
Displa
Displa
y messag
y messag es P
es P ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Stop theve hicle as soon as possible, paying attention to
ro ad and tra1c conditions. Do not continue driving. #
Consult a quali/ed specialist workshop. #
Do not top up the brake 0uid. T
!
÷
inoperative See Owner's
Manual *E
BD is una vailable due toa malfunction. This means that ABS, BAS,
Hi llSt art Assist and ESP ®
as well as its driving saf ety systems, for
ex ample, are also una vailable.
AT TENTION ASSIST is deactivated and other driving systems could be
automatically deacti vated.
The brake system continues tofunction normally, but wi thout the
functions listed ab ove. &
W WARNI NG
ARNI NGRisk of skidding if EBD, ABS and ESP ®
are mal-
functioning
The wheels may block during braking and ESP ®
does not per form
any vehicle stabilization.
The steerability and braking characteristics are heavily impaired
and the braking distance may increase. In addition, other driving
saf ety systems are swit ched o.. #
Drive on carefull y. #
Have the brake system checked immediately at a quali/ed
specialist workshop. ÷
inoperative See Owner's
Manual *
ESP ®
,BAS and Hill Start Assist are una vailable due toa malfunction.
AT TENTION ASSIST is deactivated and other driving systems could be
automatically deacti vated.
The brake system continues tofunction normall y,but without the
functions listed ab ove. The wheels could therefore lock up at an ear ly
stage in theev ent of maximum full-s top braking, forex ample.
This will se verely impair steerability and braking. Braking distance may
increase in an emer gency braking situation. &
W WARNI NG
ARNI NGRisk of skidding if ESP ®
is malfunctioning
If ESP ®
is malfunctioning, ESP ®
cannot car ryout vehicle stabilisa-
tion. In addition, other driving saf ety systems are swit ched o.. #
Drive on carefull y. #
Have ESP ®
ch ecked at a quali/ed specialist workshop. ÷
currently unavailable
See Owner's Manual *
ESP ®
,BAS and Hill Start Assist are una vailable due toa malfunction.
Self-diagnosis is not yet comple te,fo rex ample.
AT TENTION ASSIST is deactivated and other driving systems could be
automatically deacti vated.
The brake system continues tofunction normall y,but without the
functions listed ab ove. The wheels could therefore lock up at an ear ly
stage in theev ent of maximum full-s top braking, forex ample. 286 286
Display messages and
warning and indicator lamps

Displa
Displa
y messag
y messag es P
es P ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
This will se verely impair steerability and braking. Braking distance may
increase in an emer gency braking situation. &
W
WARNI NG
ARNI NGRisk of skidding if ESP ®
is malfunctioning
If ESP ®
is malfunctioning, ESP ®
cannot car ryout vehicle stabilisa-
tion. In addition, other driving saf ety systems are swit ched o.. #
Drive on carefull y. #
Have ESP ®
ch ecked at a quali/ed specialist workshop. #
Drive carefully on a suitable st retch of road, making slight steering
mo vements at a speed abo ve20 km/h.
The functions mentioned abo vewill be available again when the
display message goes out.
If th e display message continues tobe shown: #
Drive on carefull y. #
Consult a quali/ed specialist workshop immediatel y.
! Release parking brake *T
hered! indicator lamp on the inst rument cluster lights up.
A wa rning tone also sounds.
Yo u are driving with the parking brake applied or per form ing emer-
ge ncy braking using the parking brake. #
Release the parking brake (/ page 151).
! Parking brake See Own-
er's Manual *T
heyellow ! warning lamp lights up and there d! indicator
lamp is o..
The parking brake is malfunctioning, e.g. aTer the star ter battery has
been disconnected.
R R eleasing t
eleasing t he par
he parking br
king br ak
ake:
e: #
Switch theve hicle o. and on again. #
Depress the brake pedal and brie0y pull the handle of the parking
brake (/ page 151). #
ATer around ten seconds, push down the handle of the parking
brake.
If th eye llow ! warning lamp is o.: #
Release the parking brake.
If th eye llow ! warning lamp remains lit: #
Do not drive on. #
Secure theve hicle against rolling away. #
V
Vehicles wit
ehicles wit h manual tr
h manual tr ansmission:
ansmission: engage /rstgear. #
V
Vehicles wit
ehicles wit h aut
h automatic tr
omatic tr ansmission:
ansmission: shiTthe transmission to
j . #
Turn the front wheels towa rdsth eke rb. #
Consult a quali/ed specialist workshop.
*T heyellow ! warning lamp and there d! indicator lamp light
up. Display messages and
warning and indicator lamps
287
287

Displa
Displa
y messag
y messag es P
es P ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
The parking brake is malfunctioning.
R R eleasing t
eleasing t he par
he parking br
king br ak
ake:
e: #
Switch theve hicle o. and on again. #
Release the parking brake.
If th e parking brake still cannot be released: #
Do not drive on. #
Consult a quali/ed specialist workshop.
*T hered! indicator lamp 0ashes and theye llow ! warning
lamp lights up.
The parking brake is malfunctioning. #
Switch theve hicle o. and on again. #
Release or apply the parking brake.
If th ere d! indicator lamp continues 0ashing: #
Do not drive on. #
Secure theve hicle against rolling away. #
V Vehicles wit
ehicles wit h manual tr
h manual tr ansmission:
ansmission: engage /rstgear. #
V
Vehicles wit
ehicles wit h aut
h automatic tr
omatic tr ansmission:
ansmission: shiTthe transmission to
j . #
Turn the front wheels towa rdsth eke rb. #
Consult a quali/ed specialist workshop.
! Depress brake pedal to
release *T
hered! indicator lamp lights up.
Yo u ha vetried torelease the parking brake without depressing the
brake pedal. #
Depress the brake pedal. #
Torelease, pull the handle on the parking brake.
PRE-SAFE inoperative
See Owner's Manual *
Impor tant functions of PRE-SAFE ®
ha ve failed. All other occupant
saf ety systems, e.g. airbags, remain available. #
Consult a quali/ed specialist workshop immediatel y.
Information on these functions can be found under "PRE‑SAFE ®
(anticipatory occupant pr otection)" (/ page 38).
6 Restraint sys. malfunc-
tion Consult workshop *T
herestraint system is malfunctioning. In addition, the6 warning
lamp on the inst rument cluster lights up. &
W WARNING
ARNING Risk of injury due tomalfunctions in there straint
system
Co mp onents in there straint system may be activated unintention-
al ly or not deploy as intended in an accident. #
Have there straint system checked and repaired immediately
at a quali/ed specialist workshop. Fu
rther information on there straint system and its co mponents can
be found under "Occupant saf ety". 288
288
Display messages and
warning and indicator lamps

Displa
Displa
y messag
y messag es P
es P ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Remo ve yo urfoot from the accelerator pedal. The limiter will be
re activated and will limit your speed.
Cruise control - - - km/h *An activation condition for cruise control has not been met.
Fo rex ample, you are aiming tostore a speed below 30 km/h. #
If conditions pe rmit, drive at a speed greater than 30 km/h and
store the speed. #
Obser vethe activation conditions for cruise control
(/ page 158).
Cruise control and Lim-
iter inoperative *A
warning tone also sounds. Cruise control and the limiter are mal-
functioning. #
Consult a quali/ed specialist workshop.
Blind Spot Assist not
available when towing a
trailer See Owner's Man-
ual *B
lind Spot Assist is switched o. during trailer operation. #
Ackno wledge the display message with thea steering wheel
button.
Blind Spot Assist inoper-
ative *B
lind Spot Assist is malfunctioning. #
Consult a quali/ed specialist workshop.
Blind Spot Assist cur-
rently unavailable See
Owner's Manual *B
lind Spot Assist is temp orarily non-operational.
The following causes are possible:
R The function is impaired due toheavy rain or sno w.
R The radar sensor system is temp orarily non-operational, e.g. due
to electromagnetic radiation close toTV orradio transmitting sta-
tions or other sources of radiation.
R The system is outside the operating temp erature range.
If th e causes mentioned abo veno longer app ly,th e display message
will disappear and Lane Keeping Assist will be operational again.
If th e display message does not disappear: #
Stop in accordance with the tra1c conditions. #
Secure theve hicle against rolling away. #
Switch o. theve hicle. #
Restart theve hicle.
à --- km/h *D
SR has been switched on but is not active as you are driving at a
speed greater than 18 km/h. If you drive at a speed below 18 km/h,
DSR will automatically brake again tothe set speed.
Ã
Off *D
SRwas deacti vated.
If it was not deacti vatedby the driver, e.g. due toa malfunction of the
ESP ®
, a warning tone also sounds. 292 292
Display messa
ges and warning and indicator lamps

Displa
Displa
y messag
y messag es P
es P ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
à inoperative *A
warning tone also sounds. DSR is una vailable due toa malfunction. #
Consult a quali/ed specialist workshop.
Active Parking Assist
cancelled *A
n acoustic signal sounds as well. The active parking assistance sys-
te ms ha vebeen cancelled and Active Parking Assist will automatically
be abor ted. You ha vetouched the steering wheel, forex ample, or
ha ve driven at too high a speed. #
Steer and brake manuall y. #
Repeat the parking procedure if necessar y.Comply with the deac-
tivation conditions (/ page 170).
Active Parking Assist
inoperative *P
ARKTRONIC is malfunctioning or defecti ve. #
Comply with the inst ructions and aids in "Function of
PA RKTRONIC"(/ page 165). #
Ifth e display message continues tobe displa yed, consult a quali-
/ed specialist workshop:
*A ctive Parking Assist is not available or is malfunctioning. #
Switch o. theve hicle, wait a short while, then switch it on again.
If th e display message continues tobe displa yed, or if the display does
not show thej symbol: #
Consult a quali/ed specialist workshop.
Lane Keeping Assist
inoperative *L
ane Keeping Assist is malfunctioning. #
Consult a quali/ed specialist workshop.
Lane Keeping Assist cur-
rently unavailable See
Owner's Manual *L
ane Keeping Assist has been switched o. and is temp orarily non-
operational.
The following causes are possible:
R The windscreen is dirty in the camera's /eld of vision.
R Visibility is impaired due toheavy rain, snow or fog.
R Lane markings are absent for a long period of time.
R The lane markings are worn, dark or co veredby dirt or sno w,for
ex ample.
If th e causes mentioned abo veno longer app ly,th e display message
will disappear and Lane Keeping Assist will be operational again.
If th e display message does not disappear: #
Stop in accordance with the tra1c conditions. #
Secure theve hicle against rolling away. #
Clean the windscreen.
Traffic Sign Assist inoper-
ative *
Tra1c Sign Assist is malfunctioning. #
Consult a quali/ed specialist workshop.
Traffic Sign Assist cur-
rently unavailable See
Owner's Manual *
Tra1c Sign Assist has been switched o. and is temp orarily non-
operational. Display messages and
warning and indicator lamps
293 293

Displa
Displa
y messag
y messag es P
es P ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
¯ AdBlue system Malfunc-
tion See Owner's Manual *
Awa rning tone also sounds. The AdBlue ®
system is malfunctioning. #
Consult a quali/ed specialist workshop immediatel y.
¯ AdBlue malfunction
Emer. oper. in XXX km
See Owner's Manual *
Awa rning tone also sounds. The AdBlue ®
system is malfunctioning.
The displa yed distance is the maximum you can drive. If you subse-
qu ently start the engine again, you will be able todrive theve hicle
only at a maximum speed of 20 km/h forth e distance shown. ATer
th at, the engine management system will pr eventthe engine from
being star ted again. #
Consult a quali/ed specialist workshop immediatel y.
¯ Limp-home mode: 20
km/h No start ... km
See Owner's Manual. *
Awa rning tone also sounds. The AdBlue ®
system is malfunctioning.
Yo u may continue todrive the displa yed distance at a maximum speed
of 20 km/h. If you subsequently switch o. the engine, the engine
management system will pr event the engine from being star ted again. #
Drive on toaqu ali/ed specialist workshop.
or #
Stop theve hicle in accordance with the tra1c conditions and con-
sult a quali/ed specialist workshop.
¯
Refill AdBlue Start not
possible *
Awa rning tone also sounds. The AdBlue ®
system is malfunctioning.
Yo u can no longer start the engine. #
Inform a quali/ed specialist workshop immediatel y. T T
yr
yr es
es Displa
Displa y messag
y messag es P
es P ossible causes/conseq
ossible causes/conseq uences and
uences andM
M Solutions
Solutions
Rectify tyre pressure *The tyre pressure is too low in at least one of the tyres, or the di.er-
ence in tyre pressure between the individual wheels is toogr eat. #
Check the tyre pressure at the next opportunity (/ page 258). #
Correct the tyre pressure as necessar y. #
Restart the tyre pressure monitoring system (/ page 258).
Check tyre(s) *Awarning tone also sounds.
The tyre pressure in one or more tyres has dropped signi/cantl y.&
W
WARNI NG
ARNI NGRisk of an accident due toinsu1cient tyre pres-
sure
R The tyres can burst.
R The tyres can wearexcessively and/or une venly.
R The driving characteristics as well as the steering and braking
may be greatly impaired. 298
298
Display messages and
warning and indicator lamps

Displa
Displa
y messag
y messag es P
es P ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Yo u could then lose control of theve hicle. #
Obser vethere commended tyre pressures. #
Adjust the tyre pressure if necessar y. #
Stop theve hicle without steering or braking sudden ly.Pa y atten-
tion tothe tra1c conditions. #
Secure theve hicle against rolling away. #
Check the tyres. If necessar y,replace the wheel (/ page 261). #
Check the tyre pressure (/ page 258). Correct the tyre pressure
as necessar y.
Warning tyre defect *The tyre pressure in one or more tyres has dropped sudden ly.&
W
WARNI NG
ARNI NGRisk of an accident from driving with a 0at tyre
R The tyres can overheat and cause a /re.
R The driving characteristics as well as the steering and braking
may be greatly impaired.
Yo u could then lose control of theve hicle. #
Do not drive on with a 0at tyre. #
Obser vethe no tes on 0at tyres. #
Stop theve hicle without steering or braking sudden ly.Pa y atten-
tion tothe tra1c conditions. #
Secure theve hicle against rolling away. #
Check the tyres. If necessar y,replace the wheel (/ page 261).
Tyre press. monitor cur-
rently unavailable *D
uetoa source of radio inter fere nce, no signals from the tyre pres-
sure sensors are being received. The tyre pressure monitoring system
is temp orarily malfunctioning.
The tyre pressure monitoring system will restart au tomatically as soon
as the cause has been recti/ed.
Wheel sensor(s) missing *There is no signal from the tyre pressure sensor of at least one tyre.
The display is not showing any pressure value forth e tyre in question. #
Have thefa ulty tyre pressure sensor replaced at a quali/ed spe-
cialist workshop.
Tyre pressure monitor
inoperative No wheel
sensors *T
he wheels /tted do not ha vesuitable tyre pressure sensors. The tyre
pressure moni toring system is deactivated. #
Fit wheels with suitable tyre pressure sensors.
The tyre pressure monitoring system will switch on aTer a few
minutes of driving.
Tyre pressure monitor
inoperative *T
he tyre pressure moni toring system is malfunctioning. #
Consult a quali/ed specialist workshop. Display messages and
warning and indicator lamps
299
299

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions &
W
WARNING
ARNING Risk of skidding if EBD, ABS and ESP ®
are malfunc-
tioning
The wheels may block during braking and ESP ®
does not per form
any vehicle stabilization.
The steerability and braking characteristics are heavily impaired and
th e braking distance may increase. In addition, other driving saf ety
systems are switched o.. #
Drive on carefull y. #
Have the brake system checked immediately at a quali/ed
specialist workshop. #
Switch o. theve hicle, wait a short while, then switch it on again. #
Check whe ther the display message has disappeared and ESP ®
is
operational.
If th e display message continues tobe shown: #
Drive on carefull y. #
Consult a quali/ed specialist workshop immediatel y.
J Brake system warning
lamp *The
red brake system warning lamp is on while theve hicle is on. A
wa rning tone also sounds.
The brake forc e boosting is malfunctioning. &
W
WARNING
ARNING Risk of accident and injury if brake forc e boosting is
malfunctioning
If brake forc e boosting is malfunctioning, increased brake pedal
fo rc e may be necessary for braking. The braking characteristics
may be impaired. The braking dis tance can increase in eme rgency
braking situations. #
Stop in a safe location immediatel y.Do not continue driving! #
Consult a quali/ed specialist workshop. #
Secure theve hicle against rolling away.
J Brake system warning
lamp *T
he red brake system warning lamp is on while theve hicle is on.
There is insu1cient brake 0uid in the brake 0uid reser voir. &
W
WARNING
ARNING Risk of an accident due tolow brake 0uid le vel
If th e brake 0uid le vel is too lo w,the braking e.ect and the braking
ch aracteristics may be impaired. #
Stop theve hicle as soon as possible, paying attention toroad
and tra1c conditions. Do not continue driving. #
Consult a quali/ed specialist workshop. #
Do not top up the brake 0uid. #
Secure theve hicle against rolling away. Display messages and
warning and indicator lamps
305
305