2017 MERCEDES-BENZ S-Class CABRIOLET steering

Display messagesPossible causes/consequences andMSolutions
÷
Inoperative SeeOperator'sManual
ES P®is malfunctioning .
Other drivin gsystems and drivin gsafet ysystems may also malfunc -
tion .
The ÷ warning lamp also lights up in th einstrumen tcluster.
GWARNIN G
The brak esystem continues to function normally, but without th e
function slisted above.
The braking distanc ein an emergenc ybraking situation can thus
increase.
If ES P
®is no toperational, ES P®is unable to stabiliz eth evehicle.
There is an increased ris kof skiddin gand an accident.
XDrive on carefully.
XVisit aqualified specialist workshop immediately.
÷
Currently Unavaila‐ble See Operator' sManual
ESP®is temporarily unavailable .
Other drivin gsystems and drivin gsafet ysystems may also malfunc -
tion .
The ÷ warning lamp also lights up in th einstrumen tcluster.
The self-diagnosis function might no tbe complete, for example.
GWARNIN G
The brak esystem continues to function normally, but without th e
function slisted above. The wheels could therefor eloc kif you brak e
hard, for example.
The braking distanc ein an emergenc ybraking situation can thus
increase.
If ES P
®is no toperational, ES P®is unable to stabiliz eth evehicle.
There is an increased ris kof skiddin gand an accident.
XCarefully drive asuitable distance, making slight steering move-
ments at aspeed abov e12 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 immediately.
206Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
RadarSensorsDirtySee Operator' sMan ‐ual
The radar sensor system is malfunctioning .
Possibl ecauses are:
RDirt on sensor s
RHeavy rain or snow
RWhendrivin gon inter-urban roads without traffic or infrastructure,
e.g. in desert-like area s
At least on edrivin gsystem or drivin gsafet ysystem is malfunctioning
or is temporarily unavailable :
RPRE-SAFE®PLUS
RPRE-SAF E®Brake
RCOLLISION PREVENTION ASSIST PLU S
RActive LaneKeepin gAssis t
RActive Blind Spot Assis t
RDISTRONICPLU Swit hSteering Assis tand Stop&Go Pilo t
If th eradar sensor system in fron tis dirty, Active Blind Spot Assis twill
no tperfor m acourse-correcting brak eapplication .
A warning tone also sounds.
Once th ecaus eof th eproblem is no longer present, th edrivin gand
drive safet ysystems will be available again .The display message dis-
appears.
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 140).
XSwitchoff th eengine.
XClean all sensor s (Ypage 284).
XRestart theengine.
The display message disappears.
6
SRSMalfunctionSer ‐viceRequired
The restrain tsystem is malfunctioning .The 6 warning lamp also
lights up in th einstrumen tcluster.
GWARNIN G
The air bags or Emergency Tensioning Devices may either be triggered
unintentionally or, in th eevent of an accident, may no tbe triggered .
There is an increased ris kof injury.
XVisit aqualified specialist workshop immediately.
Fo rfurther information about th erestrain tsystem, see (
Ypage 41).
212Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
AIRMATIC is malfunctioning. Awarning tone also sounds.
XDo no tdrive at speeds abov e50 mph (80 km/h).
XMak eonly slight steering movements. Otherwise ,th efron tfender
or th etires could be damaged if th esteering movement is to olarge.
XListe nfor scraping sounds.
XPull ove rand stop th evehicl esafely, payin gattention to roa dand
traffic conditions, and set ahigher vehicl elevel.
Dependin gon th emalfunction ,it may be possibl eto rais eth evehi-
cle .
XVisit aqualified specialist workshop .
¨
Malfunction
The AIRMATIC function is restricted. The vehicle's handlin gcharac -
teristics may be affected.
XDo no tdrive at speeds abov e50 mph (80 km/h).
XVisit aqualified specialist workshop .
ActiveLaneKeepin gAssist CurrentlyUnavailable SeeOperator' sManual
Active Lan eKeepin gAssis tis deactivated and temporarily inoperative.
Possibl ecauses are:
Rth ewindshield in th ecamera' sfield of vision is dirty
Rvisibilit yis impaire ddue to heav yrain ,snow or fog
Rthere hav ebeen no lan emarking sfor an extended period
Rth elan emarking sare worn, dark or covered, e.g. by dir tor snow
Whe nth ecauses state dabov eno longer apply, th edisplay message
disappears.
Active Lan eKeepin gAssis tis 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 140).
XClean th ewindshield.
ActiveLan eKeepin gAssist InoperativeActive Lan eKeepin gAssis tis malfunctioning .
XVisitaqualified specialist workshop .
Display messages221
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
Active Blind SpotAssist CurrentlyUnavailable SeeOperator'sManual
Active Blind Spot Assis tis temporarily inoperative.
Possibl ecauses are:
Rth eradar sensor system is outside th eoperating temperature range
Rth eradar sensor system is temporarily inoperative, e.g. due to elec -
tromagneti cradiation emitted by nearby TV or radi ostation sor
other source sof electromagneti cradiation
Whe nth ecauses state dabov eno longer apply, th edisplay message
disappears.
Active Blind Spot Assis tis 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 140).
XRestart th eengine.
Active Blind Spo tAssist InoperativeActive Blind Spot Assis tis malfunctioning .
XVisitaqualified specialist workshop .
ParkAssistCanceledThe driver's door is open .
XRepeat theparking gap measuremen tand parking process wit hth e
driver's door closed .
You touched themultifunction steering whee lwhile steering inter-
vention was active .
XWhilesteering intervention is active ,mak esur ethat th emultifunc-
tion steering whee lis no ttouched unintentionally.
The vehicl ehas started to skid and ES P®has intervened.
XUse Active Parking Assistagain later (Ypage 164).
ParkAssist Inoper ‐ativePARKTRONICis malfunctioning or faulty.
XFollow th einstruction sand helpful hints in th e"Problem swit h
PARKTRONIC" section (Ypage 164).
If th emultifunction display still shows th edisplay message :
XVisitaqualified specialist workshop .
Active Parking Assistis unavailable or faulty.
XSwitc hoff th eignition and restar tth eengine.
If Active Parking Assis tcontinues to be unavailable (the jsymbol is
no tshown in th emultifunction display):
XVisit aqualified specialist workshop .
ParkAssistSwitched OffThe vehicl eis parked. Awarning tone also sounds.
The display message disappear sautomatically.
222Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
TrafficSignAssistInoperativeTraffic Sig nAssis tis malfunctioning .
XVisitaqualified specialist workshop .
ë
Off
The HOLD function is deactivated. th evehicl eis skidding.
A warning tone also sounds.
XReactivat eth eHOLD function later (Ypage 158).
DISTRONIC PLUSOffDISTRONI CPLU Shas been deactivated.
If awarning tone also sounds, DISTRONI CPLU Shas deactivated auto -
matically (
Ypage 150).
DISTRONIC PLU SNowAvailableDISTRONI CPLU Sis operational again after having been temporarily
unavailable .You can no wreactivat eDISTRONI CPLU S (Ypage 150).
DISTRONIC PLU SCur ‐rently UnavailableSee Operator' sMan ‐ual
DISTRONI CPLU Sis temporarily inoperative.
Steering Assis tand Stop&Go Pilo tare temporarily inoperative.
Possibl ecauses are:
Rth eradar sensor system is temporarily inoperative, e.g. due to elec -
tromagneti cradiation emitted by nearby TV or radi ostation sor
other source sof electromagneti cradiation
Rth esystem is outside th eoperating temperature range
Rth eon-boar dvoltag eis to olow.
A warning tone also sounds.
Whe nth ecauses state dabov eno longer apply, th edisplay message
disappears.
DISTRONI CPLU 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 140).
XRestart th eengine.
DISTRONICPLU SInop‐erativ eDISTRONI CPLU Sis malfunctioning
The followin gmay hav ealso failed:
RBA SPLU Swit hCross-Traffic Assis t
RPRE-SAFE®Brake
RSteering Assis tand Stop&Go Pilo t
A warning tone also sounds.
XVisit aqualified specialist workshop .
DISTRONIC PLUSSus ‐pendedYou hav edepressed th eaccelerato rpedal .DISTRONI CPLU Sis no
longer controllin gth espeed of th evehicle.
XRemove your foo tfrom th eaccelerato rpedal .
DISTRONIC PLU S- - -mphAn activation condition for DISTRONI CPLU Sis no tfulfilled .
XCheckth eactivation condition sfor DISTRONI CPLU S (Ypage 150).
224Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
DTR+: SteeringAssist.CurrentlyUnavailable SeeOperator' sManual
Steering Assis tand Stop&Go Pilo tare temporarily inoperative.
Possibl ecauses are:
Rth ewindshield in th ecamera' sfield of vision is dirty
Rvisibilit yis impaire ddue to heav yrain ,snow or fog
Rthere hav ebeen no lan emarking sfor an extended period
Rth elan emarking sare worn, dark or covered, e.g. by dir tor snow
Whe nth ecauses state dabov eno longer apply, th edisplay message
disappears.
Steering Assis tand Stop&Go Pilo tare 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 140).
XClean th ewindshield.
DTR+: SteeringAssist .InoperativeSteering Assis tand Stop&Go Pilo tare defective.
However, th eDISTRONI CPLU Sfunction sare still available.
A warning tone also sounds.
XVisit aqualified specialist workshop .
CruiseControlInop‐erativeCruisecontrol is malfunctioning .
A warning tone also sounds.
XVisit aqualified specialist workshop .
Cruise Control- - -mph
RAcondition for activating cruise control has no tbeen met .
You hav etried to store aspeed belo w20 mph (30 km/h), for exam-
ple.
RES P®is deactivated. The yello wES P®OF Fwarning lamp is lit .
XIf conditionspermit ,drive faste rthan 20 mph (30 km/h )and store
th espeed.
or
XChec kth eactivation condition sfor cruise control (Ypage 149).
or
XReactivat eES P®(Ypage 198).
Cruise Contro lOffCruis econtrol has been deactivated.
If awarning tone also sounds, cruise control has deactivated auto -
matically (
Ypage 149).
Display messages225
On-board computer and displays
Z

Tires
Display messagesPossible causes/consequences andMSolutions
PleaseCorrectTirePressureThe tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
XCheck the tire pressures at the next opportunity (Ypage 308).
XIf necessary, correct the tire pressure.
XRestart the tire pressure monitor (Ypage 310).
Check TiresThe tire pressure in one or more tires has dropped significantly. The
wheel position is shown in the multifunction display.
A warning tone also sounds.
GWARNING
Tire pressures that are too low pose the following hazards:
Rthey may burst, especially as the load and vehicle speed increase.
Rthey may wear excessively and/or unevenly, which may greatly
impair tire traction.
Rthe driving characteristics, as well as steering and braking, may be
greatly impaired.
There is a risk of an accident.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
XSecure the vehicle against rolling away (Ypage 140).
XCheck the tires and, if necessary, follow the instructions for a flat
tire (Ypage 288).
XCheck the tire pressure (Ypage 308).
XIf necessary, correct the tire pressure.
Warning Tire Mal‐functionThe tire pressure in one or more tires has dropped suddenly. The wheel
position is shown in the multifunction display.
GWARNING
Driving with a flat tire poses a risk of the following hazards:
Ra flat tire affects the ability to steer or brake the vehicle.
Ryou could lose control of the vehicle.
Rcontinued driving with a flat tire will cause excessive heat build-up
and possibly a fire.
There is a risk of an accident.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
XSecure the vehicle against rolling away (Ypage 140).
XCheck the tires and, if necessary, follow the instructions for a flat
tire (Ypage 288).
226Displa y messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
Auxiliary BatteryMalfunctionThe auxiliary battery for th etransmission is no longer bein gcharged.
XVisit aqualified specialist workshop .
XUntilthen ,set th etransmission to position Pbefore you switch off
th eengine.
XBefor eleaving th evehicle, apply th eelectric parking brake.
NThe trunk lid is open .
XCloseth etrunk lid.
MThe hoo dis open . Awarning tone also sounds.
GWARNIN G
The open hoo dmay bloc kyour vie wwhen th evehicl eis in motion .
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.
XSecur eth evehicl eagainst rollin gaway (Ypage 140).
XCloseth ehood.
CAt least on edoor is open . Awarning tone also sounds.
XClos eall th edoors.
_
Loc kSea tBackrestFront Lef torFrontRightSea tBackrestNot Locked
The driver's or fron tpassenger's seat backrest is no tengaged. A
warning tone also sounds.
XPush th ebackrest bac kuntil it engages.
Ð
Power Steering Mal ‐function See Opera‐tor's Manual
The powersteering is malfunctioning .
A warning tone also sounds.
GWARNIN G
You will need to use mor eforce to steer .
There is aris kof an accident.
XChec kwhether you are able to apply th eextr aforce required.
If you ar eabl eto steer safely:
XDrive on carefully.
XVisit aqualified specialist workshop immediately.
If you ar eunable to steer safely:
XDo no tdrive on .
XConsult aqualified specialist workshop .
Display messages229
On-board computer and displays
Z