Safety systems
Display messagesPossible causes/consequences andMSolutions
!÷
Currently Unavaila‐ble See Operator'sManual
ABS (Anti-lock Brake System), BAS (Brake Assist), ESP®(Electronic
Stability Program), ESP®trailer stabilization, PRE‑ SAFE®, the HOLD
function, hill start assist, Crosswind Assist, STEER CONTROL, Active
Lane Keeping Assist and Active Blind Spot Assist are temporarily
unavailable.
COLLISION PREVENTION ASSIST PLUS, BAS PLUS with Cross-Traffic
Assist, PRE ‑SAFE
®PLUS and PRE ‑SAFE®Brake 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 affected.
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 immediately.
!÷
Inoperative SeeOperator's Manual
ABS, BAS, ESP®, ESP®trailer stabilization, PRE‑ SAFE®, the HOLD
function, hill start assist, Crosswind Assist, STEER CONTROL, Active
Lane Keeping Assist and Active Blind Spot Assist are unavailable due
to a malfunction.
COLLISION PREVENTION ASSIST PLUS, BAS PLUS with Cross-Traffic
Assist, PRE ‑SAFE
®PLUS and PRE‑SAFE®Brake 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.
The steerability and braking characteristics may be severely affected.
The braking distance in an emergency braking situation can increase.
Display messages281
On-board computer and displays
Z
Display messagesPossible causes/consequences andMSolutions
F(USA
only)
!( Canada
only)
Tur nOn the Igni‐
tio ntoReleas etheParkingBrake
The red F(USAonly) or !(Canada only) indicator lamp lights
up.
You attempte dto release th eelectric parking brak ewhile th eignition
was switched off .
XSmartKey:tur nth eSmartKey to position 1in th eignition lock.
XKEYLESS-GO: switch on theignition .
F(USA
only)
!( Canada
only)
Please
Releas ePark‐ing Brake
The red F(USAonly) or !(Canada only) indicator lamp flashes
and awarning tone sounds. Acondition for automatic release of th e
electric parking brak eis no tfulfilled (
Ypage 179).
You are drivin gwit hth eelectric parking brak eapplied.
XReleas eth eelectric parking brak emanually.
The red F(USAonly) or !(Canada only) indicator lamp flashes
and awarning tone sounds.
You are usin gth eelectric parking brak efor emergenc ybraking
(
Ypage 179).
F(USA
only)
!( Canada
only)
Parkin gBrake See
Operator' sManual
The yellow !warning lamp lights up.
The electric parking brak eis malfunctioning .
To apply :
XSwitchth eignition off .
XPress theelectric parking brak ehandle for at least te nseconds.
XShift th etransmission to position P.
XConsultaqualified specialist workshop .
The yellow!warning lamp and th ered F (USAonly) or !
(Canada only) indicator lamp ligh tup.
The electric parking brak eis malfunctioning .
To release:
XSwitc hoff th eignition and tur nit bac kon .
XReleas eth eelectric parking brak emanually.
or
XReleas eth eelectric parking brak eautomatically (Ypage 179).
If th eelectric parking brak estill canno tbe released:
XDo no tdrive on .
XConsult aqualified specialist workshop .
284Display messages
On-board computer and displays
Display messagesPossible causes/consequences andMSolutions
?
CoolantToo HotSto pVehicl eTur nEngine Off
The coolan tis to ohot .
A warning tone also sounds.
GWARNIN G
Do no tdrive when your engin eis overheated. This can caus esom e
fluids whic hmay hav eleaked int oth eengin ecompartmen tto catch
fire.
Steam from th eoverheate dengin ecan also caus eserious burn swhic h
can occur jus tby opening th ehood.
There is aris kof injury.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 178).
XWait until th eengin ehas cooled down .
XMakesur ethat th eair supply to th eengin eradiato ris no tblocked,
e.g. by snow, slus hor ice .
XDo no tstart th eengin eagain until th edisplay message goe sout and
th ecoolan ttemperature is belo w24 8 ‡ (120†). Otherwise ,th e
engin ecould be damaged.
XPay attention to th ecoolan ttemperature display.
If th etemperatur eincreases again:
XVisit aqualified specialist workshop immediately.
Under normal operating condition sand wit hth especified coolan t
level, th ecoolan ttemperature may ris eto 24 8 ‡(120†).
#
See Operator' sMan ‐ual
The battery is no tbein gcharged.
A warning tone also sounds.
Possibl ecauses are:
Radefective alternato r
Rdefective powerelectronics (PLUG-IN HYBRID vehicles)
Ra torn poly-V-belt
Ramalfunction in th eelectronics
!Do no tcontinu edriving. The engin ecould otherwise overheat.
XPull ove rand stop th evehicl esafely and switch off th eengine, pay-
ing attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 178).
XConsult aqualified specialist workshop .
296Display messages
On-board computer and displays
Display messagesPossible causes/consequences andMSolutions
6
Please WaitDepressurizing Tan k
PLUG-INHYBRID vehicles:
The fuel filler flap unlocking butto nhas been pulled .The fuel tan kmus t
be depressurized before refueling.
XWait until th efuel tan kis depressurized and th efuel filler flap is
unlocked.
The opening process for th efuel filler cap may tak eup to 15
minutes.
6
Tan kis Depressur ‐izedReadyforRefu‐eling
PLUG-I NHYBRID vehicles:
The fuel tan kis no wdepressurized. The vehicl emay no wbe refueled .
XObserveth einformation on refuelin gon th efuel filler flap .
XOpenth efuel filler cap and remove it (Ypage 164).
6
TankVentilationMalfunctionServic eRequired
PLUG-INHYBRID vehicles:
There is amalfunction in th efuel system.
XVisit aqualified specialist workshop .
ã
Acoustic VehicleIndicationinopera‐tiv e
PLUG-I NHYBRID vehicles:
The soun dgenerator is no tworking .The vehicl ecan still be driven ;
however ,no vehicl esounds can be generated. As aresult ,your vehicl e
may no tbe hear dby other roa duser suntil it is ver yclose to them, or
it may no tbe hear dat all.
XDrive wit hparticular care, allowing for th epossibilit ythat other roa d
user smay behave unpredictably.
XVisit aqualified specialist workshop .
Driving systems
Display messagesPossible causes/consequences and MSolutions
À
Attention Assist:Take a Break!
Based on certain criteria, ATTENTION ASSIST has detecte dfatigue or
a lack of concentration on th epart of th edriver . Awarning tone also
sounds.
XIf necessary, tak e abreak.
During lon gjourneys, tak eregular breaks in goo dtime so you get
enough rest.
À
Attention AssistInoperative
ATTENTION ASSIST is inoperative.
XVisit aqualified specialist workshop .
Display messages301
On-board computer and displays
Z
Display messagesPossible causes/consequences andMSolutions
g
LoweringMax.Speed12 mph
The vehicl eis bein glowered from off-road level 3to off-road level 2.
In addition ,th evehicl elevel display appear sabov eth edisplay mes -
sage .
The display message refers to th emaximum speed permissibl e
(dependin gon th emodel type) for off-road level 3.
XDo no texceed 12 mph (20 km/h)until the vehicle has reached off-
road level 2.
ACTIVECURVESYSTEMMalfunctionThe ACTIVE CURVE SYSTEM is faulty. The vehicle's handlin g charac-
teristics may beaffected.
XDo not drive at speeds above 50 mph (80 km/h).
XVisit a qualified specialist workshop.
ACTIVECURVESYSTEMMalfunction SeeOperator's Manual
The ACTIVE CURVE SYSTEM is faulty. The vehicle's handlin g charac-
teristics are severe lyimpaired. A warning tone also sounds.
GWAR NING
There isa risk of an accident.
XDrive on carefully.
XAdjust your driving style to the altered handling characteristics.
XAvoid sudden acceleration around tight corners and fast steering
movements.
XDo not drive at speeds above 50 mph (80 km/h).
XVisit aqualified specialist workshop immediately.
ý
Different. LockSys. Malfunction
Thedifferential lock isfaulty.
XDo not drive at speeds above 50 mph (80 km/h).
XVisit a qualified specialist workshop.
ý
Different. LockingSys. Cooling DownPlease Wait
Thedifferential lock istoo hot and has been disengaged.
XDrive on carefully.
XAllow the differential lock to cool down.
The differential lock re-engages as soon as it has cooled down.
LOW RANGE StopApply Parking BrakeA gearshift process has been canceled. LOW RANGE isin the neutral
position. There isno connection between the engine and the drive
wheels.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
XAp ply the electr icparking brake. Do not continue driving under any
circumstances.
XRepeat the gearshift process.
LOW RANGE Malfunc‐tionToPark,ApplyBrake
LOW RANGE ismalfunctioning.
XDo not drive at speeds above 50 mph (80 km/h).
XWhen parking, secure the vehicle against rolling away (Ypage 178).
XVisit a qualified specialist workshop.
Display messages303
On-board computer and displays
Z
Display messagesPossible causes/consequences andMSolutions
Phone No ServiceYour vehicleis outside th enetwork provider' stransmitter/receiver
range.
XWait until th emobile phone operational readiness symbol appear s
in th emultifunction display.
¥
Check Washer Fluid
The washer flui dlevel in th ewasher flui dreservoir has dropped belo w
th eminimum .
XAddwasher flui d (Ypage 359).
Wiper Malfunction‐ingThe windshield wiper sare malfunctioning .
XVisitaqualified specialist workshop .
Hazard WarningFlashers Malfunc‐tioning
The hazard warning lamp sare faulty.
XVisit aqualified specialist workshop .
SmartKey
Display messagesPossible causes/consequences and MSolutions
Â
KeyDoesNotBelongto Vehicl e
You haveput th ewrong SmartKey in th eignition lock.
XUse th ecorrec tSmartKey.
Â
Tak eYou rKey fro mIgnition
The SmartKey is in th eignition lock.
XRemove th eSmartKey.
Â
Obtain aNew Key
The SmartKey needs to be replaced.
XVisit aqualified specialist workshop .
Â
ReplaceKey Batter y
The SmartKey battery is discharged.
XChange thebattery (Ypage 81) .
Â
Don't Forget You rKey
The SmartKey is notin th eignition lock. You hav eopened th edriver's
door wit hth eengin eswitched off .
This display message is displayed for amaximum of 60 seconds and is
simply areminder.
XTak eth eSmartKey wit hyou when you leav eth evehicle.
Â
Key Not Detected(whit edisplay message )
The SmartKey is currentl yundetected.
XChange th elocation of th eSmartKey in th evehicle.
If th eSmartKey still canno tbe detected:
XOperat eth evehicl ewit hth eSmartKey in th eignition lock.
314Display messages
On-board computer and displays
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
!NThe yellow ABS warning lamp is lit while the engine is running.
PLUG-IN HYBRID vehicles:
The yellow ABS warning lamp is shown in the READY driving status.
ABS (Anti-lock Braking System) is deactivated due to a malfunction. BAS (Brake
Assist), BAS PLUS with Cross-Traffic Assist, COLLISION PREVENTION ASSIST
PLUS, ESP
®(Electronic Stability Program), ESP®trailer stabilization, EBD (Elec-
tronic Brake-force Distribution), PRE ‑SAFE®, PRE‑SAFE®PLUS, PRE ‑SAFE®Brake,
HOLD function, hill start assist, Crosswind Assist, STEER CONTROL, Active Lane
Keeping Assist and Active Blind Spot Assist, for example, are therefore also deac-
tivated.
In addition, the ÷andå warning lamps may light up in the instrument
cluster.
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.
The steerability and braking characteristics may be severely affected. 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.
XObserve the additional display messages in the multifunction display.
XDrive on carefully.
XVisit a qualified specialist workshop immediately.
If the ABS control unit is faulty, there is also a possibility that other systems, such
as the navigation system or the automatic transmission, will not be available.
Warning and indicator lamps in the instrument cluster319
On-board computer and displays
Z
Warning/
indicator
lampNSignal type
Possible causes/consequences and M
Solutions
!NThe yellow ABS warning lamp is lit while the engine is running.
PLUG-IN HYBRID vehicles:
The yellow ABS warning lamp is shown in the READY driving status.
ABS is temporarily unavailable. BAS, BAS PLUS with Cross-Traffic Assist, COLLI-
SION PREVENTION ASSIST PLUS, ESP
®, ESP®trailer stabilization, EBD,
PRE‑ SAFE®, PRE ‑SAFE®PLUS, PRE ‑SAFE®Brake, HOLD function, hill start assist,
Crosswind Assist, STEER CONTROL, Active Lane Keeping Assist and Active Blind
Spot Assist, for example, are therefore also deactivated.
In addition, the ÷andå warning lamps may 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 front and rear wheels could therefore lock if you brake hard, for exam-
ple.
The steerability and braking characteristics may be severely affected. The braking
distance in an emergency braking situation can increase.
If ESP
®is not operational, ESP®is unable to stabilize the vehicle.
There is a risk of an accident.
XCarefully drive a suitable distance, making slight steering movements at a speed
above 12 mph (20 km/h).
The functions mentioned above are available again when the warning lamp goes
out.
If the warning lamp is still on:
XObserve the additional display messages in the multifunction display.
XDrive on carefully.
XVisit a qualified specialist workshop immediately.
320Warning and indicator lamps in the instrument cluster
On-board computer and displays