MERCEDES-BENZ S-Class COUPE 2017 C217 Repair Manual

Replacechild restrain tsystems whic hhav e
been damaged or subjecte dto aload in an
acciden tas soo nas possible. Hav eth esecur-
ing systems on th echild restrain tsystem
checke dat aqualified specialist workshop,
before you instal l achild restrain tsystem
again .
The securin gsystems of child restrain tsystems
are:
Rth eseat belt system
Rth eLATCH-type (ISOFIX) securin grings
Rth eTop Tether anchorages
If it is absolutely necessar yto carry achild on
th efront-passenger seat ,be sur eto observ eth e
information on th e"Occupant Classification
Syste m(OCS)" (
Ypage 49). There you will also
fin dinformation on deactivating th efront-
passenger fron tair bag.
All child restrain tsystems mus tmee tth efol -
lowin gstandards :
RU.S. Federal Motor Vehicl eSafet yStandards
21 3and 22 5
RCanadian Motor Vehicl eSafet yStandards
21 3and 210. 2
Confirmation that th echild restrain tsystem cor-
responds to th estandards can be foun don an
instruction label on th echild restrain tsystem.
This confirmation can also be foun din th einstal -
lation instruction sthat are included wit hth e
child restrain tsystem.
Observ eth ewarning labels in th evehicl einte-
rio rand on th ech ild re
strain
tsystem.
LATCH-type (ISOFIX) child seat secur-
ing system
GWARNIN G
LATCH-type (ISOFIX) child restrain tsystems
do no toffer sufficien tprotective effec tfor
children whos eweigh tis greate rthan 48 lbs
(22 kg )who are secured usin gth esafet ybelt
integrate din th echild restrain tsystem. In th e
event of an accident, achild might no tbe
restrained correctly. This poses an increased
ris kof injury or eve nfatal injury.
If th echild weigh smor ethan 48 lbs (22 kg),
only use LATCH-type (ISOFIX) child restrain t
systems withwhic hth echild is also secured
wit hth evehicl eseat belt .Als osecure th e
child restrain tsystem wit hth eTop Tether
belt ,if available.
Always comply wit hth emanufacturer' sinstal -
lation and operating instruction sfor th echild
restrain tsystem used .
Befor eevery trip, mak esur ethat th eLATCH -
typ e(ISOFIX) child restrain tsystem is engage d
correctl yin bot hLATCH-type (ISOFIX) securin g
rings
LATCH-type (ISOFIX) securin grings 0044on th e
rear seat sare covered by foldin gupholstere d
lining 0087withVelcro fastening.
XFold upholstere dlining 0087upwards.
XTurn support 0043by 90°.
Upholstere dlining 0087remain sfolded
upwards.
XInstall th eLATCH-type (ISOFIX) child restrain t
system on bot hLATCH-type (ISOFIX) securin g
rings 0044.
Afte ryou hav eremove dth eLATCH-type (ISO-
FIX) child restrain tsystem, you mus ttur nsup-
por t0043 on upholstere dlining 0087by 90 °again .
The nfol dupholstery lining 0087down .
ISOFIX is astandardize dsecurin gsystem for
specially designed child restrain tsystems on
th erear seats. LATCH-type (ISOFIX) securin g
rings 0044for two LATCH-type (ISOFIX) child
restrain tsystems are installed on th elef tand
right rear seats.
Non-LATCH-typ e(ISOFIX) child seat smay also
be used and can be installed usin gth evehicle's
seat belt system. Install th echild seat according
to th emanufacturer' sinstructions.
Children in the vehicle59
Safety
Z

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.
Top Tether anchorages
The Top Tether anchorage points are installed in
the rear compartment behind the head
restraints on the parcel shelf.
XMove head restraint 0043upwards
(Ypage 94).
XFold up cover 0044of Top Tether anchorage 0087.
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 belt0083under head
restraint 0043between the two head restraint
bars.
XHook Top Tether hook 0085of Top Tether belt
0083 into Top Tether anchorage 0087.
Make sure that Top Tether belt 0083is not twis-
ted.
XTension Top Tether belt 0083. Always comply
with the child restraint system manufactur-
er's installation instructions when doing so.
XFold down cover 0044of Top Tether anchorage
0087.
XIf necessary, move head restraint 0043back
down again slightly (Ypage 94). Make sure
that you do not interfere with the correct rout-
ing of Top Tether belt 0083.
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-passenger seat. For this reason,
Mercedes-Benz strongly advises that you install
the child restraint system on a rear seat.
If it is absolutely necessary to install a child
restraint system on the front-passenger seat,
always observe the instructions and safety
notes on the "Occupant Classification System
(OCS)" (
Ypage 49).
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 42 )is the front-
passenger front air bag deactivated.
Always observe the child restraint system man-
ufacturer's installation and operating instruc-
tions.
60Children in the vehicle
Safety

Forward-facing child restraint system
If you secureachild in aforward-facing child
restrain tsystem on th efront-passenger seat ,
always mov eth efront-passenger seat as far
bac kas possible .Full yretrac tth eseat cushion
length. The entire base of th echild restrain tsys-
te m must always res ton th eseat cushion of th e
front-passenger seat .The backrest of th echild
restrain tsystem must lie as flat as possible
against th ebackrest of th efront-passenger
seat .The child restrain tsystem must no ttouch
th eroo for be subjected to aload by th ehead
restraint. Adjus tth eangle of th eseat backrest
and th ehead restrain tposition accordingly.
Always mak esure that th eshoulder belt strap is
correctly routed from th eseat-belt extender of
th efront-passenger seat to th eshoulder belt
guide on th echild restrain tsystem. The shoul-
der belt strap must be routed forwards from th e
retracte dseat-belt extender for th efront-
passenger seat .
Always observ eth echild restrain tsystem man -
ufacturer' sinstallation and operating instruc-
tions.
Pets in the vehicle
GWARNIN G
If you leav eanimals unattended or unsecured
in th evehicle, they could press buttons or
switches, for example .
As aresult ,they could:
Ractivat evehicl eequipmen tand become
trapped ,for example
Ractivat eor deactivat esystems ,thereby
endangering other road user s
Unsecured animals could also be flun garoun d
th evehicl ein th eevent of an acciden tor sud-
den steering or braking ,thereby injurin gvehi-
cle occupants. Ther eis aris kof an acciden t
and injury.
Never leav eanimals unattended in th evehi-
cle .Always secure animals properly durin g
th ejourney, e.g. use asuitable animal trans -
por tbox .
Driving safety systems
Overview of driving safety systems
In this section ,you will fin dinformation about
th efollowin gdriving safet ysystems :
RABS (Anti-lock Braking System)
(Ypage 62)
RBA S (B rakeAssist System) (Ypage 62)
RBASPLU S (B rake Assist System PLUS) wit h
Cross-Traffic Assist (Ypage 62)
RCOLLISION PREVENTION ASSIST PLU S
(Ypage 64 )
RESP®(Electronic StabilityProgram )
(Ypage 66)
REB D (Electronic Brak eforce Distribution )
(Ypage 68 )
RADAPTIV EBRAKE (Ypage 68 )
RPRE-SAF E®Brake(Ypage 68 )
RSTEERCONTROL (Ypage 70)
Important safety notes
If you fail to adapt your driving style or if you are
inattentive, th edriving safet ysystems can nei-
ther reduce th eris kof an acciden tno roverride
th elaws of physics .Drivin gsafet ysystems are
merely aids designed to assist driving .You are
responsible for maintainin gth edistanc eto th e
vehicl ein front, for vehicl espeed, for braking in
goo dtime, and for staying in lane. Always adapt
your driving style to suit th eprevailing road and
weather condition sand maintai n asafedistanc e
from th evehicl ein front. Drive carefully.
The driving safet ysystems describe donly work
as effectivel yas possible when there is ade-
quat econtact between th etires and th eroad
surface .Pay particular attention to th einforma-
tion regarding tires ,recommended minimum
tire tread depths etc. in th e"Wheels and tires "
section (
Ypage 303).
In wintr ydriving conditions, 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.
Driving safety systems61
Safety
Z

ABS (Anti-lock Braking System)
Gene ral inform ation
ABSregulates brak epressur ein suc h away that
th ewheels do no tloc kwhen you brake. This
allows you to continu esteering th evehicl ewhen
braking .
The 0025 ABSwarning lamp in th einstrumen t
cluste rlights up when th eignition is switched
on .It goe sout when th eengin eis running.
AB Sworks from aspee dof about 5mph
(8 km/h), regardless of road-surface conditions.
AB Sworks on slipper ysurfaces, eve nwhen you
only brak egently.
Import ant safety notes
iObserveth e"Importan tsafet ynotes" sec -
tion (Ypage 61).
GWARNIN G
If AB Sis faulty, th ewheels could loc kwhen
braking .The steerabilit yand braking charac -
teristics may be severely impaired. Addition -
ally, further drivin gsafet ysystems are deac -
tivated. There is an increased danger of skid-
din gand accidents .
Drive on carefully. Hav eAB Schecke dimme-
diately at aqualified specialis tworkshop .
When AB Sis malfunctioning ,other systems ,
includin gdrivin gsafet ysystems ,will also
become inoperative. Observ eth einformation
on th eAB Swarning lamp (
Ypage 234) and dis-
play message swhic hmay be shown in th e
instrumen tcluste r (
Ypage 204).
Braking
XIf ABS intervenes: continueto depress th e
brak epedal vigorously until th ebraking sit -
uation is over.
XTo make afull brak eapplication: depress
th ebrak epedal wit hfull force .
If AB Sintervenes when braking ,you will fee l a
pulsing in th ebrak epedal .
The pulsating brak epedal can be an indication
of hazardous road conditions, and function sas a
reminder to tak eextr acar ewhile driving.
BAS (Brake Assist System)
Gene ral inform ation
BASoperate sin emergenc ybraking situations.
If you depress th ebrak epedal quickly, BA S
automatically boosts th ebraking force ,thus
shortening th estopping distance.
Imp ortant safety notes
iObserv eth e"Importan tsafet ynotes" sec -
tion (Ypage 61) .
GWARNIN G
If BA Sis malfunctioning ,th ebraking distanc e
in an emergenc ybraking situation is
increased. There is aris kof an accident.
In an emergenc ybraking situation ,depress
th ebrak epedal wit hfull force .AB Sprevents
th ewheels from locking .
Brakes
XKeepth 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.
BAS PLUS (Brake Assist System
PLUS) with Cross-Traffic Assist
Genera l inform ation
BASPLU Scan help you to minimiz eth eris kof a
collision wit h avehicl eor apedestrian and
reduce th eeffects of suc h acollision .If BA S
PLU Sdetects adanger of collision ,you are
assisted when braking .
iPay attention to theimportant safet ynote s
in th e"Drivin gsafet ysystems "section
(
Ypage 61).
BA SPLU Sis only available in vehicles wit hth e
Drivin gAssistance Plus package.
Fo rBA SPLU Sto assist you when driving, th e
radar sensor system and th ecamera system
mus tbe operational.
62Driving safety systems
Safety

With the help of a sensor system and a camera
system, BAS PLUS can detect obstacles:
Rthat are in the path of your vehicle for an
extended period of time
Rthat cross the path of your vehicle
In addition, pedestrians in the path of your vehi-
cle can be detected.
BAS PLUS detects pedestrians by using typical
characteristics such as the body contours and
posture of a person standing upright.
If the radar sensor system or the camera system is malfunctioning, BAS PLUS functions are
restricted or no longer available. The brake sys-
tem is still available with complete brake boost-
ing effect and BAS.
iObserve the restrictions described in the
"Important safety notes" section
(
Ypage 63).
Important safety notes
GWARNING
BAS PLUS cannot always clearly identify
objects and complex traffic situations.
In such cases, BAS PLUS may:
Rintervene unnecessarily
Rnot intervene
There is a risk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake. Terminate the
intervention in a non-critical driving situation.
GWARNING
BAS PLUS cannot always clearly identify peo- ple, this is especially the case if they are mov-
ing. BAS PLUS cannot intervene in these
cases. There is a risk of an accident.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
GWARNING
BAS PLUS does not react:
Rto small people, e.g. children
Rto animals
Rto oncoming vehicles
Rwhen cornering
As a result, BAS PLUS may not intervene in all critical situations. There is a risk of an acci-
dent.
Always pay careful attention to the traffic sit-
uation and be ready to brake.
In the event of snowfall or heavy rain, the rec-
ognition can be impaired.
Recognition by the radar sensor system is also
impaired if:
Rthere is dirt on the sensors or anything else
covering the sensors
Rthere is interference by other radar sources
Rthere are strong radar reflections, for exam-
ple in parking garages
Ra narrow vehicle is traveling in front, e.g. a
motorbike
Ra vehicle is traveling in front on a different line
Rvehicles quickly move into the radar sensor
system detection range
Recognition by the camera system is also
impaired in the event of:
Rdirt on the camera or if the camera is covered
Rglare on the camera system, e.g. from the sun being low in the sky
Rdarkness
Ror if:
-pedestrians move quickly, e.g. into the path
of the vehicle
-the camera system no longer recognizes a
pedestrian as a person due to special cloth-ing or other objects
-a pedestrian is concealed by other objects
-the typical outline of a person is not distin-
guishable from the background
Following damage to the front end of the vehicle,
have the configuration and operation of the
radar sensors checked at a qualified specialist
workshop. This also applies to collisions at slow
speeds where there is no visible damage to the
front of the vehicle.
Following damage to the windshield, have the
configuration and operation of the camera sys-
tem checked at a qualified specialist workshop.
Driving safety systems63
Safety
Z

Function
To avoid acollision ,BA SPLU Scalculates th e
brak eforce necessar yif:
Ryou approac han obstacle ,and
RBA SPLU Shas detected aris kof collision
When drivin gat aspeed
under20 mph(30 km/h) :if you depress th e
brak epedal, BA SPLU Sis activated. The
increas ein brak epressur ewill be carried out at
th elast possible moment.
When drivin gat aspeed
abov e20 mph(30 km/h) :if you depress th e
brak epedal sharply, BA SPLU Sautomatically
raises th ebrak epressur eto avalue adapted to
th etraffic situation .
BA SPLU Sprovides brakin gassistanc ein haz -
ardous situation swit hvehicles in fron twithin a
speed range between 4mph (7 km/h) and
15 5mph (25 0km/h).
At speeds of up to approximately 44 mph
(70 km/h), BA SPLU Scan reac tto :
Rstationary objects in th epat hof your vehicle,
e.g. stoppe dor parked vehicles
Rpedestrian sin th epat hof your vehicl e
Robstacles crossin gyour path, whic hmov ein
th edetection range of th esensor sand are
recognized by them
iIf BA SPLU Sdemand sparticularly high brak -
in g force ,preventative passenger protection
measures (PRE-SAF E
®)are activated simulta-
neousl y (Ypage 55) .
XKeepth ebrak epedal depressed until th e
eme rgenc ybrakin gsituation is over.
AB Sprevents th ewheels from locking .
BA SPLU Sis deactivated and th ebrakes func-
tion as usual, if:
Ryou release th ebrak epedal .
Rthere is no longer aris kof collision .
Rno obstacle is detecte din fron tof your vehi-
cle .
Ryou depress th eaccelerato rpedal .
Ryou activat ekickdown .
COLLISION PREVENTION ASSIST
PLUS
Gene ral informa tion
COLLISION PREVENTION ASSIST PLU Sconsist s
of adistanc ewarnin gfunction wit han autono-
mous brakin gfunction 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 audibl ecollision warning,
autonomous brakin gcan be initiated in critica l
situations. If you apply th ebrak eyourself in a
critica lsituation ,th eCOLLISION PREVENTION
ASSIST PLU Sadaptive Brake Assis tassist syou.
Impor tant safety notes
In particular, th edetection of obstacles can be
impaire dif:
Rthere is dir ton th esensor sor anythin gelse
coverin gth esensor s
Rthere is snow or heav yrain
Rthere is interferenc eby other rada rsource s
Rthere are stron grada rreflections, for exam-
ple in parkin ggarages
Ranarrow vehicl eis travelin gin front, e.g. a
motorbik e
Ravehicl eis travelin gin fron ton adifferen tlin e
Rthevehicl eis ne wor after aservic eon th e
COLLISION PREVENTION ASSIST PLU Ssys-
te m
Observ eth enote sin th esection on breaking -
in (
Ypage 120).
Following damage to th efron ten dof th evehicle,
hav eth econfiguration and operation of th e
rada rsensor checke dat aqualified specialist
workshop .This also applie sto collision sat slow
speeds wher ethere is no visible damage to th e
fron tof th evehicle.
Activating/deactivating
The COLLISION PREVENTION ASSIST PLU Sis
automatically active after switchin gon th eigni-
tion .
64Driving safety systems
Safety

You can activate or deactivate COLLISION PRE-
VENTION ASSIST PLUS in the on-board com-
puter (
Ypage 198). When deactivated, the dis-
tance warning function and the autonomous
braking function are also deactivated.
If COLLISION PREVENTION ASSIST PLUS is
deactivated, the 00D4symbol appears in the
assistance graphics display.
Distance warning function
General information
iObserve the "Important safety notes" sec-
tion for driving safety systems (Ypage 61).
The distance warning function can help you to
minimize the risk of a front-end collision with a
vehicle ahead or reduce the effects of such a
collision.
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.
If the distance warning function detects that
there is a risk of a collision, you will be warned
visually and acoustically.
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 00BA distance warning lamp will light up in
the instrument cluster.
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.
Important safety notes
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.
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.
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 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
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 55).
Driving safety systems65
Safety
Z

Adaptive Brake Assist
Generalinformation
iObserv eth e"Importan tsafet ynotes" sec -
tion (Ypage 61) .
Wit hth ehelp of adaptive Brake Assist, th edis-
tance warning signal can detec tobstacles that
are in th epat hof your vehicl efor an extended
period of time.
If adaptive Brake Assis tdetects aris kof colli-
sion wit hth evehicl ein front, it calculates th e
braking force necessar yto avoi d acollision .If
you apply th ebrakes forcefully, adaptive Brake
Assis twill automatically increas eth ebraking
force to alevel suitable for th etraffic conditions.
Adaptive Brake Assis tprovides braking assis-
tance in hazardous situation sat speeds abov e
4 mph (7 km/h). It uses radar sensor technology
to assess th etraffic situation .
Up to aspee dof approximately 15 5mph
(25 0km/h), Adaptive Brake Assis tis capable of
reacting to moving objects that hav ealready
been detecte das suc hat least once ove rth e
period of observation .
Up to aspee dof approximately 44 mph
(70 km/h), Adaptive Brake Assis treacts to sta-
tionary obstacles.
If adaptive Brake Assis tdemand sparticularly
high braking force ,preventative passenger pro -
tection measures (PRE-SAF E
®)are activated
simultaneously (Ypage 55).
XKeepth ebrak epedal depressed until th e
emergenc ybraking situation is over.
AB Sprevents th ewheels from locking .
The brakes will wor knormally again if:
Ryou release th ebrak epedal .
Rthere is no longer any danger of acollision .
Rno obstacle is detecte din fron tof your vehi-
cle .
Adaptive Brake Assis tis then deactivated.
Important safety notes
GWARNIN G
Adaptive Brake Assis tcanno talways clearly
identify objects and complex traffic situa-
tions.
In suc hcases, Adaptive Brake Assis tcan :
Rinterven eunnecessarily
Rno tinterven e
There is aris kof an accident.
Always pay careful attention to th etraffic sit -
uation and be read yto brake. Terminate th e
intervention in anon-critical drivin gsituation .
GWARNIN G
Adaptive Brake Assis tdoes no treact:
Rto people or animals
Rto oncomin gvehicles
Rto crossing traffic
Rwhen cornering
As aresult ,th eAdaptive Brake Assis tmay no t
interven ein all critical conditions. There is a
ris kof an accident.
Always pay careful attention to th etraffic sit -
uation and be read yto brake.
Due to th enature of th esystem, particularly
complicated but non-critical drivin gcondition s
may also caus eBrake Assis tto intervene.
If adaptive Brake Assis tis no tavailable due to a
malfunction in th eradar sensor system, th e
brak esystem remain savailable wit hfull brak e
boosting effec tand BAS.
ESP®(Electron ic Stability Program)
Gene ral notes
iObserv eth e"Importan tsafet ynotes" sec -
tion (Ypage 61).
ES P
®monitors drivin gstabilit yand traction ,i.e .
powe rtransmission between th etires and th e
road surface.
If ES P
®detects that th evehicl eis deviating from
th edirection desired by th edriver ,on eor mor e
wheels are braked to stabiliz eth evehicle. The
engin eoutput is also modifie dto keep th evehi-
cle on th edesired cours ewithin physical limits .
ES P
®assist sth edriver when pullin gaway on
wet or slipper yroads. ES P®can also stabiliz e
th evehicl eduring braking .
ETS/4ETS (Electron ic Traction System)
iObserveth e"Importan tsafet ynotes" sec -
tion (Ypage 61).
66Driving safety systems
Safety

ETS traction control is part of ESP®. On vehicles
with 4MATIC, 4ETS is part of ESP®.
Traction control brakes the drive wheels indi-
vidually if they spin. This enables you to pull
away and accelerate on slippery surfaces, for
example if the road surface is slippery on one
side. In addition, more drive torque is transfer-
red to the wheel or wheels with traction.
Traction control remains active, even if you
deactivate ESP
®.
Important safety notes
GWARNING
If ESP
®is malfunctioning, ESP®is unable to
stabilize the vehicle. Additionally, further driv-
ing safety systems are deactivated. This
increases the risk of skidding and an accident.
Drive on carefully. Have ESP
®checked at a
qualified specialist workshop.
If the 00BB ESP
®OFF warning lamp lights up
continuously, then ESP®is deactivated.
If the 00E5 ESP®warning lamp lights up contin-
uously, ESP®is not available due to a malfunc-
tion.
Observe the information on warning lamps
(
Ypage 234) and display messages which may
be shown in the instrument cluster
(
Ypage 204).
Only use wheels with the recommended tire
sizes. Only then will ESP
®function properly.
Characteristics of ESP®
General information
If the 00E5 ESP warning lamp goes out before
beginning the journey, ESP®is automatically
active.
If ESP
®intervenes, the 00E5ESP®warning lamp
flashes in the instrument cluster.
If ESP
®intervenes:
XDo not deactivate ESP®under any circum-
stances.
XOnly depress the accelerator pedal as far as
necessary when pulling away.
XAdapt your driving style to suit the prevailing
road and weather conditions.
ECO start/stop function
The ECO start/stop function switches the
engine off automatically when the vehicle stops
moving. The engine starts automatically when
the driver wants to pull away again. ESP
®
remains in its previously selected status, e.g. if
ESP®was deactivated before the engine was
automatically switched off.
Deactivating/activating ESP®
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 61).
You can select between the following states of
ESP
®:
RESP®is activated.
RESP®is deactivated.
GWARNING
If you deactivate ESP
®, ESP®no longer sta-
bilizes the vehicle. There is an increased risk
of skidding and an accident.
Only deactivate ESP
®in the situations descri-
bed in the following.
It may be best to deactivate ESP
®in the follow-
ing situations:
Rwhen using snow chains
Rin deep snow
Ron sand or gravel
Spinning the wheels results in a cutting action
which provides better grip.
iActivate ESP®as soon as the situations
described above no longer apply. ESP®will
otherwise not be able to stabilize the vehicle if
the vehicle starts to skid or a wheel starts to
spin.
!Avoid spinning the driven wheels for an
extended period with ESP®deactivated. You
could otherwise damage the drivetrain.
Deactivating/activating ESP®
You can deactivate or activate ESP®via the on-
board computer (Ypage 197).
ESP®deactivated:
The 00BB ESP®OFF warning lamp in the instru-
ment cluster lights up.
Driving safet ysystem s67
Safety
Z

ESP®activated:
The 00BB ESP®OFF warning lamp in the instru-
ment cluster goes out.
Characteristics when ESP®is deactivated
If ESP®is deactivated and one or more wheels
start to spin, the 00E5ESP®warning lamp in the
instrument cluster flashes. In such situations,
ESP
®will not stabilize the vehicle.
If you deactivate ESP®:
RESP®no longer improves driving stability.
REngine torque is no longer limited and the
drive wheels are able to spin.
RTraction control is still activated.
RCOLLISION PREVENTION ASSIST is no longer
available; nor is it activated if you brake firmly
with assistance from ESP
®.
RPRE-SAFE®is no longer available, nor is it
activated if you brake firmly and ESP®inter-
venes.
RPRE-SAFE®Brake is no longer available, it is
also not activated if you brake firmly and ESP®
intervenes.
RESP®still provides support when you brake
firmly.
Crosswind Assist
General information
Vehicles with MAGIC BODY CONTROL: informa-
tion on stabilizing the vehicle in the event of
crosswind (
Ypage 156).
Strong crosswind gusts can impair the ability of
your vehicle to drive straight ahead. The cross-
wind driving assistance function integrated in
ESP
®noticeably reduces these impairments.
ESP®intervenes automatically according to the
direction and intensity of the crosswinds affect-
ing your vehicle.
ESP
®intervenes with stabilizing braking to
assist you in keeping the vehicle in the lane.
Crosswind Assist is active at vehicle speeds
above 50 mph (80 km/h)when driving straight
ahead or cornering gently.
Important safety notes
Crosswind Assist does not work if ESP®is
switched off or deactivated because of a mal-
function.
EBD (electronic brake force distribu-
tion)
General information
EBD monitors and controls the brake pressure
on the rear wheels to improve driving stability
while braking.
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 61).
GWARNING
If EBD is malfunctioning, the rear wheels can
lock, e.g. under full braking. This increases the
risk of skidding and an accident.
You should therefore adapt your driving style
to the different handling characteristics. Have
the brake system checked at a qualified spe-
cialist workshop.
Observe information regarding indicator and
warning lamps (
Ypage 234) as well as display
messages (Ypage 206).
ADAPTIVE BRAKE
ADAPTIVE BRAKE enhances braking safety and
offers increased braking comfort. In addition to
the braking function, ADAPTIVE BRAKE also has
the HOLD function (
Ypage 154) and hill start
assist (Ypage 124).
PRE-SAFE®Brake
General information
PRE-SAFE®Brake can help you to minimize the
risk of a collision with a vehicle ahead or a
pedestrian, and reduce the effects of such a
collision. If PRE-SAFE
®Brake has detected a risk
of collision, you will be warned visually and
acoustically as well as by automatic braking.
iPay attention to the important safety notes
in the "Driving safety systems" section
(
Ypage 61).
PRE ‑SAFE
®Brake is only available in vehicles
with the Driving Assistance Plus package.
68Driving safety systems
Safety