Page 412 of 506
Displaymessages
Possible causes/consequences and MSolutions
#Switch offthe ignition and turn it back on.
To appl y:
#Release and then apply the electric parking brake manually .
To release:
#Apply and then release the electric parking brake manuall y.
If th e electric parking brake cannot be applied orthere dF (USA only) or !(Canada only) indicator lamp
continues toflash:
#Do not continue driving under any circum stances. Consult a qualified specialist workshop.
#Where necessar y,also safeguard the par kedve hicle against rolling away.
The yellow ! indicator lamp is on and there dF indicator lamp (USA only) or the! indicator lamp (Can‐
ada only) flashes for app roxima tely ten seconds af terth e electric parking brake has been applied or released. It
th en remains lit or goes out. The electric parking brake is malfunctioning.
If th e batte rycharge leve l is too lo w:
#Char gethe batter y.
To appl y:
#Switch the ignition off.
The electric parking brake is applied automaticall y.
410
Displ aymessage s andwarning/indicator lamps
Page 413 of 506
Displaymessages
Possible causes/consequences and MSolutions
If th e electric parking brake should not be applied, e.g. when washing theve hicle in an automatic car wash or when
having theve hicle towe daw ay, lea vethe ignition switched on. An exception is when having theve hicle towe d with
th ere ar axle raised.
If th e electric parking brake is not applied automatically:
#Switch off the ignition and turn it back on.
#Re lease and then apply the electric parking brake manually .
If it is still not possible toapply the electric parking brake:
#Visit a qualified specialist workshop.
#Where necessar y,also safeguard the par kedve hicle against rolling away.
To release:
#Ifth e conditions for au tomatic release are fulfilled and the electric parking brake is not released automaticall y,
re lease the electric parking brake manually .
If it is still not possible torelease the electric parking brake:
#Do not continue driving under any circums tances. Consult a qualified specialist workshop.
Display messages and warning/indicator lamps 41
1
Page 414 of 506
Displaymessages
Possible causes/consequences and MSolutions
$
(USA only)
J
(Canada only)
& K H F N % U D N H ) O X L G / H Y H O*T
here is insuf ficient brake fluid inthe brake fluid reser voir.
&
WARNING Risk of an accident due tolow brake fluid le vel
If th e brake fluid leve l is too lo w,the braking ef fect and the braking characteristics may be impaired.
#Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
Do not continue driving under any circums tances.
#Consult a qualified specialist workshop.
Do not add brake fluid.
#Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. Do not
continue driving under any circums tances.
#Consult a qualified specialist workshop.
Do not add brake fluid.
#
& K H F N % U D N H 3 D G : H D U *T
he brake linings ha vereached thewe ar limit.
#Visit a qualified specialist workshop.
G
, Q R S H U D W L Y H *O
ne or more of the mbrace sy stem's main features are malfunctioning.
#Vi sit a qualified specialist workshop.
41 2
Displ aymessage s andwarning/indicator lamps
Page 415 of 506
Displaymessages
Possible causes/consequences and MSolutions
5 D G D U 6 H Q V R U V ' L U W \ 6 H H
2 S H U D W R U
V 0 D Q X D O *T
heradar sensor sy stem is malfunctioning. Possible causes are:
RSoiling of the sensors
RHeavy rain
REx tended country driving wi thout moving traf fic, e.g. in the desert
Driving sy stems and driving saf etysy stems may be malfunctioning or temp orarily una vailable.
Once the cause of the problem is no longer present, driving sy stems and driving saf etysy stems are available again.
If th e display message does not disappear:
#Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
#Clean all sensors .
#Restart the engine.
$ F W L Y H % U D N H $ V V L V W ) X Q F
W L R Q V & X U U H Q W O \ / L P L W H G 6 H H
2 S H U D W R U
V 0 D Q X D O *
Ve hicles with the Driving Assistance pa ckage: Active Brake Assi stwith cross-traf fic function, Evasi veSteering
Assist or PRE‑SAFE
®PLUS are temp orarily una vailable or only partially available.
Ve hicles without the Driving Assistance pa ckage: Active Brake Assi stistemp orarily una vailable.
The ambient conditions are outside the sy stem limitations .
#Drive on.
As soon as the ambient conditions are within the sy stem limitations, the sy stem will become available again.
#Ifth e display message does not disappear, stop theve hicle while paying attention toroad and traf fic conditions
and restart the engine.
Display messages and warning/indicator lamps 41
3
Page 416 of 506
Displaymessages
Possible causes/consequences and MSolutions
$ F W L Y H % U D N H $ V V L V W ) X Q F
W L R Q V / L P L W H G 6 H H 2 S H U D
W R U
V 0 D Q X D O *
Ve hicles with Driving Assistance pac kage:Ac tive Brake Assi stwith cross-traf fic function, Evasi veSteering
Assist or PRE‑SAFE
®PLUS is malfunctioning.
Ve hicles without the Driving Assistance pa ckage: Active Brake Assi stis malfunctioning.
#Visit a qualified specialist workshop.
3 5 ( 6 $ ) ( , Q R S H U D W L Y H 6 H H
2 S H U D W R U
V 0 D Q X D O *
PRE‑SAFE
®functions are malfunctioning.
#Visit a qualified specialist workshop.
3 5 ( 6 $ ) ( , P S X O V H 6 L G H
, Q R S H U D W L Y H 6 H H 2 S H U D W R U
V
0 D Q X D O *
PRE-SAFE
®Impulse Side is malfunctioning or inoperative af ter having already been triggered.
#Vi sit a qualified specialist workshop.
41 4
Displ aymessage s andwarning/indicator lamps
Page 429 of 506
Displaymessages
Possible causes/consequences and MSolutions
$ F W L Y H % O L Q G 6 S R W $ V V L V W
, Q R S H U D W L Y H *A
ctive Blind Spot Assist is malfunctioning.
#Visit a qualified specialist workshop.
$ F W L Y H 3 D U N L Q J $ V V L V W 3 D U N
L Q J & D Q F H O H G (Example) *T
he parking assis tance from Active Parking Assist was inter rupte d.You ha veopened the driver's door or touched
th esteering wheel, forex ample.
#Steer and brake manuall y.
$ F W L Y H 3 D U N L Q J $ V V L V W D Q G
3 $ 5 . 7 5 2 1 , & , Q R S H U D W L Y H
6 H H 2 S H U D W R U
V 0 D Q X D O *A
ctive Parking Assist and Parking Assist PARKTRONI Caremalfunctioning .
#Stop theve hicle, paying attention toroad and traf fic conditions, and restart the engine.
#Ifth e display message continues tobe displa yed, consult a qualified specialist workshop.
$ F W L Y H 3 D U N L Q J $ V V L V W
0 D Q H X Y H U L Q J $ V V L V W D Q F H
5 H V W U L F W H G 6 H H 2 S H U D W R U
V
0 D Q X D O *A
ctive Parking Assist and Parking Assist PARKTRONI Carete mp orarily una vailable. The ambient conditions are out‐
side the sy stem limitations (
→page 199). Be wareofthe entire vehicle sur roundings.
#As soon as the ambient conditions are within the sy stem limitations, the sy stem will become available again.
7 U D I I L F 6 L J Q $ V V L V W & X U
U H Q W O \ 8 Q D Y D L O D E O H 6 H H
2 S H U D W R U
V 0 D Q X D O *T
raffic Sign Assist is temp orarily una vailable.
#Drive on.
Once the cause of the problem is no longer present, the sy stem will be available again.
Display messages and warning/indicator lamps 427
Page 442 of 506
Displaymessages
Possible causes/consequences and MSolutions
Â
3 O D F H W K H . H \ L Q W K H
0 D U N H G 6 S D F H 6 H H 2 S H U D
W R U
V 0 D Q X D O*T
he SmartK eydetection function is malfunctioning.
#Change the location of the SmartK eyintheve hicle.
#Start theve hicle with the SmartK eyinthestow age compartment .
Vehicle
Display messages
Possible causes/consequences and MSolutions
$ S S O \ % U D N H W R 6 K L I W I U R P
3
*
Yo u ha veattem ptedto shift the transmission out of position jand into ano ther transmission position.
#Depress the brake pedal.
7 R ' H V H O H F W 3 R U 1
' H S U H V V % U D N H D Q G 6 W D U W
( Q J L Q H *
Yo u ha veattem ptedto shift the transmission out of position jori into ano ther transmission position.
#Depress the brake pedal.
#St art the engine.
' U L Y H U
V ' R R U 2 S H Q
7 U D Q V P L V V L R Q 1 R W L Q 3 5 L V N
R I 9 H K L F O H 5 R O O L Q J $ Z D \ *
The driver's door is not fully closed and the transmission is in position k,iorh.
#Shift the transmission toposition jwhen you park theve hicle.
44 0
Displ aymessage s andwarning/indicator lamps
Page 443 of 506
Displaymessages
Possible causes/consequences and MSolutions
1 3 H U P D Q H Q W O \ $ F W L Y H 5 L V N
R I 5 R O O L Q J $ Z D \ *
While theve hicle is rolling or while you are driving, the transmission has been shif tedto position i.
#Depress the brake pedal tostop and, when theve hicle is stationar y,shift the transmission toposition j.
#Tocontinue your journe y,shift the transmission toposition hork.
2 Q O \ 6 K L I W W R
3
Z K H Q 9 H K L
F O H L V 6 W D W L R Q D U \ *
The transmission can only be shif tedto position jwhen theve hicle is stationar y.
6 H U Y L F H 5 H T X L U H G ' R 1 R W
6 K L I W * H D U V 9 L V L W ' H D O H U *T
he transmission is malfunctioning. The transmission position can no longer be shif ted.
#When the transmission is in position h, consult aqualified specialist workshop and do not change the trans‐
mission position.
#Fo r all other transmission positions, park theve hicle safely.
#Consult a qualified specialist workshop or breakdown service.
d
9 H K L F O H 2 S H U D W L R Q D O 6 Z L W F K
W K H , J Q L W L R Q 2 I I % H I R U H ( [ L W
L Q J *Y
ou are leaving theve hicle when it is in a ready-to-drive state.
#When you lea vetheve hicle, switch off the ignition and take the SmartK eywith you.
#Ifyo udo not lea vetheve hicle, switch off the electrical consumers, e.g. the seat heater. Otherwise, the12 V
battery might dischar geand it will then only be possible tostart theve hicle using a donor battery (s tarting
assis tance).
Display message s andwarning/indicator lamps 44
1
