose dtod irect sunlight. Pro-
tect it with ab lanket, for example. If the child
restraint system has been expose dtod irect
sunlight, let it cool dow nb efore securing the
child in it. Never leave children unattended in
the vehicle.
Always ensure that all vehicl eo ccupants have
their seat belts fastened correctly and are sitting
properly .P articular attention must be pai dt o
children.
Observe the safety notes on the seat belt
( Y
pag e4 2) and the notes on correct use of seat
belts ( Y
pag e4 3).
Ab ooster seat may be necessary to achieve
prope rs eat bel tp ositioning for children over
41 lbs (18 kg )u ntil they reach ah eight where a three-point seat bel tc an be properly fastened
without ab ooster seat.
Special seatbelt retractor
G WARNING
If the seat bel tisr eleased while driving, the
child restraint system wil lnol onger be
secure dp roperly .T he special seat bel tr etrac-
tor is disable da nd the inertia real draw sina
portion of the seat belt. The seat bel tc annot
be immediatel yr efastened. There is an
increased risk of injury ,p ossibly even fatal.
Stop the vehicl ei mmediately, paying atten-
tion to road and traffic conditions. Reactivate
the special seat bel tr etractor and secure the
child restraint system properly.
All seat belts in the vehicle, except the driver's
seat belt, are equipped with as pecial seat belt
retractor. When activated, the special seat belt
retractor ensure st hat the seat bel tc annot
slacken once the child seat is secured.
Installing ac hild restraint system: X
Make sure you observe the child restraint
system manufacturer's installation instruc-
tions. X
Pul lt he seat bel ts moothly from the bel to ut-
let. X
Engage seat bel tt ongue in bel tb uckle.
Activating the special seat bel tr etractor:X
Pul lt he seat bel to ut full ya nd let the inertia
reel retract it again.
Whil et he seat bel tisr etracting, you should
hear ar atcheting sound .T he special seat belt
retractor is enabled. X
Push the child restraint system dow nsot hat
the seat bel tist ight and does not loosen.
Removing the child restraint system and deac-
tivating the special seat bel tr etractor:X
Make sure you observe the child restraint
system manufacturer's installation instruc-
tions. X
Press the release button of the seat belt
buckle and guide the seat bel tt ongue back
toward st he bel ts ash guide.
The special seat bel tr etractor is deactivated.Children in the vehicle 55
Safety Z

Child restraint system The use of seat belt sa nd child restraint systems
is required by law in: R
all 50 states R
th eU .S .t erri toriesR
th eD istrict of ColumbiaR
all Canadian provinces
If you install ar earward-facing child restraint
system on th ec ente rr ear seat ,t he rear arm rest
must be folded back as far as possible.
You can obtain further informatio na bout the
correc tc hi ld restraint system from any author-
ize dM ercedes-Ben zC enter.
G WARNING
If th ec hi ld restraint system is installed incor-
rectly on as uitable seat ,itc anno tp rotect as
intended. The child canno tt he nber estrained
in th ee vent of an accident, heav yb raking or
sudde nc ha nges of direction .T her eisa n
increased ris kofi njury, possibly eve nf atal.
Mak es ure that you observ et he child restraint
system manufacturer' si nstallatio ni nstruc-
tions and th en otes on use. Pleas ee ns ure,
that th eb ase of th ec hi ld restraint system is
always restin gc ompletely on th es eat cush-
ion .N ever plac eo bjects, e.g .c ushions, under
or behin dt he child restraint system. Only use
child restraint systems wit ht he original cover
designe df or them. Only replace damaged
covers wit hg enuine covers.
G WARNING
If th ec hi ld restraint system is installed incor-
rectly or is no ts ecured, it can com el oos ei n
th ee vent of an accident, heav yb raking or a
sudde nc ha ng eind irection .T he child
restraint system coul dbet hr own about ,s tr ik-
ing vehicle occupants. Ther eisani ncreased
ris kofi njury, possibly eve nf atal.
Always install child restraint systems prop-
erly, eve nift he ya re no tb ein gu sed. Make
sure that you observ et he child restraint sys-
te mm anufacturer' si nstallatio ni nstructions.
You will fin df urther informatio nons to wing
objects, luggag eorl oads unde r" Loading guide-
lines" ( Y
page 237). G WARNING
Child restraint systems or their securin gs ys-
tems whic hh ave been damaged or subjected
to al oad in an acciden tc an no longer protect
as intended. The child canno tt he nb e
restraine dint he event of an accident, heavy
braking or sudde nc ha nges of direction .T here
is an increased ris kofi njury, possibly even
fatal.
Replac ec hi ld restraint systems whic hh ave
been damaged or subjected to al oad in an
acciden tass oon as possible. Hav et he secur-
ing systems on th ec hi ld restraint system
checked at aq ualified specialist workshop,
before you install ac hi ld restraint system
again.
The securin gs ystems of child restraint systems
are: R
th es eat belt system R
th eL AT CH-type (ISOFIX) securin gr ingsR
th eT op Tether anchorages
If it is absolutely necessary to carry ac hi ld on
th ef ront-pa ssenger seat ,bes ure to observ et he
informatio nont he "Occupan tC lassification
Syste m( OCS)" ( Y
page 47) .T her ey ou will also
fin di nformatio nond eactivatin gt he front-
passenger fron ta ir bag.
All child restraint systems must mee tt he fol-
lowin gs ta ndards: R
U.S. Federal Motor Vehicle Safet yS ta ndards
21 3a nd 225 R
Canadian Motor Vehicle Safet yS ta ndards
21 3a nd 210.2
Confirmation that th ec hi ld restraint system cor-
responds to th es ta ndards can be foun dona n
ins truc tion label on th ec hi ld
restraint system.
This confirmation can also be foun dint he instal-
lation instruction st ha ta re included wit ht he
child restraint system.
Observ et he warning labels in th ev ehicle inte-
rior and on th ec hi ld restraint system.56
Children in th ev ehicle
Safety

LATCH-typ e( ISOFIX) child seat secur-
ing system
G WARNING
LATCH-type (ISOFIX) child restraint systems
do not offer sufficient protection for children
whose weight combine dw ith th ec hild
restraint system is greater than 65 lbs (29 kg)
and who are secured usin gt he safety belt
integrated in th ec hild restraint system. In the
even tofana ccident, ac hild migh tn ot be
restrained correctly. This poses an increased
risk of injury or even fatal injury.
If th ec hild and th ec hild restraint system
together weigh mor et ha n65l bs (29 kg), only
use LATCH-type (ISOFIX) child restraint sys-
tem sw ith whic ht he child is also secured with
th ev ehicle seat belt .A ls os ecure th ec hild
restraint system with th eT op Tether belt ,i f
available.
Always comply with th em anufacturer' si nstal-
latio na nd operatin gi nstruction sf or th ec hild
restraint system used.
Before ever yt ri p, mak es ure that th eL AT CH-
type (ISOFIX) child restraint system is engaged
correctly in bot hL AT CH-type (ISOFIX) securing
rings
! When installing th ec hild restraint system,
mak es ure that th es eat belt for th em iddle
seat does not get trapped. The seat belt could
otherwise be damaged.
X
Install th eL AT CH-type (ISOFIX) child restraint
system on bot hL AT CH-type (ISOFIX) securing
rings C .
ISOFI Xisas ta ndardized securin gs ystem for
specially designed child restraint systems on
th er ear seats. LATCH-type (ISOFIX) securing rings for two LATCH-type (ISOFIX) child restraint
systems are installe dont he left and righ toft he
rear seats.
Non-LATCH-type (ISOFIX) child seat sm ay also
be used and can be installe du sin gt he vehicle's
seat belt system. Install th ec hild seat according
to th em anufacturer' si nstructions.
Top Tether
Introduction Top Tether provides an additional connection
between th ec hild restraint system secured with
aL AT CH-type (ISOFIX) system and th ev ehicle.
This helps reduc et he risk of injury even further.
If th ec hild restraint system is equipped with a
Top Tether belt ,t hi ss hould always be used.
Important safety notes
G WARNING
If th er ear seat backrests are not locked ,t he y
could fold forwards in th ee ven tofana cci-
dent, heavy braking or sudden changes of
direction. As ar esult, child restraint systems
cannot perform their intended protective
function .R ear seat backrests that are not
locked can also cause additional injuries ,e .g.
in th ee ven tofana ccident. This poses an
increased risk of injury or even fatal injury.
Always lock rear seat backrests after instal-
ling aT op Tether belt .O bserve th el oc kv eri-
ficatio ni ndicator. Adjust th er ear seat backr-
est ssot ha tt he ya re in an uprigh tp osition.
If th er ear backres tisn ot engaged and locked,
th er ed lock verificatio ni ndicator will be visible
( Y
page 240).Children in th ev ehicle 57
Safety Z

Rearward-facin gc hild restraint systemIf it is absolutely necessary to install ar earward-
facing child restraint system on the front-
passenger seat, always make sure that the
front-passenger front ai rb ag is deactivated.
Only if the PASSENGER AIR BAG OFF indicator
lamp is permanently li t( Y
page 41 )i st he front-
passenger front ai rb ag deactivated.
Alway so bserve the child restraint system man-
ufacturer's installation and operating instruc-
tions.
Forward-facing child restraint system If it is absolutely necessary to install af orward-
facing child restraint system on the front-
passenger seat, always move the front-
passenger sea ta sf ar back as possible .F ully
retract the sea tc ushio nl en gth. The entir eb as e
of the child restraint system mus ta lway sr es to n
the sea tc ushio noft he front-passenger seat.
The backrest of the child restraint system must
li easf la ta sp ossible against the backrest of the
front-passenger seat. The child restraint system
mus tn ot touch the roo forbes ub jecte dtoal oa d
by the hea dr estraint. Adjust the angle of the
sea tb ac krest and the hea dr estraint position
accordingly .A lway sm ake sure that the shoul-
der bel ts tra pisc orrectly routed from the vehi-
cle bel to ut let to the shoulder bel tg uide on the
child restraint system. The shoulder bel ts trap
mus tb er outed forward and dow nf rom the vehi-
cle bel to ut let. If necessary, adjust the vehicle
bel to ut let and the front-passenger sea ta ccord-
ingly.
Alway so bserve the child restraint system man-
ufacturer's installation and operating instruc-
tions. Child-proof locks
Important safety notes
G WARNING
If children are traveling in the vehicle, they
could: R
ope nd oors, thu se ndangering othe rp eople
or roa du se rs R
exi tt he vehicl ea nd be caught by oncoming
traffic R
operate vehicl ee quipment and become
trapped
There is ar is kofana ccident and injury.
Alway sa ctivate the child-proof locks and
overrid ef eature if children are traveling in the
vehicle. Whe nl ea ving the vehicle, always take
the key with yo ua nd lock the vehicle. Never
leave children unattende dint he vehicle.
Overrid ef eature for: R
the rea rd oors ( Y
page 60) R
the rea rs id ew in dow s( Y
page 60)
G WARNING
If yo ul ea ve children unsupervised in the vehi-
cle ,t hey could set it in motion by ,f or example:R
release the parking brake. R
shift the automatic transmissio no ut of the
parking position P . R
star tt he engine.
In addition, they may operate vehicl ee quip-
ment and become trapped .T here is ar is ko f
an accident and injury.
Whe nl ea ving the vehicle, always take the
SmartKey with yo ua nd lock the vehicle. Never
leave children unsupervised in the vehicle.
G WARNING
If persons ,p ar ticularly children are subjected
to prolonged exposure to extreme hea to r
cold, there is ar is kofi njury, possibly even
fatal. Neve rl ea ve children unattende dint he
vehicle.Childre nint he vehicle 59
Safety Z