2017 MERCEDES-BENZ GLC COUPE seats

passenger front air bag is deactivated
(Ypage 43).
RAlways observe the instructions and safety
notes on the "Occupant Classification System
(OCS)" (
Ypage 50) and on "Children in the
vehicle" (Ypage 58) in addition to the child
restraint system manufacturer's installation
and operating instructions.
Objects in the vehicle interior may prevent
an air bag from functioning correctly. Before
starting your journey and to avoid risks resulting from the speed of the air bag as it deploys, make
sure that:
Rthere are no people, animals or objects
between the vehicle occupants and an air
bag.
Rthere are no objects between the seat, door
and B-pillar.
Rno hard objects, e.g. coat hangers, hang on
the grab handles or coat hooks.
Rno accessories, such as cup holders, are
attached to the vehicle within the deployment
area of an air bag, e.g. to doors, side windows,
rear side trim or side walls.
Rno heavy, sharp-edged or fragile objects are in
the pockets of your clothing. Store such
objects in a suitable place.
GWARNING
If you modify the air bag cover or affix objects
such as stickers to it, the air bag can no longer
function correctly. There is an increased risk
of injury.
Never modify an air bag cover or affix objects
to it.
GWARNING
Sensors to control the air bags are located in
the doors. Modifications or work not per-
formed correctly to the doors or door panel-
ing, as well as damaged doors, can lead to the
function of the sensors being impaired. The air
bags might therefore not function properly
anymore. Consequently, the air bags cannot
protect vehicle occupants as they are
designed to do. There is an increased risk of
injury.
Never modify the doors or parts of the doors.
Always have work on the doors or door pan-
eling carried out at a qualified specialist work-
shop.
Front air bags
!Do not place heavy objects on the front-
passenger seat. This could cause the system
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 air bag :deploys in front of the steer-
ing wheel. Front-passenger front air bag ;
deploys in front of and above the glove box.
When deployed, the front air bags offer addi-
tional head and thorax protection for the occu-
pants in the front seats.
The PASSENGER AIR BAG OFF indicator lamp
informs you about the status of the front-
passenger front air bag (
Ypage 43).
The front-passenger front air bag will only
deploy if:
Rthe system, based on the OCS weight sensor
readings, detects that the front-passenger
seat is occupied (
Ypage 50). The
PASSENGER AIR BAG OFF indicator lamp is
not lit (
Ypage 50)
Rthe restraint system control unit predicts a
high accident severity
48Occupant safety
Safety

Driver's kneeba g
Driver' sknee bag :deploys under th esteerin g
column .The driver's knee bag is triggere d
together wit hth efron tair bag.
The driver's knee bag offers additional thigh ,
knee and lowe rleg protection fo rth eoccupant
in th edriver's seat .
Sideimpact air bags
GWARNING
Unsuitable seat cover scan obstruct or pre -
ven tdeploymen tof th eair bags integrated
into th eseats. Consequently, th eair bags
canno tprotect vehicle occupant sas they are
designed to do. In addition ,th eoperation of
th eoccupant classification syste m(OCS )
could be adversely affected. Thi sposes an
increase dris kof injury or eve nfatal injury.
You should only use seat cover sthat hav e
bee napproved fo rth erespective seat by
Mercedes-Benz.
Fron tsid eimpact air bags :and rea rsid e
impact air bags ;deploy next to th eouter bol-
ster of th eseat backrest . Whe
ndeployed ,th esid eimpact air bag offers
additional thorax protection .However, it doe s
no tprotect the:
Rhead
Rneck
Rarm s
In th eevent of asid eimpact ,th esid eimpact air
bag is deployed on th esid eon whic hth eimpact
occurs.
The sid eimpact air bag on th efront-passenger
sid edeploys under th efollowin gconditions:
Rth eOCS syste mdetects that th efront-
passenger seat is occupied or
Rth eseat belt buckl etongue is engage din th e
belt buckl eof th efront-passenger seat
If th ebelt tongue is engage din th ebelt buckle,
th esid eimpact air bag on th efront-passenger
sid edeploys if an appropriat eacciden tsituation
occurs. In this case, deploymen tis independen t
of whether th efront-passenger seat is occupied
or not.
Window curtain air bags
Window curtain air bags :are integrated into
th esid eof th eroof frame and deployed in th e
are afrom th eA-pilla rto th eC-pillar .
Whe ndeployed ,th ewindow curtain air bag
enhance sth elevel of protection fo rth ehead .
However, it doe sno tprotect th echest or arms.
In th eevent of asid eimpact ,th ewindow curtain
air bag is deployed on th esid eon whic hth e
impact occurs.
If th esyste mdetermines that they can offe r
additional protection to that provided by th e
seat belt , awindow curtain air bag may be
deployed in other acciden tsituation s
(
Ypage 54) .
Occupant safety49
Safety
Z

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 easily deformed
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 a result.
If the restraint system control unit detects a side
impact or if the vehicle rolls over, the applicable
components of the restraint system are activa-
ted independently of each other depending on
the apparent type of accident.
RSide impact air bags on the side where the
impact takes place, independently of the
Emergency Tensioning 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 deploys under 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
RWindow 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
RFront Emergency Tensioning Devices, if the
system determines that deployment can offer
additional protection for the vehicle occu-
pants in this situation
RRear Emergency Tensioning Devices in cer-
tain situations if the vehicle rolls over
RWindow 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
iNot 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:
RFrontal collision
RSide impact
RRollover
PRE-SAFE®(anticipatory occupant
protection system)
Introduction
In certain hazardous situations, PRE-SAFE®
takes pre-emptive measures to protect the vehi-
cle occupants.
Important safety notes
!Make sure that there are no objects in the
footwell or behind the seats. There is a danger
that the seats and/or objects could be dam-
aged when PRE-SAFE
®is activated.
Despite your vehicle being equipped with the
PRE-SAFE
®system, the possibility of personal
injuries occurring as a result of an accident can-
not be eliminated. 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.
Function
PRE-SAFE®intervenes:
Rin emergency braking situations, e.g. when
BAS is activated
Rin critical driving situations, e.g. when physi-
cal limits are exceeded and the vehicle under-
steers or oversteers severely
Rvehicles with the Driving Assistance package:
when a driver assistance system intervenes
powerfully or the radar sensor system detects
an imminent danger of collision in certain sit- uations
56Occupant safety
Safety

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
a child restraint system on a rear seat. Children are generally better protected there.
If a child younger than twelve years old and
under 5 ft (1.50 m) in height is traveling in the
vehicle:
Ralways secure the child in a child restraint
system suitable for Mercedes-Benz vehicles.
The child restraint system must be appropri-
ate to the age, weight and size of the child
Rbe sure to observe the instructions and safety
notes in this section in addition to the child
restraint system manufacturer's installation
instructions
Rbe sure to observe the instructions and safetynotes on the "Occupant classification system
(OCS)" (
Ypage 50)
GWARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
Rrelease the parking brake.
Rshift the automatic transmission out of the
parking position P.
Rstart the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
GWARNING
If persons, particularly children are subjected to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle.
GWARNING
If the child restraint system is subjected to
direct sunlight, parts may get very hot. Chil-
dren may burn themselves on these parts,
particularly on the metal parts of the child
restraint system. There is a risk of injury.
If you leave the vehicle, taking the child with
you, always ensure that the child restraint
system is not exposed to direct sunlight. Pro- tect it with a blanket, 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.
Always ensure that all vehicle occupants have
their seat belts fastened correctly and are sitting
properly. Particular attention must be paid to
children.
Observe the safety notes on the seat belt
(
Ypage 44 )and the notes on correct use of seat
belts (Ypage 45).
A booster seat may be necessary to achieve
proper seat belt positioning for children over
41 lb s(18 kg) until they reach a height where a
three-point seat belt can be properly fastened
without a booster seat.
Special seat belt retractor
GWARNING
If the seat belt is released while driving, the
child restraint system will no longer be
secured properly. The special seat belt retrac- tor is disabled and the inertia real draws in a
portion of the seat belt. The seat belt cannot
be immediately refastened. There is an
increased risk of injury, possibly even fatal.
Stop the vehicle immediately, paying atten-
tion to road and traffic conditions. Reactivate
the special seat belt retractor and secure the
child restraint system properly.
All seat belts in the vehicle, except the driver's
seat belt, are equipped with a special seat belt
retractor. When activated, the special seat belt
retractor ensures that the seat belt cannot
slacken once the child seat is secured.
58Children in the vehicle
Safety

the instructions on “Occupant Classification
System (OCS)” (Ypage 50). This includes infor-
mation on deactivating the front-passenger's air
bag.
All child restraint systems must meet the fol-
lowing standards:
RU.S. Federal Motor Vehicle Safety Standards
213 and 225
RCanadian Motor Vehicle Safety Standards
213 and 210.2
A statement by the child restraint manufacturer
of compliance with these standards can be
found on the instruction label on the child
restraint system. You will also find the state-
ment in the instruction manual provided with the
child restraint system.
Observe the warning labels in the vehicle inte-
rior and on the child restraint system.
LATCH-type (ISOFIX) child seat secur-
ing system
GWARNING
LATCH-type (ISOFIX) child restraint systems
do not offer sufficient protective effect for
children whose weight is greater than 48 lbs
(22 kg) who are secured using the safety belt integrated in the child restraint system. In the
event of an accident, a child might not be
restrained correctly. This poses an increased
risk of injury or even fatal injury.
If the child weighs more than 48 lbs (22 kg),
only use LATCH-type (ISOFIX) child restraint
systems with which the child is also secured
with the vehicle seat belt. Also secure the
child restraint system with the Top Tether
belt, if available.
Always comply with the manufacturer's instal-
lation and operating instructions for the child
restraint system used.
Before every trip, make sure that the LATCH-
type (ISOFIX) child restraint system is engaged
correctly in both LATCH-type (ISOFIX) securing
rings
!When installing the child restraint system,
make sure that the seat belt for the middle
seat does not get trapped. The seat belt could
otherwise be damaged.
Vehicles with rear seat armrest: adjust the
rear seat armrest so that LATCH-type (ISOFIX)
securing rings :for the LATCH-type (ISOFIX)
child restraint system are accessible.
XInstall the LATCH-type (ISOFIX) child restraint
system on both LATCH-type (ISOFIX) securing
rings :.
ISOFIX is a standardized securing system for
specially designed child restraint systems on
the rear seats. LATCH-type (ISOFIX) securing
rings for two LATCH-type (ISOFIX) child restraint
systems are installed on the left and right of the
rear seats.
Non-LATCH-type (ISOFIX) child seats may also
be used and can be installed using the vehicle's
seat belt system. Install the child seat according
to the manufacturer's instructions.
Top Tether
Introduction
Top Tether provides an additional connection
between the child restraint system secured with
a LATCH-type (ISOFIX) system and the vehicle.
This helps reduce the risk of injury even further. If the child restraint system is equipped with a
Top Tether belt, this should always be used.
Important safety notes
GWARNING
If the rear seat backrests are not locked, they
could fold forwards in the event of an acci-
dent, heavy braking or sudden changes of
direction. As a result, child restraint systems
cannot perform their intended protective
function. Rear seat backrests that are not
locked can also cause additional injuries, e.g.
60Children in the vehicle
Safety

in the event of an accident. This poses an
increased risk of injury or even fatal injury.
Always lock rear seat backrests after instal-
ling a Top Tether belt. Observe the lock veri-
fication indicator.
If the rear seat backrest is not engaged and
locked, this will be shown in the multifunction
display in the instrument cluster.
Top Tether anchorages
Top Tether anchorage points ?are located on
the rear side of the rear seat backrests.
XMove head restraint :upwards.
XInstall the LATCH-type (ISOFIX) child restraint
system with Top Tether. Always comply with
the child restraint system manufacturer's
installation instructions when doing so.
XRoute Top Tether belt Bunder head
restraint :between the two head restraint
bars.
XGuide Top Tether belt Bdown between cargo
compartment cover =and rear seat back-
rest ;.
XHook Top Tether hook Ainto Top Tether
anchorage ?on the back of rear seat back-
rest ;.
XMake sure that Top Tether belt Bis not twis-
ted.
XTension Top Tether belt B. Always comply
with the child restraint system manufactur-
er's installation instructions when doing so.
XMove head restraint :back down again
slightly if necessary (Ypage 98). Make sure
that you do not interfere with the correct rout-
ing of Top Tether belt B.
Child restraint system on the front-
passenger seat
General notes
Accident statistics show that children secured
in the rear seats are safer than children secured
in the front seats. For this reason, Mercedes-
Benz strongly advises that you install a child
restraint system on a rear seat.
If it is absolutely necessary to install a child
restraint system on the front-passenger's seat,
be sure to observe the instructions and safety
notes on the "Occupant Classification System
(OCS)" (
Ypage 50).
This will help to rule out any risks that may arise
due to:
Ran incorrectly categorized person in the front-
passenger's seat
Rthe unintentional deactivation of the front-
passenger's front air bag
Ran unfavorable positioning of the child
restraint system, e.g. too near to the dash-
board
Rearward-facing child restraint system
Only secure a child on the front-passenger's
seat in a rearward-facing child restraint system
if the front-passenger front air bag has been
deactivated. Only if the PASSENGER AIR BAG
OFF indicator lamp is permanently lit
(
Ypage 43) is the front-passenger's front air bag
deactivated.
Always comply with the manufacturer's instal-
lation and operating instructions for the child
restraint system.
Children in the vehicle61
Safety
Z

Correct driver's seat position
GWARNING
You could lose control of your vehicle if you do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the engine.
Observe the following when adjusting steering
wheel :, seat belt ;and driver's seat =:
Ryou are as far away from the driver's air bag as
possible
Ryou are sitting in a normal upright position
Ryour thighs are slightly supported by the seat
cushion
Ryour legs are not entirely stretched and you
can depress the pedals properly
Rthe back of your head is supported at eye level
by the center of the head restraint
Ryou can hold the steering wheel with your
arms slightly bent
Ryou can move your legs freely
Ryou can see all the displays in the instrument
cluster clearly
Ryou should have a good overview of traffic
conditions
Rthe seat belt is pulled snugly against the body and is routed across the center of your shoul-
der and across your hips in the pelvic area
Further related subjects:
RAdjusting the seats electrically (Ypage 97).
RAdjusting the steering wheel mechanically
(Ypage 101).
RAdjusting the steering wheel electrically
(Ypage 101).
RFastening the seat belt correctly (Ypage 46).
RAdjusting the rear-view mirror and exterior
mirrors (Ypage 103).
RStoring the seat, steering wheel, exterior mir-
ror and head-up display settings with the
memory function (
Ypage 106).
Seats
Important safety notes
GWARNING
Children could become trapped if they adjust
the seats, particularly when unattended.
There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The seats can still be adjusted when there is no
SmartKey in the ignition lock.
GWARNING
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the seat guide rail. There is a risk of injury.
Make sure when adjusting a seat that no one
has any body parts in the sweep of the seat.
Observe the safety notes on "Air bags"
(
Ypage 47) and "Children in the Vehicle"
(Ypage 58).
GWARNING
If the head restraints are not installed or not
adjusted correctly, they cannot provide pro-
tection as intended. There is an increased risk
Seats95
Seats, steering wheel and mirrors
Z

of injury in the head and neck area, e.g. in theevent of an accident or when braking.
Always drive with the head restraints instal-
led. Before driving off, make sure for every
vehicle occupant that the center of the head
restraint supports the back of the head at
about eye level.
Using the fore-and-aft adjustment, adjust the
head restraint so that it is as close as possible to
your head.
GWARNING
If the driver's seat is not engaged, it could
move unexpectedly while the vehicle is in
motion. This could cause you to lose control of the vehicle. There is a risk of an accident.
Always make sure that the driver's seat is
engaged before starting the vehicle.
GWARNING
You could lose control of your vehicle if you do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the engine.
GWARNING
If you adjust the seat height carelessly, you or
other vehicle occupants could be trapped and
thereby injured. Children in particular could
accidentally press the electrical seat adjust-
ment buttons and become trapped. There is a
risk of injury.
While moving the seats, make sure that your
hands or other body parts do not get under the
lever assembly of the seat adjustment sys-
tem.
GWARNING
The seat belt does not offer the intended level of protection if you have not moved the back-
rest to an almost vertical position. When brak-
ing 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 ensure that the backrest
is in an almost vertical position and that the
shoulder section of your seat belt is routed
across the center of your shoulder.
!To avoid damage to the seats and the seat
heating, observe the following information:
Rkeep liquids from spilling on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
Rif the seat covers are damp or wet, do not
switch on the seat heating. The seat heat-
ing should also not be used to dry the seats.
Rclean the seat covers as recommended;
see "Interior care".
Rdo not transport heavy loads on the seats.
Do not place sharp objects on the seat
cushions, e.g. knives, nails or tools. The
seats should only be occupied by passen-
gers, if possible.
Rwhen the seat heating is in operation, do
not cover the seats with insulating materi-
als, e.g. blankets, coats, bags, seat covers,
child seats or booster seats.
!Make sure that there are no objects in the
footwell under or behind the seats when mov-
ing the seats back. There is a risk that the
seats and/or the objects could be damaged.
iFor more information, contact a qualified
specialist workshop.
iRelated topic:
REASY-PACK Quickfold rear bench seat
(Ypage 276)
96Seats
Seats, steering wheel and mirrors