2016 MERCEDES-BENZ SLK-Class ESP inoperative

Drivingsafet ysystems
Overview of drivin gsafet ysystems
In this section ,you will fin dinformation about
th efollowing drivin gsafet ysystems :
RABS (Anti-loc kBrakin gSystem)
(
Ypage 61)
RBA S (B rake Assist System) (Ypage 62)
RCOLLISION PREVENTION ASSIST PLU S
(distanc ewarnin gfunction and Adaptive
Brak eAssist) (
Ypage 62)
RESP®(Electronic StabilityProgram)
(
Ypage 65)
REB D (Electroni cBrak eforc eDi stribution )
(
Ypage 69)
RADAPTIV EBRAKE (Ypage 69 )
Important safet ynotes
If you fail to adapt your drivin gstyle or if you
are inattentive ,th edrivin gsafet ysystems can
neither reduce th eris kof an acciden tno r
override th elaws of physics. Driving safet y
systems are merely aids designed to assist
driving. You are responsible fo rmaintainin g
th edistanc eto th evehicle in front, fo rvehicle
speed, fo rbraking in goo dtime, and fo rstay-
in gin lane. Always adapt your drivin gstyle to
suit th eprevailin groad and weather condi-
tion sand maintain asaf edistanc efrom th e
vehicle in front. Drive carefully.
The drivin gsafet ysystems described only
wor kas effectively as possible when there is
adequat econtact between th etires and th e
road surface. Please pay special attention to
th enote son tires ,recommended minimum
tire tread depths, etc. (
Ypage 308).
In wintr ydrivin gconditions, always use winte r
tires (M+ Stires )and if necessary, snow
chains. Only in this way will th edrivin gsafet y
systems described in this section wor kas
effectively as possible.
ABS (Anti-lock Braking System)
General information
AB Sregulates brake pressure in suc h away
that th ewheels do no tloc kwhen you brake .
Thi sallow syou to continue steerin gth evehi-
cl e when braking .
The ! ABSwarnin glamp in th einstrumen t
cluster lights up when th eignition is switched
on .It goe sout when th eengin eis running .
AB Sworks from aspeed of about 5mph
(8 km/h), regardles sof road-surfac econdi-
tions. AB Sworks on slipper ysurfaces, eve n
when you only brake gently.
Important safet ynotes
iObserv eth e"Important safet ynotes" sec -
tion (
Ypage 61).
GWARNING
If AB Sis faulty, th ewheels could loc kwhen
braking .The steerability and braking charac -
teristics may be severely impaired. Addition -
ally, further drivin gsafet ysystems are deac -
tivated. There is an increase ddanger of skid-
din gand accidents .
Drive on carefully. Hav eAB Schecke dimme-
diately at aqualified specialis tworkshop .
WhenAB Sis malfunctioning, other systems ,
includin gdrivin gsafet ysystems ,will also
becom einoperative .Observ eth einformation
on th eAB Swarnin glamp (
Ypage 243) and
display message swhic hmay be shown in th e
instrumen tcluster (
Ypage 212).
Braking
XIf ABS intervenes: continue to depress th e
brake peda lvigorousl yuntil th ebraking sit -
uation is over.
XTo make afull brak eapplication:
depress th ebrake peda lwit hfull force.
If AB Sintervenes when braking ,you will feel a
pulsin gin th ebrake pedal.
Driving safety systems61
Safety
Z

Safety systems
Display messagesPossible causes/consequences andMSolutions
!÷
Currently Unavail‐
able See Opera‐
tor's Manual
ABS (Anti-lock Braking System), ESP®(Electronic Stability Pro-
gram), BAS (Brake Assist), PRE ‑SAFE®, the HOLD function and hill
start assist are temporarily unavailable.
COLLISION PREVENTION ASSIST PLUS may also have failed.
In addition, the ÷,åand! warning lamps light up in the
instrument cluster.
ATTENTION ASSIST is deactivated.
Possible causes are:
Rself-diagnosis is not yet complete.
Rthe on-board voltage may be insufficient.
GWARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The steerability and braking characteristics may be severely affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP
®is not operational, ESP®is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
XCarefully drive a suitable distance, making slight steering move-
ments at a speed above 12 mph (20 km/h).
If the display message disappears, the functions mentioned
above are available again.
If the multifunction display still shows the display message:
XDrive on carefully.
XVisit a qualified specialist workshop.
!÷
Inoperative See
Operator's Manual
ABS, ESP®, BAS, PRE‑SAFE®, the HOLD function and hill start
assist are unavailable due to a malfunction.
COLLISION PREVENTION ASSIST PLUS may also have failed.
The $ (USA only) or J(Canada only), ÷,åand!
warning lamps in the instrument cluster also light up.
ATTENTION ASSIST is deactivated.
GWARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
212Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
÷
Inoperative See
Operator'sManual
ES P®,BAS, PRE‑ SAF E®,th eHOLD function and hill start assist are
unavailable due to amalfunction .
COLLISION PREVENTION ASSIST PLU Smay also hav efailed.
In addition ,th e÷ andå warnin glamp sligh tup in th e
instrumen tcluster.
ATTENTION ASSIST is deactivated.
GWARNIN G
The brakesystem continues to function normally, but without th e
function slisted above.
The brakin gdistanc ein an emergenc ybrakin gsituation can thus
increase .
If ES P
®is no toperational, ES P®is unable to stabiliz eth evehicle.
There is an increase dris kof skiddin gand an accident.
XDrive on carefully.
XVisit aqualified specialist workshop .
T!
÷
Inoperative See
Operator'sManual
EB D(electronic brak eforc edistribution), ABS, ES P®,BAS, PRE -
SAFE®, th eHOLD function and hill start assist are unavailable due
to amalfunction .
COLLISION PREVENTION ASSIST PLU Smay also hav efailed.
In addition ,th e÷, åand! warnin glamp sligh tup in th e
instrumen tcluster and awarnin gtone sounds.
GWARNIN G
The brakesystem continues to function normally, but without th e
function slisted above. The fron tand rear wheels could therefore
loc kif you brak ehard, fo rexample.
The steerabilit yand brakin gcharacteristics may be severely affec -
ted. The brakin gdistanc ein an emergenc ybrakin gsituation can
increase .
If ES P
®is no toperational, ES P®is unable to stabiliz eth evehicle.
There is an increase dris kof skiddin gand an accident.
XDrive on carefully.
XVisit aqualified specialist workshop immediately.
214Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
$(USA
only)
J(Canada
only)
Check Brake Fluid
Level
There is no tenough brak eflui din th ebrak eflui dreservoir .
In addition ,th e$ (USAonly) or J(Canada only) warnin g
lamp lights up in th einstrumen tcluster and awarnin gtone
sounds.
GWARNIN G
The brakin geffec tmay be impaired.
There is aris kof an accident.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions. Do no tcontinue drivin g
under any circumstances.
XSecur eth evehicl eagainst rollin gaway (Ypage 160).
XConsult aqualified specialist workshop .
XDo notadd brak efluid. This does no tcorrec tth emalfunction .
#
Check Brake Pad
Wear
The brak epads/lining shav ereached their wear limit.
XVisit aqualified specialist workshop .
G
Inoperative
Oneor mor emain features of th embrace system are malfunc -
tioning.
XHav eth embrace system checke dat aqualified specialist work-
shop.
PRE-SAFE Inopera‐
tiv eSee Opera‐
tor's Manual
Importan tfunction sof PRE-SAF E®havefailed. Al lother occupant
safet ysystems ,e.g. air bags ,remain available.
XVisit aqualified specialist workshop immediately.
218Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
Collision Preven‐
tionAssist Plu s
Currently Unavail‐
ableSee Opera‐
tor's Manual
COLLISION PREVENTION ASSIST PLU Sis temporarily no topera-
tional. Possibl ecauses are:
Rth erada rsensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radi osta-
tion sor other source sof electromagnetic radiation .
Rthesystem is outside th eoperating temperature range.
Rth eon-boar dvoltag eis to olow.
Whe nth ecauses state dabov eno longer apply, th edisplay mes -
sage disappears.
COLLISION PREVENTION ASSIST PLU Sis operational again .
If th edisplay message does no tdisappear :
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 160).
XRestart th eengine.
Collision Preven ‐
tionAssist Plu s
Inoperative
COLLISION PREVENTION ASSIST PLU Sis temporarily inoperative
due to amalfunction .
XVisitaqualified specialist workshop .
Display messages219
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
Radar Sensors
Dirty See Opera‐
tor's Manual
At leaston eof th efollowing drivin gsystems or drivin gsafet ysys-
tems is temporarily restricted or inoperative:
RCOLLISION PREVENTION ASSIST PLU S
RDISTRONIC PLUS
Possibl ecauses are:
Rth esensor sin th eradiato rtrim and/o rin th ebumpers are dirty
Rth efunction of th edrivin gsystem and/o rdrivin gsafet ysystem
is impaire ddue to heav yrain or snow.
A warnin gtone also sounds.
Whe nth ecauses state dabov eno longer apply, th edisplay mes -
sage disappears. Al ldrivin gsystems and drivin gsafet ysystems
are operative again .
If th edisplay message does no tdisappear :
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 160).
XSwitchof fth eengine.
XClean th esensor sin th efollowing location s (Ypage 285):
Rin theradiato rtrim
Rin th efron tbumper
Rin th erear bumper, particularl yin th emiddle of th erear
bumper
XRestart th eengine.
The display message disappears.
6
SRS Malfunction
Servic eRequired
The restrain tsystem is faulty. The 6warnin glamp also lights
up in th einstrumen tcluster.
GWARNIN G
The air bags or Emergency Tensioning Devices may either be trig-
gered unintentionally or, in th eevent of an accident, may no tbe
triggered .
There is an increase dris kof injury.
XVisit aqualified specialist workshop .
Fo rfurther information about th erestrain tsystem, see
(
Ypage 40) .
220Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
b
RearFog Lam p
The rear fo glamp is faulty.
XVisit aqualified specialist workshop .
b
Check Front Left
Standing
LamporCheck Front
RightStandingLam p
The fron tlef tor fron tright parkin gor standin glamp is defective.
XChec kwhether you are permitte dto replac eth ebulb yourself
(
Ypage 115).
or
XVisit aqualified specialist workshop .
b
Backup Light
The backup lamp is defective.
XCheckwhether you are permitte dto replac eth ebulb yourself
(
Ypage 115).
or
XVisit aqualified specialist workshop .
b
Check Front Left
SidemarkerLam por
Check Front Right
Sidemarke rLam p
The fron tleft-han dor fron tright-hand side marke rlamp is faulty.
XVisit aqualified specialist workshop .
b
Check RearLef t
Sidemarke rLam por
Check Rea rRight
Sidemarke rLam p
The rear left-han dor rear right-hand side marke rlamp is faulty.
XVisit aqualified specialist workshop .
b
CheckLeftDaytim e
Running
LightorChec kRight
Daytim eRunnin g
Light
The leftor right-hand daytime running lamp is faulty.
XChec kwhether you are permitte dto replac eth ebulb yourself
(
Ypage 115).
or
XVisit aqualified specialist workshop .
b
Active Headlamps
Inoperative
The active lightfunction is faulty.
XVisit aqualified specialist workshop .
b
Malfunction See
Operator'sManual
The exterio rlighting is defective.
XVisit aqualified specialist workshop .
226Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
b
AutoLampFunction
Inoperative
The ligh tsensor is defective.
XVisit aqualified specialist workshop .
b
Switch Off Lights
You leaveth evehicl eand th eligh tis still switched on . Awarnin g
tone also sounds.
XTur nth eligh tswitch to position Ã.
Adaptive Highbeam
Assist Inoperative
Adaptive Highbeam Assis tis faulty.
XVisit aqualified specialist workshop .
Adaptive Highbeam
Assist Currently
Unavailable See
Operator'sManual
Adaptive Highbeam Assis tis deactivated and temporarily inoper -
ative. Possibl ecauses are:
Rth ewindshield in th ecamera' sfield of vision is dirty.
Rvisibility is impaire ddue to heav yrain ,snow or fog.
XClean th ewindshield.
If th esystem detects that th ecamera is full yoperational again ,th e
Adaptive
HighbeamAssistNowAvailablemessage appears .
Adaptive Highbeam Assis tis operational again .
Engine
Display messagesPossible causes/consequences and MSolutions
+
Check Coolant
Level See Opera‐
tor's Manual
The coolantlevel is to olow.
!Avoid makin glon gjourneys wit hto olittl ecoolan tin th eengin e
coolin gsystem. The engin ewill otherwise be damaged.
XAd dcoolant, observin gth ewarnin gnote sbefore doin gso
(
Ypage 279).
XIf you need to add coolan tmor eofte nthan usual, hav eth e
engin ecoolan tsystem checke dat aqualified specialist work-
shop.
?The fan motor is faulty.
XAt coolan ttemperatures belo w24 8 ‡ (120†), drive to th e
neares tqualified specialist workshop .
XAvoid subjecting theengin eto heav yloads ,e.g. drivin gin moun-
tainous terrain ,and stop-and-g otraffic.
Display messages22 7
On-board computer and displays
Z