2017 MERCEDES-BENZ AMG GT S Owner's Manual

continue to perform their protective function for
the vehicle occupants in the event of a crash.
GWARNING
Pyrotechnic Emergency Tensioning Devices
that have been deployed are no longer opera-
tional and are unable to perform their inten-
ded protective function. This poses an
increased risk of injury or even fatal injury.
Therefore, have pyrotechnic Emergency Ten-
sioning Devices which have been triggered
immediately replaced at a qualified specialist workshop.
An electric motor is used by PRE-SAFE
®to trig-
ger the tightening of the seat belt in hazardous
situations. This procedure is reversible.
If Emergency Tensioning Devices are triggered
or air bags are deployed, you will hear a bang,
and a small amount of powder may also be
released. The 6restraint system warning
lamp lights up.
Only in rare cases will the bang affect your hear-
ing. The powder that is released generally does
not constitute a health hazard, but it may cause
short-term breathing difficulties in people with
asthma or other respiratory problems. To avoid
this, you may wish to get out of the vehicle or
open the windows as soon as it is safe to do so.
Air bags and pyrotechnic Emergency Tensioning
Devices (ETDs) contain perchlorate material,
which may require special handling and regard
for the environment. National guidelines must
be observed during disposal. In California, see
www.dtsc.ca.gov/HazardousWaste/
Perchlorate/index.cfm .
Method of operation
During the first stage of a collision, the restraint
system control unit evaluates important physi-
cal data relating to vehicle deceleration or accel-
eration, such as:
Rduration
Rdirection
Rintensity
Based on the evaluation of this data, the
restraint system control unit triggers the Emer-
gency Tensioning Devices during a frontal or
rear collision. An Emergency Tensioning Device can only be
triggered, if:
Rthe ignition is switched on
Rthe components of the restraint system are
operational; see "Restraint system warning
lamp" (
Ypage 35)
Rthe belt tongue has engaged in the belt buckle
of the respective seat
If the restraint system control unit detects a
more severe accident, further components of
the restraint system are activated independ-
ently of each other in certain frontal collision
situations:
RFront air bags as well as driver's and front-
passenger knee bags
RSide impact air bag and window curtain air
bag, if the system determines that deploy-
ment can offer additional protection to that
provided by the seat belt
The front-passenger front air bag is activated or
deactivated depending on the person on the
front-passenger seat. The front-passenger front
air bag can only deploy in an accident if the
PASSENGER AIR BAG ON indicator lamp is lit.
Observe the information on the PASSENGER AIR
BAG indicator lamps (
Ypage 36).
Your vehicle has two-stage front air bags. During the fi
rst deployment stage, the front air bag is
filled with propellant gas to reduce the risk of
injuries. The front air bag is fully deployed with
the maximum amount of propellant gas if a sec-
ond deployment threshold is reached within a
few milliseconds.
The activation threshold of the Emergency Ten-
sioning Devices and the air bag are determined
by evaluating the rate of vehicle deceleration or
acceleration which occurs at various points in
the vehicle. This process is pre-emptive in
nature. Deployment should take place in good
time at the start of the collision.
The rate of vehicle deceleration or acceleration
and the direction of the force are essentially
determined by:
Rthe distribution of forces during the collision
Rthe collision angle
Rthe deformation characteristics of the vehicle
Rthe characteristics of the object with which
the vehicle has collided
Factors which can only be seen and measured
after a collision has occurred do not play a deci-
sive role in the deployment of an air bag, Nor do
Occupant safety47
Safety
Z

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 eventhough 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 that the vehicle is rolling over, the rel-
evant restraint system components are activa-
ted independently of one another depending on
the apparent type of accident. If the system
determines a need for additional protection for
the vehicle occupants, the Emergency Tension-
ing Devices are triggered.
RSide impact air bag on the side of impact,
independently of the Emergency Tensioning
Device and the use of the seat belt on the
driver's seat
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 belt tongue is engaged in the belt
buckle of the front-passenger seat
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 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.
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
Ron vehicles with DISTRONIC PLUS: if adaptive
Brake Assist intervenes powerfully
PRE-SAFE
®takes the following measures
depending on the hazardous situation detected:
Rthe seat belts are pre-tensioned.
Rif the vehicle skids, the side windows are
closed.
Rvehicles with the memory function for the
front-passenger seat: the front-passenger
seat is adjusted if it is in an unfavorable posi-
tion.
If the hazardous situation passes without result-
ing in an accident, PRE-SAFE
®slackens the belt
pre-tensioning. All settings made by PRE-SAFE®
can then be reversed.
If the seat belt pre-tensioning is not reduced:
XMove the seat backrest or seat back slightly
when the vehicle is stationary.
The seat belt pre-tensioning is reduced and
the locking mechanism is released.
The seat-belt adjustment is an integral part of
the PRE-SAFE
®convenience function. Informa-
tion about the convenience function can be
found under "Belt adjustment" (
Ypage 39).
48Occupant safety
Safety

Automa tic measures after an acci-
dent
Immediately after an accident, th efollowin g
measures are implemented, depending on th e
typ eand severity of th eimpact :
Rthehazard warning lamp sare activated
Rth eemergenc ylighting is activated
Rth evehicl edoor sare unlocke d
Rthefron tside windows are lowered
Rth eengin eis switched off
Rvehicles wit hmbrace: automatic emer-
gency call
Children in the vehicle
Import ant safety notes
Ifachild younger than 12 years and under 5ft
(1.50 m) in height is traveling in th evehicle:
Ralways secure th echild in achild restrain t
system suitable for Mercedes-Benz vehicles.
The child restrain tsystem mus tbe appropri-
ate to th eage, weigh tand siz eof th echild
Rbe sur eto observ eth einstruction sand safet y
note sin this section in addition to th echild
restrain tsystem manufacturer' sinstallation
instruction s
Rbe sureto observ eth einstruction sand safet y
note son th e"Occupant classification system
(OCS)" (
Ypage 42 )
GWARNIN G
If you leav echildren unsupervised in th evehi-
cle ,they could set it in motion ,for exampl eby:
Rreleasin gth eparking brak e
Rshifting thetransmission to th eneutral
position
Rstarting th eengin e
In addition ,they may operate vehicl eequip -
men tand become trapped .There is aris kof
an acciden tand injury.
When leaving th evehicle, always tak eth e
SmartKey wit hyou and loc kth evehicle. Never
leav echildren unsupervised in th evehicle.
GWARNIN G
If persons, particularly children are subjecte d
to prolonged exposure to extreme heat or
cold, there is aris kof injury, possibl yeve n
fatal. Never leav echildren unattended in th e
vehicle.
GWARNIN G
If th echild restrain tsystem is subjecte dto
direc tsunlight, part smay get ver yhot .Chil-
dre nmay burn themselves on these parts,
particularly on th emetal part sof th echild
restrain tsystem. There is aris kof injury.
If you leav eth evehicle, taking th echild wit h
you, always ensur ethat th echild restrain t
system is no texposed to direc tsunlight. Pro -
tect it wit h ablanket, for example. If th echild
restrain tsystem has been exposed to direc t
sunlight, let it cool down before securin gth e
child in it .Never leav echildren unattended in
th evehicle.
Always ensur ethat all vehicl eoccupant shav e
their seat belt sfastene dcorrectl yand are sitting
properly. Particular attention mus tbe paid to
children .
Observ eth esafet ynote son th eseat belt
(
Ypage 37 )and th einformation on th ecorrec t
use of th eseat belt (Ypage 38).
A booste rseat may be necessar yto achiev e
proper seat belt positioning for children ove r
41 lbs (18 kg) or until they reac h aheight wher e
a lap/shoulder belt can be fastene dproperly
without abooste rseat .
Special seat belt ret ractor
GWARNIN G
If th eseat belt is release dwhile driving, th e
child restrain tsystem will no longer be
secured properly. The special seat belt retrac -
to ris disabled and th einertia real draw sin a
portion of th eseat belt .The seat belt canno t
be immediately refastened. There is an
increased ris kof injury, possibl yeve nfatal.
Stop th evehicl eimmediately, payin gatten -
tion to road and traffic conditions. Reactivat e
Children in the vehicle49
Safety
Z

the special seat belt retractor and secure thechild restraint system properly.
The seat belt on the front-passenger side is
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:
XAlways comply with the child restraint system
manufacturer's installation instructions.
XPull the seat belt smoothly out of the seat belt
guide.
XEngage the seat belt tongue in the belt buckle.
Activating the special seat belt retractor:
XPull the seat belt out fully and let the inertia
reel retract it again.
While the seat belt is retracting, you should
hear a ratcheting sound. The special seat belt
retractor is activated.
XPush the child seat restraint system down so
that the seat belt is tight and does not loosen.
Removing a child restraint system/deactivating
the special seat belt retractor:
XAlways comply with the child restraint system
manufacturer's installation instructions.
XPress the belt buckle release button and
guide the belt tongue to the seat belt guide.
The sp ecia
l seat belt retractor is deactivated.
Child restraint system
The use of seat belts and child restraint systems
is required by law in:
Rall 50 states
Rthe U.S. territories
Rthe District of Columbia
Rall Canadian provinces
You can obtain further information about the
correct child restraint system from any author-
ized Mercedes-Benz Center.
GWARNING
If the child restraint system is installed incor-
rectly 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 instruc-
tions and the notes on use. Please ensure,
that the base of the child restraint system is
always resting completely on the seat cush-
ion. 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.
GWARNING
If the child restraint system is installed incor-
rectly 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, strik-
ing vehicle occupants. There is an increased
risk of injury, possibly even fatal.
Always install child restraint systems prop-
erly, even if they are not being used. Make
sure that you observe the child restraint sys-
tem manufacturer's installation instructions.
You will find further information on stowing
objects, luggage or loads under "Loading guide-
lines" (
Ypage 209).
GWARNING
Child restraint systems or their securing sys-
tems 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 secur-
ing systems on the child restraint system
checked at a qualified specialist workshop,
before you install a child restraint system
again.
50Children in the vehicle
Safety

The securing system of child restraint systems is
the seat belt system.
If you install a child restraint system on the
front-passenger seat, be sure to observe the
instructions and safety notes on the "Occupant
Classification System (OCS)" (
Ypage 42). There
you will also find information on deactivating the
front-passenger front 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
Confirmation that the child restraint system cor-
responds to the standards can be found on an
instruction label on the child restraint system.
This confirmation can also be found in the instal-
lation instructions that are included with the
child restraint system.
Observe the warning labels in the vehicle inte-
rior and on the child restraint system.
Child restraint system on the front-
passenger seat
General notes
If you secure a child in a child restraint system
on the front-passenger seat, be sure to observe
the instructions and safety notes on the "Occu-
pant Classification System (OCS)" (
Ypage 42).
You can thus avoid the risks that could arise as
a result of:
Ran incorrectly categorized person in the front-
passenger seat
Rthe unintentional deactivation of the front-
passenger front air bag
Rthe unsuitable positioning of the child
restraint system, e.g. too close to the dash-
board
Rearward-facing child restraint system
If it is absolutely necessary to install a rearward-
facing child restraint system on the front-
passenger seat, always make sure that the
front-passenger front air bag is deactivated.
Only if the PASSENGER AIR BAG OFF indicator
lamp is permanently lit (
Ypage 36) is the front-
passenger front air bag deactivated. Always observe the child restraint system man-
ufacturer's installation and operating instruc-
tions.
Forward-facing child restraint system
If you secure a child in a forward-facing child
restraint system on the front-passenger seat,
always move the front-passenger seat as far
back as possible. The entire base of the child
restraint system must always rest on the seat
cushion of the front-passenger seat; the rear
side must, as far as possible, be resting on the
backrest of the front-passenger seat. The child
restraint system must not touch the roof or be
subjected to a load by the head restraint. Adjust
the angle of the seat backrest and the head
restraint position accordingly. Always make
sure that the shoulder belt strap is correctly
routed from the front-passenger seat belt loop
to the shoulder belt guide on the child restraint
system. The shoulder belt strap must be routed
forwards and downwards from the front-
passenger seat belt loop.
Always observe the child restraint system man-
ufacturer's installation and operating instruc-
tions.
Pets in the vehicle
GWARNING
If you leave animals unattended or unsecured
in the vehicle, they could press buttons or
switches, for example.
As a result, they could:
Ractivate vehicle equipment and become
trapped, for example
Ractivate or deactivate systems, thereby
endangering other road users
Unsecured animals could also be flung around
the vehicle in the event of an accident or sud-
den steering or braking, thereby injuring vehi-
cle occupants. There is a risk of an accident
and injury.
Never leave animals unattended in the vehi-
cle. Always secure animals properly during
the journey, e.g. use a suitable animal trans-
port box.
Children in the vehicle51
Safety
Z

Drivingsafet ysystems
Overview of drivin gsafet ysystems
In this section ,you will fin dinformation about
th efollowin gdrivin gsafet ysystems :
RABS (Anti-loc kBrakin gSystem)
(Ypage 52)
RBA S (B rakeAssist System) (Ypage 52)
RCOLLISION PREVENTION ASSIST PLU S
(Ypage 53 )
RESP®(Electronic StabilityProgram)
(Ypage 55)
REB D (Electroni cBrak eforc eDistribution )
(Ypage 57 )
RADAPTIV EBRAKE (Ypage 58 )
Important safet ynotes
If you fail to adapt your drivin gstyle or if you are
inattentive ,th edrivin gsafet ysystems can nei-
ther reduce th eris kof an acciden tno roverride
th elaws of physics. Driving safet ysystems are
merely aids designed to assist driving. You are
responsible fo rmaintainin gth edistanc eto th e
vehicle in front, fo rvehicle speed, fo rbraking in
goo dtime, and fo rstayin gin lane. Always adapt
your drivin gstyle to suit th eprevailin groad and
weather condition sand maintain asaf edistanc e
from th evehicle in front. Drive carefully.
The drivin gsafet ysystems described only wor k
as effectively as possible when there is ade-
quat econtact between th etires and th eroad
surface. Please pay special attention to th e
note son tires ,recommended minimum tire
tread depths, etc. (
Ypage 254).
In wintr ydrivin gconditions, always use winte r
tires (M+ Stires )and if necessary, snow chains.
Only in this way will the driving safety systems
described in this section work as effectively as
possible.
ABS (Anti-lock Braking System)
General information
ABS regulates brake pressure in such a way that
the wheels do not lock when you brake. This
allows you to continue steering the vehicle when
braking. The
! ABS warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out when the engine is running.
ABS works from a speed of about 5 mph
(8 km/h), regardless of road-surface conditions.
ABS works on slippery surfaces, even when you
only brake gently.
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 52).
GWARNING
If ABS is faulty, the wheels could lock when
braking. The steerability and braking charac-
teristics may be severely impaired. Addition-
ally, further driving safety systems are deac-
tivated. There is an increased danger of skid-
ding and accidents.
Drive on carefully. Have ABS checked imme-
diately at a qualified specialist workshop.
When ABS is malfunctioning, other systems,
including driving safety systems, will also
become inoperative. Observe the information
on the ABS warning lamp (
Ypage 192) and dis-
play messages which may be shown in the
instrument cluster (
Ypage 167).
Brakes
XIf ABS intervenes: continue to depress the
brake pedal vigorously until the braking sit-
uation is over.
XTo make a full brake application: depress
the brake pedal with full force.
If ABS intervenes when braking, you will feel a
pulsing in the brake pedal.
The pulsating brake pedal can be an indication
of hazardous road conditions, and functions as a
reminder to take extra care while driving.
BAS (Brake Assist System)
General information
BAS operates in emergency braking situations.
If you depress the brake pedal quickly, BAS
automatically boosts the braking force, thus
shortening the stopping distance.
52Driving safety systems
Safety

Important safety notes
iObserveth e"Importan tsafet ynotes" sec -
tion (Ypage 52).
GWARNIN G
If BA Sis malfunctioning ,th ebraking distanc e
in an emergenc ybraking situation is
increased. Ther eis aris kof an accident.
In an emergenc ybraking situation ,depress
th ebrak epedal wit hfull force .AB Sprevents
th ewheels from locking.
Braking
XKee pth ebrak epedal firmly depressed until
th eemergenc ybraking situation is over.
AB Sprevents th ewheels from locking.
The brakes will function as usual once you
release th ebrak epedal .BA Sis deactivated.
COLLISION PREVENTION ASSIST
PLUS
General information
iObserv eth e"Importan tsafet ynotes" sec -
tion (Ypage 52).
COLLISION PREVENTION ASSIST PLU Sconsist s
of adistanc ewarning function wit han autono -
mous braking function and adaptive Brake
Assist .
COLLISION PREVENTION ASSIST PLU Scan help
you to minimiz eth eris kof afront-en dcollision
wit h a vehicl eahead or reduce th eeffects of
suc h a collision .
If COLLISION PREVENTION ASSIST PLU S
detects that there is aris kof acollision ,you will
be warned visually and acoustically. If you do no t
reac tto th evisual and audible collision warning ,
autonomous braking can be initiate din critical
situations. If you apply th ebrak eyourself in a
critical situation ,th eCOLLISION PREVENTION
ASSIST PLU Sadaptive Brake Assist assist syou.
Important safety notes
In particular, th edetection of obstacles can be
impaire dif:
Rthere is dirt on th esensor sor anythin gelse
covering th esensor s
Rthere is snow or heav yrain
Rthere is interferenc eby other radar source s
Rthere are strongradar reflections, for exam-
ple in parking garages
Ra narrow vehicl etraveling in front, e.g. a
motorbike
Ra vehicl etraveling in fron ton adifferen tlin e
Rne wvehicles or after aservic eon th eCOLLI-
SION PREVENTION ASSIST PLU Ssystem
Observ eth eimportant safet ynote sin th e
"Breaking-in notes" section (
Ypage 101).
Followin gdamag eto th efron ten dof th evehicle,
hav eth econfiguration and operation of th e
radar sensor checke dat aqualified specialist
workshop. This also applie sto collision sat slow
speeds wher ethere is no visible damag eto th e
fron tof th evehicle.
Switching on/off
The COLLISION PREVENTION ASSIST PLU Sis
automatically active after switching on th eigni-
tion .
You can activat eor deactivat eCOLLISION PRE -
VENTION ASSIST PLU Sin th eon-board com-
puter (
Ypage 160). When deactivated, th edis-
tance warning function and th eautonomous
braking function are also deactivated.
If COLLISION PREVENTION ASSIST PLU Sis
deactivated, th eæ symbol appear sin th e
assistanc egraphic sdisplay.
Distance warning function
Gene ral information
The distanc ewarning function can help you to
minimiz eth eris kof afront-en dcollision wit h a
vehicl eahead or reduce th eeffects of suc h a
collision .If th edistanc ewarning function
detects that there is aris kof acollision ,you will
be warned visually and acoustically.
Import ant safety notes
iObserveth e"Importan tsafet ynotes" sec -
tion for driving safet ysystems (Ypage 52).
Driving safety systems53
Safety
Z

GWARNING
The distance warning function does not react:
Rto people or animals
Rto oncoming vehicles
Rto crossing traffic
Rwhen cornering
Thus, the distance warning function cannot
provide a warning in all critical situations.
There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
GWARNING
The distance warning function cannot always
clearly identify objects and complex traffic
situations.
In such cases, the distance warning function
may:
Rgive an unnecessary warning
Rnot give a warning
There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and do not rely solely on the distance
warning function.
Function
Starting at a speed of approximately 4 mph
(7 km/h), the distance warning function warns
you if you rapidly approach a vehicle in front. An
intermittent warning tone will then sound, and
the · distance warning lamp will light up in
the instrument cluster.
XBrake immediately in order to increase the
distance from the vehicle in front.
or
XTake evasive action, provided it is safe to do
so.
Due to the nature of the system, particularly
complicated but non-critical driving conditions
may also cause the system to display a warning.
With the help of the radar sensor system, the
distance warning function can detect obstacles
that are in the path of your vehicle for an exten-
ded period of time.
Up to a speed of approximately 44 mph
(70 km/h), the distance warning function can also react to stationary obstacles, such as stop-
ped or parked vehicles.
Autonomous braking function
If the driver does not react to the distance warn-
ing signal in a critical situation, COLLISION PRE-
VENTION ASSIST PLUS can assist with the
autonomous braking function.
The autonomous braking function:
Rgives the driver more time to react to critical
driving situations
Rcan help the driver to avoid an accident or
Rreduces the effects of an accident
Vehicles without DISTRONIC PLUS: the
autonomous braking function is available in the
following speed ranges:
Rfrom 4 mph (7 km/h) to approx. 65 mph
(105 km/h) for moving objects
Rfrom 4 mph (7 km/h) to approx. 31 mph
(50 km/h) for stationary objects
Vehicles with DISTRONIC PLUS: the autono-
mous braking function is available in the follow-
ing speed ranges:
Rfrom 4 mph (7 km/h) to approximately
124 mph (200 km/h) for moving objects
Rfrom 4 mph (7 km/h) to approximately
31 mph (50 km/h) for stationary objects
Due to the nature of the system, particularly
complicated but non-critical driving conditions
may also cause the Autonomous Braking Func-
tion to intervene.
If the autonomous braking function requires a
particularly high braking force, preventative
passenger protection measures (PRE-SAFE
®)
are activated simultaneously (Ypage 48).
Adaptive Brake Assist
General information
iObserve the "Important safety notes" sec-
tion (Ypage 52).
With the help of adaptive Brake Assist, the dis-
tance warning signal can detect obstacles that
are in the path of your vehicle for an extended
period of time.
If adaptive Brake Assist detects a risk of colli-
sion with the vehicle in front, it calculates the
braking force necessary to avoid a collision. If
you apply the brakes forcefully, adaptive Brake
54Driving safety systems
Safety