2014 MERCEDES-BENZ S-Class rear seat

belt warning lamp flashes again if the vehicle
speed again exceeds 15 mph (25 km/h).
The 0076 seat belt warning lamp only goes
out if:
R both the driver and the front passenger
have fastened their seat belts.
or
R the vehicle is stationary and a door is open.
i For more information on the 0076seat
belt warning lamp, see "Warning and
indicator lamps in the instrument cluster,
seat belts" (Y page 302).
Emergency Tensioning Devices, seat
belt force limiters G
WARNING
Pyrotechnic Emergency Tensioning Devices
that have been deployed are no longer
operational and are unable to perform their
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 at a qualified
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, in the event of
an accident the different stages of the
Emergency Tensioning Devices could be
triggered.
i An electric motor is used by PRE-SAFE ®
to trigger the tightening of the seat belt in
hazardous situations. This procedure is
reversible.
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 incorrect seat
positions or incorrectly fastened seat belts.
The ETDs do not pull vehicle occupants back
towards the backrest.
If the seat belt is also equipped with a seat
belt force limiter and this is triggered, the
force exerted by the seat belt on the vehicle
occupant is reduced.
When triggered, seat belt force limiters help
to reduce the force exerted by the seat belt
on the vehicle occupant.
The seat belt force limiters for the front seats
are synchronized with the front air bags,
which absorb part of the deceleration force.
This results in the force exerted on the
occupant being distributed over a greater
area.
The ETDs can only be activated when:
R
the ignition is switched on
R the restraint systems are operational; see
"SRS warning lamp" (Y page 45)
R the front-passenger seat is occupied and
the belt tongue is engaged in the buckle on
the front-passenger side
R the belt tongue is engaged in the buckle on
each of the three-point seat belts in front
The ETDs on the outside seats in the rear
compartment are triggered independently of
the lock status of the seat belts.
The various stages of the Emergency
Tensioning Devices are triggered depending
on the type and severity of an accident:
R in the event of a head-on or rear-end
collision if the vehicle decelerates or
accelerates rapidly in a longitudinal
direction during the initial stages of the
impact.
R in the event of a side impact if the vehicle
decelerates or accelerates rapidly in a
lateral direction on the side opposite to the
impact.
R in certain situations where the vehicle rolls
over if the system determines that it can
provide additional protection. 62
Occupant safetySafety

If the ETDs are deployed, you will hear a bang,
and a small amount of powder may also be
released. Only in rare cases will the bang
affect your hearing. The powder that is
released generally does not constitute a
health hazard and does not indicate that there
is a fire in the vehicle. The dust might cause
some temporary breathing difficulty for
people with asthma or other breathing
trouble. To avoid this, you may wish to get out
of the vehicle as soon as it is safe to do so.
You can also open the window to allow fresh
air to enter the vehicle interior. The 0075SRS
warning lamp lights up.
Belt bags i
Observe the "Important safety notes"
section (Y page 46). G
WARNING
In an accident, the belt bag may damage a
non-approved child restraint system. As a
result, the child restraint system may not be
able to provide the intended level of
protection. There is an increased risk of
injury.
For safety reasons, we recommend that you
only use a child restraint system which has
been tested and approved by Mercedes-Benz
in combination with a belt bag.
i Further information on child restraint
systems (Y page 63). The rear seat belts are equipped with belt
bags
0043. These are triggered depending on
the type and severity of the accident. When triggered, the belt bags open, increasing the
protected area of the occupants' ribcages. Children in the vehicle
Child restraint systems
Important safety notes G
WARNING
According to accident statistics, children are
safer when properly restrained in the rear
seating positions than in the front seating
position. Thus, we strongly recommend that
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, or booster
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 anchors and
top tether strap, fully in accordance with the
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, or booster seat
recommended for the size and weight of the
child.
Children can be killed or seriously injured by
an inflating air bag. Note the following
important information when circumstances
require you to place a child in the front
passenger seat:
R Your vehicle is equipped with air bag
technology designed to deactivate the front
passenger front air bag in your vehicle
when the system senses the weight of a
typical 12-month-old child or less along
with the weight of a standard appropriate
child restraint on the front passenger seat.
R For children larger than the typical
12-month-old child, the front passenger Children in the vehicle
63Safety
Z

front air bag may or may not be activated.
Always make sure the 00730074indicator
lamp is illuminated, indicating that the front
passenger front air bag is deactivated.
R A child in a rear-facing child restraint on the
front passenger seat will be seriously
injured or even killed if the front passenger
front air bag inflates in a collision which
could occur under some circumstances,
even with the air bag technology installed
in your vehicle. The only means to
completely eliminate this risk is to never
place a child in a rear-facing child restraint
in the front seat. We therefore strongly
recommend that you always place a child
in a rear-facing child restraint in a backseat.
R If you must install a rear-facing child
restraint on the front passenger seat
because circumstances require you to do
so, make sure the 00730074indicator
lamp is illuminated, indicating that the front
passenger front air bag is deactivated.
Should the 00730074indicator lamp not
illuminate or go out while the restraint is
installed, please check installation.
Periodically check the 00730074indicator
lamp while driving to make sure the 0073
0074 indicator lamp is illuminated. If the
00730074indicator lamp goes out or
remains out, do not transport a child on the
front passenger seat until the system has
been repaired.
A child in a rear-facing child restraint on the
front passenger seat will be seriously
injured or even killed if the front passenger
front air bag inflates.
R If you have to place a child in a forward-
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, and secure child restraint with
the vehicle's seat belt according to the
child seat manufacturer's instructions. G
WARNING
If the child restraint system is installed
incorrectly on a suitable seat, it cannot
protect as intended. The child cannot then be
restrained in the event of an accident, heavy
braking or sudden changes of direction. There
is an increased risk of injury, possibly even
fatal.
Make sure that you observe the child restraint
system manufacturer's installation
instructions and the notes on use. Please
ensure, that the base of the child restraint
system is always resting completely on the
seat cushion. Never place objects, e.g.
cushions, under or behind the child restraint
system. Only use child restraint systems with
the original cover designed for them. Only
replace damaged covers with genuine covers. G
WARNING
If the child restraint system is installed
incorrectly or is not secured, it can come
loose in the event of an accident, heavy
braking or a sudden change in direction. The
child restraint system could be thrown about,
striking vehicle occupants. There is an
increased risk of injury, possibly even fatal.
Always install child restraint systems
properly, even if they are not being used.
Make sure that you observe the child restraint
system manufacturer's installation
instructions. G
WARNING
Child restraint systems or their securing
systems which have been damaged or
subjected to a load in an accident can no
longer protect as intended. The child cannot
then be restrained in the event of an accident,
heavy braking or sudden changes of direction.
There is an increased risk of injury, possibly
even fatal.
Replace child restraint systems which have
been damaged or subjected to a load in an
accident as soon as possible. Have the
securing systems on the child restraint 64
Children in the vehicleSafety

Infants and children must always be seated in
an appropriate infant or child restraint system
recommended for 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:
R U.S. Federal Motor Vehicle Safety
Standards 213 and 225
R Canadian Motor 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.
Vehicles with seat belt extenders: when
securing a child in a child restraint system on
a rear seat, observe the following
instructions:
R make sure that the seat belt on the child
restraint system is fastened according to
the manufacturer's installation
instructions for the child restraint system.
R for child restraint systems with a belt
clamp: engage the belt tongue in the buckle
before you tighten the seat belt using the
belt clamp.
Vehicles with a rear reclining seat: when
installing a child restraint system, move the
rear reclining seat backrest to a nearly upright
position. The rear reclining seat backrest
must rest against the child restraint system.
Observe the notes on the cushion air bag
(Y page 51). Special seat belt retractor G
WARNING
If you release the seat belt when driving, the
special seat belt retractor is deactivated.
The released seat belt cannot be engaged
again while driving, because the inertia reel
pulls in the seat belt a small distance. The
child restraint system is no longer properly
secured. There is an increased risk of serious
injury or even fatal injury.
Always keep the seat belt of the activated
special seat belt retractor engaged when
driving.
All seat belts 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 will not
slacken once the child restraint system has
been secured.
Installing a child restraint system:
X Always comply with the manufacturer's
installation instructions.
X Pull the seat belt smoothly from the seat
belt retractor.
X Engage the seat belt tongue in the belt
buckle.
Activating the special seat belt retractor:
X Pull the seat belt out fully and let the seat
belt retractor retract it again.
While the seat belt is retracting, you should
hear a ratcheting sound. The special seat
belt retractor is activated.
X Push down on the child restraint system to
take up any slack.
Removing a child restraint system/
deactivating the special seat belt retractor:
X Always comply with the manufacturer's
installation instructions.
X Press the seat belt release button and
guide the belt tongue to the belt outlet.
The special seat belt retractor is
deactivated. 66
Children in the vehicleSafety

LATCH-type (ISOFIX) child seat anchors
in the rear G
WARNING
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.
When installing a child restraint system, be
sure to observe the manufacturer's
installation instructions and the instructions
for correct use of the child restraint system.
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 LATCH-type (ISOFIX)
child restraint system, make sure that the
seat belt for the center seat does not get
trapped. Otherwise, the seat belt could be
damaged. LATCH-type (ISOFIX) securing rings
0044on the
rear seats are covered by a Velcro-fastened
upholstered lining 0043. X
Vehicles with a rear reclining seat:
adjust the rear reclining seat backrest
down a little before installing the LATCH-
type (ISOFIX) child restraint system.
X Remove upholstered lining 0043.
X Install the LATCH-type (ISOFIX) child
restraint system on both LATCH-type
(ISOFIX) securing rings 0044.
X Vehicles with a rear reclining seat: move
the rear reclining seat backrest to an
upright position. The rear reclining seat
backrest must rest against the child
restraint system. G
WARNING
Vehicles with electrically adjustable rear
bench seats:
If you adjust the seat after installing a child
restraint system:
R the seat belt could slacken or become too
tight
R the child restraint system could become
loose, incorrectly positioned or damaged
As a result, the child restraint system may not
be able to provide the intended level of
protection. This poses an increased risk of
injury or even fatal injury.
Never adjust the seat after installing the child
restraint system.
LATCH-type (ISOFIX) is a standardized
securing system for specially designed child
restraint systems on the rear seats. LATCH-
type (ISOFIX) securing rings 0044for two
LATCH-type (ISOFIX) child restraint systems
are installed on the left and right of the rear
seats.
Vehicles with rear seat armrest: adjust the
rear seat armrest so that LATCH-type
(ISOFIX) securing rings 0044for the LATCH-type
(ISOFIX) child restraint system are
accessible.
Non-LATCH-type (ISOFIX) child seats may
also be used and can be installed using the
vehicle's seat belt system. Install the child Children in the vehicle
67Safety Z

seat according to the manufacturer's
instructions.
Top Tether
Top Tether provides an additional connection
between a child restraint system, secured
with a LATCH-type (ISOFIX) child seat mount,
and the rear seat. 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. G
WARNING
If the rear seat backrests are not locked, they
could fold forwards in the event of an
accident, 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.
in the event of an accident. This poses an
increased risk of injury or even fatal injury.
Always lock rear seat backrests after
installing a Top Tether belt. Observe the lock
verification indicator. Adjust the rear seat
backrests so that they are positioned
vertically.
If the rear seat backrest is not engaged and
locked, this will be shown in the multifunction
display in the instrument cluster. A warning
tone also sounds. G
WARNING
Vehicles with electrically adjustable rear
bench seats:
If you adjust the seat after installing a child
restraint system:
R the seat belt could slacken or become too
tight
R the child restraint system could become
loose, incorrectly positioned or damaged
As a result, the child restraint system may not
be able to provide the intended level of
protection. This poses an increased risk of
injury or even fatal injury. Never adjust the seat after installing the child
restraint system.
Top Tether anchorage points
0043are installed
in the rear compartment behind the head
restraints on the parcel shelf.
X Move head restraint upwards
(Y page 113).
X Fold up cover 0043of Top Tether anchorage. X
Route Top Tether belt 0085under the head
restraint between the two head restraint
bars.
X Hook Top Tether hook 0087into Top Tether
anchorage 0044.
X Make sure that Top Tether belt 0085is not
twisted.
X Fold down cover 0043of Top Tether
anchorage.
X Move head restraint back down again
slightly if necessary (Y page 123).68
Children in the vehicleSafety

vehicle is unlocked, the door can be opened
from the outside.
X To activate: press the child-proof lock
lever up in the direction of arrow 0043.
X Make sure that the child-proof locks are
working properly.
X To deactivate: press the child-proof lock
lever down in the direction of arrow 0044.
Override feature for the rear side
windows G
WARNING
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. X
To activate/deactivate: press button0044.
If indicator lamp 0043is lit, operation of the
rear side windows is disabled. Operation is
only possible using the switches in the
driver's door. If indicator lamp 0043is off,
operation is possible using the switches in
the rear compartment.
For the rear compartment, you can deactivate
operation of:
R the rear side windows
R adjustment of the front-passenger seat
from the rear compartment
R the sunblinds:
-in the roof
- of the rear window
- of the rear side windows Driving safety systems
Overview of driving safety systems
In this section, you will find information about
the following driving safety systems:
R ABS ( Anti-lock BrakingSystem)
(Y page 71)
R BAS ( Brake Assist System) (Y page 71)
R BAS PLUS (Brake AssistSystem PLUS) with
Cross-Traffic Assist (Y page 72)
R COLLISION PREVENTION ASSIST (distance
warning function and adaptive Brake
Assist) (Y page 73)
R ESP ®
(Electronic StabilityProgram)
(Y page 76)
R EBD ( Electronic Brake force Distribution)
(Y page 78)
R ADAPTIVE BRAKE (Y page 78)
R PRE-SAFE ®
Brake (Y page 78)
R STEER CONTROL (Y page 80) 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
conditions and maintain a safe distance from
the vehicle in front. Drive carefully.
i The driving safety systems described only
work as effectively as possible when there
is adequate contact between the tires and
the road surface. Please pay special
attention to the notes on tires,
recommended minimum tire tread depths,
etc. (Y page 384).
In wintry driving conditions, always use
winter tires (M+S tires) and if necessary, 70
Driving safety systemsSafety

X
Turn the SmartKey to position 1or 2in the
ignition lock.
X To open manually: press the
corresponding switch.
X To open fully: press the corresponding
switch beyond the point of resistance.
Automatic closing is started.
X To close manually: pull the corresponding
switch.
X To close fully: pull the corresponding
switch beyond the pressure point.
Automatic closing is started.
X To interrupt the automatic opening/
closing: press/pull the corresponding
switch again.
i If you press the switch beyond the point
of resistance, an automatic opening/
closing process is started in the
corresponding direction. You can stop
automatic operation by operating the
switch again.
i You can continue to operate the side
windows after you switch off the engine or
remove the SmartKey. This function
remains active for five minutes or until you
open a front door.
i When the override feature for the side
windows is activated (Y page 70), the side
windows cannot be operated from the rear.
i Information on opening and closing the
roller sunblinds on the rear side windows
(Y page 324). Convenience opening
General notes You can ventilate the vehicle before you start
driving.
If the SmartKey is in close proximity to the
vehicle, the convenience opening function is
available. To do this, the SmartKey is used to carry out
the following functions simultaneously:
R
unlock the vehicle
R open the side windows
R open the panorama roof with power tilt/
sliding panel and the roller sunblinds
R switch on the seat ventilation for the
driver's seat
Convenience opening X
Press and hold the 0036button until the
side windows and the panorama roof with
power tilt/sliding panel are in the desired
position.
If the roller sunblinds of the panorama roof
with power tilt/sliding panel are closed, the
roller sunblinds are opened first.
X Press and hold the 0036button again until
the panorama roof with power tilt/sliding
panel is in the desired position.
X To interrupt convenience opening:
release the 0036button. Convenience closing feature
Important safety notes G
WARNING
When the convenience closing feature is
operating, parts of the body could become
trapped in the closing area of the side window
and the sliding sunroof. There is a risk of
injury.
Observe the complete closing procedure
when the convenience closing feature is
operating. Make sure that no body parts are
in close proximity during the closing
procedure.
When you lock the vehicle, you can
simultaneously:
R close the side windows
R close the panorama roof with power tilt/
sliding panel 100
Side windowsOpening and closing