Display messagesPossible causes/consequences andMSolutions
b
Chk.Traile rBrakeLamp
The trailer brak elamp is faulty.
XChange th ebulb (see th etrailer manufacturer' soperating instruc-
tions).
b
Chk .Traile rL.TailLampor Chk .Traile rR.TailLamp
The lef torright-hand trailer tai llamp is faulty.
XChange th ebulb (see th etrailer manufacturer' soperating instruc-
tions).
b
Aut oLamps Inopera‐tive
The ligh tsensor is faulty. The automatic headlamp feature is mal-
functioning .
XSwitchthe ligh tfunction son/of fmanually (Ypage 92).
XVisitaqualified specialist workshop .
b
Chk.RearL.T urnSignalor Chk .RearR. Tur nSignal
The rear left-han dorrear right-hand tur nsignal is faulty.
XChange th ebulb (Ypage 98).
b
Chk .Front L. Tur nSignalorChk .FrontR.TurnSignal
The fron tleft-han dorfrontright-hand tur nsignal is faulty.
XChange th ebulb (Ypage 98).
b
Chk .Center BrakeLamp
The high-mounte dbrak elamp is faulty.
XVisit aqualified specialist workshop .
b
Chk.L.Tail/BrakeLamporChk .R.Tail/ Brake Lam p
The leftorright-hand tai llamp/brake lamp is faulty.
XChange th ebulb (Ypage 98).
b
Check Lef tHighBea morCheck RightHig hBeam
The lef torright-hand high-beam headlamp is faulty.
XChange th ebulb (Ypage 98).
b
Licens ePlate Lam p
The leftorright-hand license plat elamp is faulty.
XVisit aqualified specialist workshop .
b
Switch Off Lights
The lights are still switched on when you leav ethe vehicle. An addi-
tional warning tone sounds.
XTurn th eligh tswitch to Ãor$.
Display message s(vehicles withou tsteering wheelbuttons)19 5
On-board computera nd displays
Z
Safety systems
Display messagesPossible causes/consequences andMSolutions
ò÷
Inoperative SeeOperator's Manual
ABS,BAS,hill start assist, and ESP®as well as its driving safety sys-
tems are unavailable due to amalfunction.
ATTENTION ASSIST is deactivated and other driving systems could be
automatically 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.
This causes steerability and braking to be greatly impaired. The brak-
ing distance can increase in emergency braking situations.
If ESP
®is not operational, ESP®will not stabilize the vehicle.
There is an increased risk of skidding and accidents.
XDrive on with care.
XVisit aqualified specialist workshop immediately.
ò÷
Currently Unavail.See Operator's Man‐ual
ABS,B AS,hill start assist, and ESP®as well as its driving safety sys-
tems are temporarily unavailable.
ATTENTION ASSIST is deactivated and other driving systems could be
automatically deactivated.
For example, the 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.
This causes steerability and braking to be greatly impaired. The brak-
ing distance can increase in emergency braking situations.
If ESP
®is not operational, ESP®will not stabilize the vehicle.
There is an increased risk of skidding and accidents.
XDrive on with care and on asuitable stretch of road make slight
steering movementsatas peed above 12 mph (20 km/h).
If the display message continues to be displayed:
XDrive on with care.
XVisit aqualified specialist workshop immediately.
Display messages (vehicles with steering wheel buttons)203
On-board computer and displays
Z
Display messagesPossible causes/consequences andMSolutions
XVisitaqualified specialist workshop immediately.
Further information on th eOccupant Classification Syste m(OCS )can
be found under "Occupant Classification Syste m(OCS)" (
Ypage 51) .
#
CheckBrakePadWear
The brak epads/linings hav ereached their wear limit.
XVisit aqualified specialist workshop .
$(USA
only)
J(Canada
only)
Check Brake Fluid
Level
There is insufficien tbrak efluidint hebrak efluid reservoir .
GWARNING
Braking performance can be impaired.
There is ariskofana ccident.
XStop thevehicl eimmediately, payin gattention to roa dand traffic
conditions. Do no tcontinue drivingunder any circumstances.
XSecur ethe vehicl etopreventitfromr ollin gaway (Ypage 132).
XDo no tadd brak efluid .Addingm orew ill no tremedy th emalfunc -
tion .
XConsult aqualified specialist workshop immediately.
Tò
÷
Inoperative SeeOperator' sManual
EBDisu navailable due to amalfunction .ABS ,BAS ,hill start assist and
ES P®as well as it sdrivin gsafet ysystems ,for example, are therefor e
also unavailable .
ATTENTION ASSIST is deactivated and other drivin gsystems could be
automatically deactivated.
GWARNIN G
The brak esystem continues to function normally, but without th e
function slisted above. The wheels could therefor eloc kp rematurel yif
you brak ehard, for example.
This causes steerabilit yand braking to be greatl yimpaired. The brak -
ing distanc ecan increas einemergenc ybraking situations.
If ES P
®is no toperational, ES P®will notstabiliz ethe vehicle.
There is an increased ris kofskiddin gand accidents .
XDrive on withcare.
XVisit aqualified specialist workshop immediately.
206Display message s(vehicles wit hsteering whee lbuttons)
On-board computera nd displays
Display messagesPossible causes/consequences andMSolutions
÷
Inoperative SeeOperator'sManual
ESP®,BAS and hill start assist are unavailable due to amalfunction .
ATTENTION ASSIST is deactivated and other drivin gsystems could be
automatically deactivated.
GWARNIN G
The brak esystem continues to function normally, but without th e
function slisted above.
The braking distanc einanemergenc ybraking situation can thus
increase.
If ES P
®is no toperational, ES P®will notstabiliz ethe vehicle.
There is an increased ris kofskiddin gand accidents .
XDrive on withcare.
XVisit aqualified specialist workshop immediately.
÷
Currently Unavail.See Operator' sMan‐ual
ES P®,BAS and hill start assist are unavailable due to amalfunction .
The self-diagnosis function ,for example, may no tbecomplete.
ATTENTION ASSIST is deactivated and other drivin gsystems could be
automatically deactivated.
GWARNIN G
The brak esystem continues to function normally, but without th e
function slisted above. The wheels could therefor eloc kify ou brak e
hard, for example.
The braking distanc einanemergenc ybraking situation can thus
increase.
If ES P
®is no toperational, ES P®will notstabiliz ethe vehicle.
There is an increased ris kofskiddin gand accidents .
XDrive on withcareonas uitable stretch of road, making slight
steering movement sataspeed abov e12mph (20 km/h).
If th edisplay message disappears, th efunction smentioned abov e
are available again .
If th edisplay message continues to be displayed:
XDrive on wit hcare.
XVisit aqualified specialist workshop immediately.
F(US A
only)
!(Canada
only)
Releas eParkin g
Brake
The red F(USAonly)/! (Canada only) indicator lamp in th e
instrumen tcluste rlights up and awarning tone also sounds.
You are drivin gwitht he parking brak eapplie dora re making an emer-
gency stop usin gthe parking brake.
XReleas ethe parking brak e(Ypage 133).
Display message s(vehicles wit hsteering whee lbuttons)20 7
On-board computera nd displays
Z
Display messagesPossible causes/consequences andMSolutions
b
CheckTrailerBrakeLamp
The trailer brak elamp is faulty.
XChange th ebulb (see th etrailer manufacturer' soperating instruc-
tions).
b
Check Traile rLeftTai lLampor CheckTraile rRight Tai lLamp
The lef torright-hand trailer tai llamp is faulty.
XChange th ebulb (see th etrailer manufacturer' soperating instruc-
tions).
b
Aut oLampF unctionInoperative
The ligh tsensor is faulty. The automatic headlamp feature is mal-
functioning .
XSwitchthe ligh tfunction son/of fmanually (Ypage 92).
XVisitaqualified specialist workshop .
b
Check RearLeftTur nSignalor
Check Rea rRight
TurnSignal
The rear left-han dorrear right-hand tur nsignal is faulty.
XChange th ebulb (Ypage 98).
b
Check Front Lef tTurnSignalor
Check Front Right
Tur nSignal
The fron tleft-han dorfrontright-hand tur nsignal is faulty.
XChange th ebulb (Ypage 98).
b
Check Center BrakeLam p
The high-mounte dbrak elamp is faulty.
XVisit aqualified specialist workshop .
b
CheckLeftTailandBrake Lampsor
Check Right Tai l
and Brake Lamps
The leftorright-hand tai llamp/brake lamp is faulty.
XChange th ebulb (Ypage 98).
b
Check Lef tHighBea morCheck RightHig hBeam
The lef torright-hand high-beam headlamp is faulty.
XChange th ebulb (Ypage 98).
b
Licens ePlate Lam p
The leftorright-hand license plat elamp is faulty.
XVisit aqualified specialist workshop .
Display messages(vehicles wit hsteering whee lbuttons)20 9
On-board computera nd displays
Z
Drivingsystems
Display messagesPossible causes/consequences an dMSolutions
120 km/h!
Maximu mSpeedExcee‐ded
Only forcertai ncountries: th emaximum speed has bee nexcee ded.
XDrive more slowly.
À
Attention AssistInoperative
ATTENTION ASSIST has failed.
XVisit aqualified specialis tworkshop .
Attention Assist :TakeaB reak!Based on certain criteria, ATTENTION ASSIST has detecte dfatigue or
al ac kofc oncentrat ion on thepartoft hedriver .Anadditional warnin g
tone sounds.
XIf necessary, take abreak .
Durin glon gjou rneys, take regular break singoodt imesot hatyou get
enough rest.
Par kAssistCanceledAdditionally, awarnin gton es ounds. The active parking assistanc ehas
bee ncanceled and Active Parking Assis thas ended automatically. Fo r
example, you hav etouched th esteerin gwhee lord riven to ofast.
XSteer and brake yourself.
XRepeat th eparking procedur eifnecessary. Observ ethe deactiva-
tion condition sasyou do so (Ypage 158).
ParkA ssist Inoper ‐ativePARKTRONIC is malfunctionin gorfaulty.
XFollow th einstructions and helpfulhints in th e"Problems wit h
PARKTRONIC" section (Ypage 154).
XIf thedisplay messag econtinu es to be shown ,consu ltaq ualified
specialis tworkshop .
Active Parking Assis tisunavailable or faulty.
XSwitc hoffthei gnition .
XStart th eenginea gain .
XIf thedisplay messag econtinu es to be shown or symbol jis no t
shown in th edisplay, consult aqualified specialis tworkshop .
Collision Preven ‐tionA ssist Inoper ‐ative
COLLISION PREVENTION ASSIST PLU Sisnotavailable due to amal-
function .
XVisitaqualified specialis tworkshop .
Display message s(vehicles wit hsteering whee lbuttons)21 3
On-board computera nd displays
Z
Tires
Display messagesPossible causes/consequencesand MSolutions
AdjustTirePressureThe tire pressure is too lo winatleastone of the tires, or the tire
pressure differenc ebetween the wheels is too great.
XCheck the tire pressure at the next opportunity (Ypage 274).
XIf necessary,c orrect the tire pressure.
XRestart the tire pressure monitor (Ypage 277).
Check TiresAn additional warning tone sounds.
The tire pressure in one or mor etiresh asdropped significantly. The
displa yshows the whee lposit ion.
GWARNING
Underinflated tire sposet he following risks:
RThe tire smayburst, especially as the load and vehicl espeed
increase.
RThe tire smaywear excessivel yand/or unevenly, which mayg reatly
impai rtire traction.
RThe handling as well as steerin gand braking characteristics mayb e
severely affected.
There is ariskofana ccident.
XStop the vehicl ewithou tmaking any sudden steerin gorbraking
maneuvers. Pa yattentio ntothe trafficc onditions whil edoing so.
XSecure the vehicl etoprevent it fromr olling away (Ypage 132).
XCheck the tiresand,ifn ecessary,c hange the whee l(Ypage 286).
XCheck the tire pressure (Ypage 274).
XIf necessary,correct the tire pressure.
WarningTireM al‐functionThe tire pressure in one or mor etire sh asdropped suddenly. The dis-
play shows the whee lposit ion.
GWARNING
Driving with aflatt ire poses ariskoft he following hazards:
RAflatt ire affects the ability to stee rorbrake the vehicle.
RYouc ould thenl osec ontro lofthe vehicle.
RContinued drivin gwithaf latt ire will cause excessive heat build-up
and possibl yafire.
There is ariskofana ccident.
XStop the vehicl ewithou tmaking any sudden steerin gorbraking
maneuvers. Pa yattentio ntothe trafficc onditions whil edoing so.
XSecure the vehicl etoprevent it fromr olling away (Ypage 132).
XCheck the tiresand,ifn ecessary,c hange the whee l(Ypage 286).
TirePressure Moni‐tor CurrentlyUnavailable
Due to asource of radi ointerference, no signals can be receive dfrom
the whee lsensors. The tire pressure monitor is temporaril ymalfunc-
tioning.
The tire pressure monitor restarts automaticall yassoona sthe prob-
le mh asbeen solved.
216Displa ymessage s(vehicles wit hsteering whee lbuttons)
On-board computera nd displays
Display messagesPossible causes/consequences andMSolutions
Wheel Sensor(s)MissingThere is no signal from th etirep ressur esensor of on eorseveral
wheels. The pressur eoftheaffecte dtireisn otshown in th edisplay.
XHav ethe fault ytirep ressur esensor replace dataqualified special -
ist workshop .
TirePressure Moni‐tor Inoperative NoWheel Sensor s
The wheels installed do no thaves uitable tire pressur esensors. The
tire pressur emonitor is deactivated.
XInstall wheels wit hsuitable tire pressur esensors.
The tire pressur emonitor is activated automatically after drivin gfor
af ew minutes.
Tir ePress.Monito rInoperativeThe tire pressur emonitor is malfunctioning .
XVisitaqualified specialist workshop .
Vehicle
Display messagesPossible causes/consequences and MSolutions
Shiftto'P'or'N'to Start EngineYou haveattempte dtostart th eenginew itht he transmission in posi-
tion Ror D.
XShift th etransmission to position Por N.
Auxiliary Batter yMalfunctionThe auxiliary battery for th etransmission is no longer bein gcharged.
XVisit aqualified specialist workshop .
Apply Brake toShift from'P'You hav eattempte dtomovet he transmission selector lever to posi-
tion D,Ror Nwithout depressing th ebrak epedal .
XDepress th ebrak epedal .
RiskofR olling:TransmissionNotinP
An additional warning tone sounds. The driver's door is open and th e
transmission is in position R,N or D.
XShift th etransmission to position P.
XSecurethe vehicl etopreventitfromr ollin gaway (Ypage 132).
Servic eRequiredDoNot Shift GearsVisit Dealer
An additional warning tone sounds. You canno tchang et he transmis -
sion position due to amalfunction .
If transmission position Dis selected:
XDrive to aqualified specialist workshop without shifting th etrans -
mission from position D.
If transmission position R,N or Pis selected:
XConsult aqualified specialist workshop .
OnlyShift to 'P'whenVehicl eisSta‐tionar y
The vehicl eisstill moving .
XPull overand stop th evehicle, payin gattention to roa dand traffic
conditions.
XShift th etransmission to position P.
Display messages(vehicles wit hsteering whee lbuttons)21 7
On-board computera nd displays
Z