brake sensor MERCEDES-BENZ S-Class COUPE 2016 C217 Owner's Guide

Display messagesPossible causes/consequences andMSolutions
#
Check Brake Pad
Wear
The brak epads/lining shav ereached their wear limit.
US Aonly: th ered $ brakesystem warnin glamp also lights up
while th eengin eis running .
XVisitaqualified 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.
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 170).
XRestart th eengine.
Collision Preven ‐
tionAssist Plu s
Inoperative
COLLISION PREVENTION ASSIST PLU Sis temporarily inoperative
due to amalfunction .Adaptive Brake Assis tmay also hav efailed.
XVisit aqualified specialist workshop .
PRE-SAFE Inopera‐
tiveSee 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.
Display messages25 9
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
PRE-SAFEFunctions
Currently Limited
SeeOperator'sMan‐
ual
PRE ‑S AF E®PLU Sor PRE ‑SAFE®Brake is temporarily inoperative.
Possibl ecauses are:
Rfunction is impaire ddue to heav yrain or snow.
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.
PRE ‑S AF E
®PLU Sand PRE ‑S AF E®Brake are 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 170).
XRestart th eengine.
PRE-SAFEFunctions
Limite dSee Opera‐
tor's Manual
PRE ‑S AF E®PLU Sor PRE‑SAFE®Brake is unavailable due to amal-
function .BA SPLU Swit hCross-Traffic Assis tmay also hav efailed.
XVisit aqualified specialist workshop .
260Display messages
On-board computer and displays

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:
RPRE-SAF E®PLUS
RPRE-SAF E®Brake
RCOLLISION PREVENTION ASSIST PLU S
RActive LaneKeepin gAssis t
RActive Blind Spot Assis t
RDISTRONIC PLUSwit hSteerin gAssis tand Stop&Go Pilo t
If th erada rsensor system in fron tis dirty, Active Blind Spot Assis t
will no tperform acourse-correcting brak eapplication .
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 170).
XSwitchof fth eengine.
XClean th esensor sin th efollowing location s (Ypage 335):
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.
Display messages26 1
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
DISTRONICPLUSNow
Available
DISTRONIC PLU Sis operational again after havin gbeen tempo -
rarily unavailable .You can no wreactivat eDISTRONIC PLU S
(
Ypage 182).
DISTRONICPLU SCur‐
rentlyUnavailable
SeeOperator' sMan‐
ual
DISTRONIC PLU Sis temporarily inoperative.
Steerin gAssis tand Stop&Go Pilo tare temporarily inoperative.
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.
A warnin gtone also sounds.
Whe nth ecauses state dabov eno longer apply, th edisplay mes -
sage disappears.
DISTRONIC 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 170).
XRestart th eengine.
DISTRONIC PLU S
Inoperative
DISTRONIC PLUSis defective.
The following may hav ealso failed:
RBA SPLU Swit hCross-Traffic Assis t
RPRE-SAFE®Brake
RSteeringAssis tand Stop&Go Pilo t
A warnin gtone also sounds.
XVisit aqualified specialist workshop .
DISTRONICPLUSSus‐
pended
You hav edepressed th eaccelerato rpedal .DISTRONIC PLU Sis no
longer controllin gth espeed of th evehicle.
XRemove your foot from th eaccelerato rpedal .
DISTRONIC PLU S
- - -mph
An activation condition fo rDISTRONIC PLU Sis no tfulfilled .
XCheckth eactivation condition sfo rDISTRONIC PLU S
(
Ypage 182).
Display messages27 7
On-board computer and displays
Z