MERCEDES-BENZ C-Class COUPE 2017 CL205 Repair Manual

The securing systems of child restraint systems
are:
Rthe seat belt system
Rthe LATCH-type (ISOFIX) securing rings
Rthe Top Tether anchorages
If it is absolutely necessary to carry achild on
the front-passenger seat, be sure to observe the
information on the "Occupant Classification
System (OCS)" (
Ypage 49). There you will also
find information on deactivatin gthe 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.
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 ,achild 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.
XInstall the LATCH-type (ISOFIX) child restraint
system on both LATCH-type (ISOFIX) securing
rings :.
ISOFIX is astandardized 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
aL ATCH-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 alwaysbeu sed.
Important safety notes
GWARNING
If the rear seat backrest sare not locked, they
could fold forwards in the event of an acci-
dent, heavy braking or sudden changes of
direction .Asaresult, child restraint systems
cannot perform their intended protective
function. Rear seat backrest sthat are not
locked can also cause additional injuries, e.g.
Children in the vehicle59
Safety
Z

in the eventofanaccident.This poses an
increased risk of injury or even fatal injury.
Always lock rear seat backrestsa fter instal-
ling aTop 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 instrumentc luster.Awarnin gtone
also sounds.
Top Tether anchorages
Top Tether anchorage points =are installed in
the rear compartmentb ehindthe head
restraint sonthe parce lshelf.
XMove head restraint :upwards.
XFold up cover ;of Top Tether anchorage =.
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 Aunder head
restraint :betwee nthe two head restraint
bars.
XHook Top Tether hook ?of Top Tether belt
A intoT op Tether anchorage =.
Make sure that Top Tether belt Ais not twis-
ted.
XTension Top Tether belt A.Always comply
with the child restraint system manufactur-
er's installation instructions when doing so.
XFold down cover ;of Top Tether anchorage
=.
XIf necessary, move head restraint :back
down again slightly. Make sure that you do
not interfere with the correctr outing of Top
Tether belt A.
Child restraint system on th efront-
passenger seat
General notes
Acciden tstatistic sshow that children secured
in the rear seats are safer than children secured
in the front-passenge rseat. For this reason,
Mercedes-Ben zstrongly advises that you install
the child restraint system on arear seat.
If it is absolutely necessary to install achild
restraint system on the front-passenge rseat,
always observe the instructions and safety
notes on the "Occupant Classification System
(OCS)" (
Ypage 49).
You can thus avoid the riskst hat could arise as
ar esult of:
Ran incorrectly categorized personint he front-
passenger seat
Rthe unintentional deactivation of the front-
passenger front air bag
Rthe unsuitable positionin gofthe child
restraint system, e.g. too clos etothe dash-
board
Rearward-facing child restraint system
If it is absolutely necessary to install arearward-
facin gchild restraint system on the front-
passenger seat, always make sure that the
front-passenge rfront air bag is deactivated.
Only if the PASSENGER AI RBAG OFF indicator
lamp is permanently lit (
Ypage 42) is the front-
passenger front air bag deactivated.
60Children in th evehicle
Safety

Alwaysobserve the child restraint system man-
ufacturer's installatio nand operating instruc-
tions.
Forward-facin gchild restrain tsystem
If it is absolutely necessary to instal laforward-
facing child restraint system on the front-
passengers eat, always move the front-
passengers eata sfar back as possible. Fully
retract the sea tcushion length. The entire base
of the child restraint system must always res ton
the sea tcushion of the front-passenger seat.
The backres tofthe child restraint system must
li easf lata sp ossibl eagain st the backres tofthe
front-passenger seat. The child restraint system
must not touch the roo forbesubjected to aloa d
by the hea drestraint. Adjust the angle of the
sea tbackres tand the hea drestraint position
accordingly. Alway smakes uret hatt he shoul-
de rb elts trapisc orrectlyrouted from the vehi-
cle belt outle ttothe shoulde rbeltg uide on the
child restraint system .The shoulde rbelts trap
must be routed forwards and downwards from
the vehicl ebelto utlet. If necessary,a djus tthe
vehicl ebelto utle tand the front-passenger seat
accordingly.
Alway sobserve the child restraint system man-
ufacturer's installatio nand operating instruc-
tions.
Pets in the vehicle
GWARNING
If yo uleave animals unattended or unsecured
in the vehicle, they could press buttons or
switches, for example.
As aresult, they could:
Ractivate vehicl eequipment and become
trapped, for example
Ractivate or deactivate systems, thereby
endangering othe rroa du sers
Unsecured animals could also be flung around
the vehicl einthe event of an accident or sud-
de ns teering or braking ,thereb yinjuring vehi-
cle occupants. There is ariskofana ccident
and injury.
Never leav eanimals unattended in the vehi-
cle .Alway ssecur eanimals properly during
the journey ,e.g.u se asuitabl eanimalt rans-
port box.
Driving safety systems
Overvie wofdrivingsafety systems
In thiss ection, yo uwillf ind informatio nabout
the following driving safety systems:
RABS ( Anti-lock Braking System)
(Ypage 62)
RBAS ( Brake Assist System )(Ypage 62)
RBAS PLU SwithC ross-TrafficA ssist (Brake
A ssis tSys tem PLU SwithC ross-TrafficA ssist)
(
Ypage 62)
RCOLLISION PREVENTION ASSIST PLUS
(Ypage 64)
RESP®( E le ctronic Stability Program)
(Ypage 67)
REBD ( Ele ctronic Brake force Dis tribution)
(Ypage 70)
RADAPTIVE BRAK E(Ypage 70)
RPRE-SAFE®Brake (Ypage 70)
RSTEER CONTROL (Ypage 72)
Important safety notes
If youfailtoa dapt your driving style or if yo uare
inattentive, the driving safety system scan nei-
ther reduce the ris kofanaccident nor override
the laws of physics. Driving safety system sare
merel yaidsd esig nedtoa ssistdriving .You are
responsibl efor maintaining the distance to the
vehicl einfront, for vehicl espeed ,for braking in
goo dtime ,and for staying in lane. Alway sadapt
your driving style to suit the prevailing roa dand
weather conditions and maintain asafed istance
from the vehicl einfront. Driv ecarefully.
The driving safety system sdescribe donlyw ork
as effectively as possibl ewhent her eisa de-
quate contact between the tire sand the road
surface. Pa yparticula rattentio ntothe informa-
tio nr egarding tires, recommende dminimum
tire trea ddepths etc. in the "Wheels and tires"
sectio n(
Ypage 316).
In wintry driving conditions, always us ewinter
tire s(M+ Stires) and if necessary,s now chains.
Onlyint hiswaywill the driving safety systems
describe dinthissectio nworkase ffectively as
possible.
Driving safety systems61
Safety
Z

ABS (Anti-lock Braking System)
Gene ralinform ation
ABSregulates brak epressur einsuchaw ay that
th ew heels do no tloc kw hen you brake. This
allows you to continu esteering th evehicl ewhen
braking .
The ! ABSw arning lamp in th einstrumen t
cluste rlights up when th eignition is switched
on .Itg oeso ut when th eengineisr unning.
AB Sw orks from aspee dofa bout5mph
(8 km/h), regardless of road-surface conditions.
AB Sw orks on slipper ysurfaces, eve nwhen you
only brak egently.
Import ant safety notes
iObservethe "Importan tsafet ynotes "sec-
tion (Ypage 61).
GWARNIN G
If AB Sisf aulty, 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 eABS checke dimme-
diately at aqualified specialis tworkshop .
When AB Sismalfunctioning ,other systems ,
includin gdrivin gsafet ysystems ,will also
become inoperative. Observ ethe information
on th eABS warning lamp (
Ypage 249) and dis-
play message swhichm ay be shown in th e
instrumen tcluste r(
Ypage 220).
Braking
XIf ABS intervenes: continuetodepress th e
brak epedal vigorously until th ebraking sit -
uation is over.
XTo make afullb rake application: depress
th eb rak epedal wit hfull force .
If AB Sintervenes when braking ,you will fee la
pulsing in th ebrak epedal .
The pulsating brak epedal can be an indication
of hazardous road conditions, and function sasa
reminder to tak eextra carew hile driving.
BAS (Brak eAssistS ystem)
Gene ralinform ation
BASo perate sinemergenc ybraking situations.
If you depress th ebrak epedal quickly, BA S
automatically boosts th ebraking force ,thu s
shortening th estopping distance.
Imp ortant safety notes
iObserv ethe "Importan tsafet ynotes "sec-
tion (Ypage 61) .
GWARNIN G
If BA Sism alfunctioning ,the braking distanc e
in an emergenc ybraking situation is
increased. There is ariskofana ccident.
In an emergenc ybraking situation ,depress
th eb rak epedal wit hfull force .ABS prevents
th ew heels from locking .
Braking
XKeepthe brak epedal firmly depressed until
th ee mergenc ybraking situation is over.
AB Sp revents th ewheels from locking .
The brakes will function as usual once you
release th ebrak epedal .BAS is deactivated.
BAS PLUS (Brak eAssistS ystem
PLUS)w ith Cross-Traffic Assist
Gene ralinform ation
BASP LUSc an help you to minimiz ethe riskofa
collision wit havehicleorap edestrian and
reduce th eeffects of suc hacollision .IfBAS
PLU Sdetects adanger of collision ,you are
assisted when braking .
iPay attention to theimportant safet ynotes
in th e"Drivin gsafet ysystems "section
(
Ypage 61) .
BA SP LUSiso nlya vailable on vehicles wit hthe
Drivin gAssistance package.
Fo rB AS PLU Stoa ssist you when driving, th e
radar sensor system and th ecamera system
mus tbeo perational.
62Driving safety systems
Safety

With the help ofasensor system and acamera
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 detect spedestrians by using typical
characteristic ssuch as the body contours and
posture of aperson standin gupright.
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 completeb rake boost-
ing effect and BAS.
iObserve the restriction sdescribed in the
"Important safety notes" sec-
tion“ (
Ypage 63).
Important safety notes
GWARNING
BAS PLUS cannot alwaysc learly identify
object sand complex traffic situations.
In such cases, BAS PLUS may:
Rintervene unnecessarily
Rnot intervene
There is arisk of an accident.
Always pay careful attention to the traffic sit- uation and be ready to brake. Terminat ethe
intervention in anon-critical driving situation.
GWARNING
BAS PLUS cannot alwaysc learly identifypeo-
ple, this is especially the case if they are mov-
ing. BAS PLUS cannot intervene in these
cases. There is arisk 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 aresult, BAS PLUS may not intervene in all
critical situations. There is arisk 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 sensor soranything else
coveringt he sensors
Rthere is interference by other radar sources
Rthere are stron gradar reflections, for exam-
ple in parking garages
Ran arrow vehicle is travelin ginfront, e.g. a
motorbike
Rav ehicle is travelin ginfrontonad ifferentline
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 aperson due to special cloth-
ing or other objects
-ap edestrian is concealed by other objects
-the typical outline of aperson is not distin-
guishable from the background
Following damage to the fronte nd of the vehicle,
have the configuration and operation of the
radar sensor schecked at aqualified specialist
workshop. This also applies to collisions at slow
speeds where there is no visible damage to the
frontoft he vehicle.
Following damage to the windshield, have the
configuration and operation of the camera sys-
tem checked at aqualified specialist workshop.
Driving safety systems63
Safety
Z

Function
To avoidacollision ,BAS PLU Scalculates th e
brak eforce necessar yif:
Ryou approac hanobstacle ,and
RBA SP LUSh as detected ariskofc ollision
When drivin gatas peed under 20 mp h
(30 km/h ):ifyou depress th ebrak epedal, BA S
PLU Sisa ctivated. The increas einbrakepres-
sure will be carried out at th elast possible
moment.
When drivin gatas peed abov e20mph
(30 km/h) :ifyou depress th ebrak epedal
sharply, BA SPLUSa utomatically raises th e
brak epressur etoav alue adapted to th etraffic
situation .
BA SP LUSp rovide sbraking assistanc einhaz-
ardous situation swithv ehicles in fron twithin a
spee drange between 4mph (7 km/h) and
15 5m ph (25 0km/ h).
At speeds of up to approximately 44 mph
(70 km/h), BA SPLUSc an reac tto:
Rstationary object sinthepat hofy our vehicle,
e.g. stoppe dorparked vehicles
Rpedestrian sinthepat hofy our vehicl e
Robstacles crossing your path, whic hmovei n
th ed etection range of th esensor sand are
recognize dbythem
iIf BA SPLUSd emand sparticularly high brak -
ing force, preventative passenger protection
measures (PRE-SAF E
®)are activated simulta-
neously (Ypage 55).
XKeepthe brak epedal depressed until th e
emergenc ybraking situation is over.
AB Sp reve
nts th
ewheels from locking.
BA SP LUSisd eactivated and th ebrakes func-
tion as usual again ,if:
Ryou release th ebrak epedal.
Rthere is no longer ariskofc ollision .
Rno obstacle is detected in fron tofyour vehi-
cle .
Ryou depress th eaccelerato rpedal
Ryou activat ekickdown .
COLLISIONP REVENTIO NASSIST
PLUS
General information
iObserv ethe "Importan tsafet ynotes "sec-
tion (Ypage 61).
COLLISION PREVENTION ASSIST PLU Sconsists
of ad istanc ewarning function wit hanautono-
mous braking function and adaptive Brake
Assist .
COLLISION PREVENTION ASSIST PLU Scan help
you to minimiz ethe riskofaf ront-end collision
wit hav ehicleahead or reduce th eeffect sof
suc hac ollision .
If COLLISION PREVENTION ASSIST PLU S
detect stha tthe re is ariskofac ollision ,you will
be warned visually and acoustically. If you do no t
reac ttot hevisual and audible collision warning ,
autonomous braking can be initiate dincritical
situations. If you apply th ebrak eyourself in a
critical situation ,the COLLISION PREVENTION
ASSIST PLU Sadaptive Brake Assist assist syou.
Important safety notes
In particular, th edetection of obstacles can be
impaired if:
Rthere is dirt on th esensor soranythin gelse
covering th esensor s
Rthere is snow or heav yrain
Rthere is interferenc ebyother radar sources
Rthere are stron gradar reflections, for exam-
ple in parking garages
Ran arrow vehicl etraveling in front, e.g. a
motorbike
Rav ehicl etraveling in fron tonadifferent lin e
Rnewv ehicles or after aservic eont heCOLLI-
SION PREVENTION ASSIST PLU Ssystem
Observ ethe important safet ynotes in the
"Breaking-in notes" section (
Ypage 130).
Followin gdamag etothefron tend of th evehicle,
have th econfig uration and operation of th e
radar sensor checked at aqualified specialist
workshop. This also applie stocollision satslow
speeds wher ethere is no visible damag etothe
fron toft hevehicle.
64Driving safety systems
Safety

Activating/deactivating
The COLLISION PREVENTION ASSIST PLUSis
automatically active after switching on th eigni-
tion .
You can activat eordeactivat eCOLLISION PRE -
VENTION ASSIST PLU Sintheon-board com-
puter (
Ypage 212). 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 sinthe
assistanc egraphic sdisplay.
Distance warning function
Genera linformation
The distanc ewarning function can help you to
minimiz ethe riskofaf ront-end collision wit ha
vehicl eahead or reduce th eeffects of suc ha
collision .Ifthedistanc ewarning function
detects that there is ariskofac ollision ,you will
be warned visually and acoustically.
Important safety notes
iObserv ethe "Importan tsafet ynotes "sec-
tion for drivin gsafet ysystems (Ypage 61).
GWARNIN G
The distanc ewarning function does no treact:
Rto people or animals
Rto oncomin gvehicles
Rto crossing traffic
Rwhen cornering
Thus ,the distanc ewarning function canno t
provid eawarning in all critical situations.
There is ariskofana ccident.
Always pay careful attention to th etraffic sit -
uation and be read ytob rake.
GWARNIN G
The distanc ewarning function canno talways
clearly identify objects and complex traffic
situations.
In suc hcases, th edistanc ewarning function
may:
Rgiv eanu nnecessary warning
Rnotg iveaw arning
There is ariskofana ccident.
Always pay careful attention to th etraffic sit -
uation and do no trelys olely on th edistanc e
warning function .
Function
Starting ataspee dofa pproximately 4mph
(7 km/h), th edistanc ewarning function warn s
you if you rapidly approac havehicl einfront.An
intermittent warning tone will then sound, and
th e· distanc ewarning lamp will ligh tupin
th ei nstrumen tcluster.
XBrake immediately in order to increas ethe
distanc efromt hevehicl einfront.
or
XTak eevasive action ,provided it is saf etodo
so.
Due to th enature of th esystem, particularly
complicated but non-critical drivin gconditi ons
may also caus ethe system to display awarning .
Wit hthe help of th eradar sensor system, th e
distanc ewarning function can detec tobstacles
that are in th epathofy our vehicl efor an exten-
ded period of time.
Up to aspee dofa pproximately 44 mph
(70 km/h), th edistanc ewarning function can
also reac ttostationary obstacles, suc hasstop-
ped or parked vehicles.
Aut onom ous braking function
If thedriver does no treac ttot hedistanc ewarn-
ing signal in acritical situation ,COLLISION PRE -
VENTION ASSIST PLU Scan assist wit hthe
autonomous braking function .
The autonomous braking function :
Rgives thedriver mor etimetor eacttoc ritical
drivin gsituation s
Rcan help th edriver to avoi danacciden tor
Rreduce sthe effects of an acciden t
Vehicles withou tDISTRONIC PLUS :th e
autonomous braking function is available in th e
followin gspee dranges :
R4-65m ph (7-105 km/h) for moving objects
R4-31m ph (7-50km/h) for stationary
objects
Driving safety systems65
Safety
Z

Vehicles with DISTRONICPLUS:the autono-
mou sbraking function is available in the follow-
ing speed ranges:
R4-1 24 mph (7 -200 km/h )for moving
objects
R4-31m ph (7-50km/h)for stationary
objects
Due to the nature of the system, particularly
complicate dbutnon-critica ldriving conditions
may also cause the Autonomous Braking Func-
tion to intervene.
If the autonomous braking function requires a
particularly hig hbraking force ,preventative
passenger protectio nmeasures (PRE-SAFE
®)
are activate dsimultaneously (Ypage 55).
Adaptive Brake Assist
General information
iObserve the "Important safety notes "sec-
tion (Ypage 61).
With the hel pofadaptive Brake Assist, the dis-
tance warning signal can detect obstacles that
are in the path of your vehicl efor an extended
perio doft ime.
If adaptive Brake Assist detects ariskofc olli-
sio nw itht he vehicl einfront, it calculate sthe
braking force necessary to avoid acollision. If
yo ua pply the brakes forcefully ,adapt ive Brake
Assist will automaticall yincreas ethe braking
force to alev el suitabl efor the traffic conditions.
Adaptive Brake Assist provides braking assis-
tance in hazardouss ituations at speeds above
4m ph (7 km/h). It uses radar sensor technology
to asses sthe traffic situation.
Up to aspeed of approximately 155 mph
(250 km/h), adaptive Brake Assist is capable of
reacting to moving objects that have already
bee ndetected as such at leas tonce ove rthe
perio dofo bservation.
Up to aspeed of approximately 44 mph
(70 km/h),a daptive Brake Assist reacts to sta-
tionary obstacles.
If adaptive Brake Assist demand sparticularly
hig hb raking force ,preventative passenger pro-
tectio nmeasures (PRE-SAFE
®)are activated
simultaneously (Ypage 55).
XKee pthe brake pedal depressed unti lthe
emergency braking situation is over.
ABS prevents the wheel sfrom locking. The brakes wi
ll w
ork normall
yagain if:
Ryour elease the brake pedal.
Rthere is no longer any danger of acollision.
Rno obstacl eisdetected in front of your vehi-
cle.
Adaptive Brake Assist is then deactivated.
Important safety notes
iObserve the "Important safety notes "sec-
tion for driving safety systems (Ypage 61).
GWARNING
Adaptive Brake Assist canno talway sclearly
identif yobjects and comple xtraffic situa-
tions.
In such cases, Adaptive Brake Assist can:
Rintervene unnecessarily
Rnot intervene
There is ariskofana ccident.
Alway spaycareful attention to the traffic sit-
uation and be ready to brake. Terminate the
intervention in anon-critica ldriving situation.
GWARNING
Adaptive Brake Assist doe snot react:
Rto peopl eoranimals
Rto oncoming vehicles
Rto crossing traffic
Rwhen cornering
As aresult, the Adaptive Brake Assist may not
intervene in al lcritical conditions .There is a
ris kofana ccident.
Alway spaycareful attention to the traffic sit-
uation and be ready to brake.
Due to the nature of the system, particularly
complicate dbutnon-critica ldriving conditions
may also cause Brake Assist to intervene.
If adaptive Brake Assist is not available du etoa
malfunction in the radar sensor system, the
brake system remains available with ful lbrake
boosting effect and BAS.
66Driving safety systems
Safety

ESP®(Electronic Stability Program)
General notes
iObserv ethe "Important safety notes" sec-
tio n(Ypage 61).
ESP
®monitors driving stabilitya nd traction,i.e.
power transmission between th etires and the
road surface.
If ESP
®detect stha tthe vehicle is deviatin gfrom
th ed irection desired by th edriver, oneorm ore
wheels are braked to stabilizet hevehicle .The
engine output is also modified to keep th evehi-
cle on th edesired course within physical limits.
ESP
®assists th edriver when pullinga way on
wet or slippery roads. ESP®can also stabilize
th ev ehicle durin gbraking.
Important safety notes
iObserv ethe "Important safety notes" sec-
tio n(Ypage 61).
GWARNING
If ESP
®is malfunctioning, ESP®is unabl eto
stabilizet hevehicle .Additionally, further driv-
ing safety systems are deactivated. This
increases th erisk of skiddinga nd an accident.
Drive on carefully. Hav eESP
®checked at a
qualified specialist workshop.
When towing th evehicle with th erear axle
raised, observ ethe note sonE SP
®
(Ypage 311).
If the å ESP®OFFw arning lamp lightsu p
continuously, ESP®is deactivated.
If the ÷ ESP®warning lamp lightsupc ontin-
uously, ESP®is no tavailabl edue to amalfunc-
tion.
Observ ethe informatio nonwarning lamps
(
Ypage 249) and display messages whichm ay
be shown in th einstrumen tcluster
(
Ypage 220).
Only use wheels with th erecommended tire
sizes. Only then will ESP
®function properly.
Characteristics of ESP®
General information
If the ÷ ESP®warning lamp goes out before
beginnin gthe journey, ESP®is automatically
active.
If ESP
®intervenes, the ÷ESP®warning lamp
flashes in th einstrumen tcluster.
If ESP
®intervenes:
XDo no tdeactivate ESP®unde rany circum-
stances.
XOnly depress th eaccelerato rpedal as far as
necessaryw hen pullinga way.
XAdaptyour driving style to suit th eprevailing
road and weather conditions.
ECO start/stop function
The ECO start/sto pfunction switches the
engine off automaticall ywhen th evehicle stops
moving .The engine start sautomaticall ywhen
th ed river want stopull away again.E SP
®
remains in its previously selecte dstatus. Exam-
ple: if ESP®was deactivate dbefore th eengine
was switched off ,ESP®remains deactivated
when th eengine is switched on again.
Deactivating/activatin gESP®(except
Mercedes ‑AM Gvehicles)
Important safety notes
iObserv ethe "Important safety notes" sec-
tio n(Ypage 61).
You can selectb etween thefollowings tate so f
ESP
®:
RESP®is activated.
RESP®is deactivated.
GWARNING
If you deactivate ESP
®,E SP®no longer sta-
bilizes th evehicle .Thereisani ncreased risk
of skiddinga nd an accident.
Only deactivate ESP
®in th esituations descri-
bed in th efollowing.
Driving safety systems67
Safety
Z

It may be best to deactivate ESP®in the follow-
ing situations:
Rwhen using snow chains
Rin deep snow
Ron sand or gravel
iActivate ESP®as soon as the situations
describeda bove no longer apply. ESP®will
otherwise not be abl etostabilize the vehicle if
the vehicle starts to skid or awheel starts to
spin.
!Avoid spinning the driven wheel sfor 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 212)
ESP®deactivated:
The å ESP®OFF warning lamp in the instru-
ment cluster lights up.
ESP
®activated:
The å ESP®OFF warning lamp in the instru-
ment cluster goes out.
Characteristic swhen ESP®is deactivated
If ESP®is deactivated and one or more wheels
start to spin, the ÷ESP®warning lamp in the
instrument cluster flashes. In such situations,
ESP
®wil lnot stabilize the vehicle.
If you deactivate ESP®:
RESP®no longer improves driving stability.
REngine torque is no longer limited and the
drive wheel sare abl etospin.
The spinning of the wheel sresults in acutting
action for better traction on loose surfaces.
RTraction control is still activated.
RCOLLISION PREVENTION ASSISTisnol onger
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 providess upport when you brake
firmly.
Deactivating/activating ESP®
(Mercedes‑AMG vehicles)
Important safety notes
iObserve the "Important safety notes" sec-
tion (Ypage 61).
You can select betwee nthe following states of
ESP
®:
RESP®is activated.
RSPORT handling mode is activated.
RESP®is deactivated.
GWARNING
When SPORT handling mode is activated,
there is agreater risk of skidding and acci-
dents.
Only activate SPORT handling mode in the sit-
uations describedint he following.
GWARNING
If you deactivate ESP
®,E SP®no longer sta-
bilizes the vehicle.T here is an increased risk
of skidding and an accident.
Only deactivate ESP
®in the situations descri-
bed in the following.
!Avoid spinning the driven wheelsf or an
extended period with ESP®deactivated. You
could otherwise damage the drivetrain.
In the following situations, it may be better to
activate SPORT handling mode or deactivate
ESP
®:
Rwhen using snow chains
Rin deep snow
Ron sand or gravel
Ron specially designated roads when the vehi-
cle's own oversteering and understeering
characteristics are desired
Driving in SPORT handling mode or without
ESP
®requires an extremely qualifieda nd expe-
rienced driver.
iActivate ESP®as soon as the situations
describeda bove no longer apply. ESP®will
otherwise not be abl etostabilize the vehicle if
the vehicle starts to skid or awheel starts to
spin.
68Driving safety systems
Safety