
Display messages
Possible causes/consequences and M
MSolutions #
Drive on.
Traffic Sign Assist inopera-
tive *T
raffic Sign Assist is malfunctioning. #
Stop theve hicle in accordance with the tra ffic conditions and restart the engine. #
Ifth e display message still appears, consult a qualified specialist workshop.
Blind Spot Assist currently
unavailable See Owner's
Manual *B
lind Spot Assist is temp orarily una vailable.
The sy stem limits ha vebeen reached (/ page243).
On ce the cause of the problem is no longer present, the sy stem will be available again. #
Drive on.
or #
Ifth e display message does not disappear, stop theve hicle in accordance with the tra ffic conditions and restart
th e engine.
Blind Spot Assist inopera-
tive *B
lind Spot Assist is malfunctioning. #
Consult a qualified specialist workshop.
Blind Spot Assist not availa-
ble when towing a trailer
See Owner's Manual *W
hen you es tablish the electrical connection tothe trailer, Blind Spot Assist will be una vailable. #
Press the left-hand Touch Control and ackn owledge the display message. Display messages and
warning/indicator lamps 413 

Display messages
Possible causes/consequences and M
MSolutions
Active Blind Spot Assist
currently unavailable See
Owner's Manual *A
ctive Blind Spot Assi stistemp orarily una vailable.
The sy stem limits ha vebeen reached (/ page243).
On ce the cause of the problem is no longer present, the sy stem will be available again. #
Drive on.
or #
Ifth e display message does not disappear, stop theve hicle in accordance with the tra ffic conditions and restart
th e engine.
Active Blind Spot Assist
inoperative *A
ctive Blind Spot Assi stis malfunctioning. #
Consult a qualified specialist workshop.
Active Blind Spot Assist
not available when towing
a trailer See Owner's Man-
ual *W
hen you es tablish the electrical connection tothe trailer, Active Blind Spot Assi stwill be una vailable. #
Press the left-hand Touch Control and ackn owledge the display message.
Active Lane Keeping Assist
currently unavailable See
Owner's Manual *A
ctive Lane Keeping Assist is temp orarily una vailable.
The ambient conditions are outside the sy stem limits (/ page246).
As soon as the ambient conditions are within the sy stem limits, the sy stem will become available again. #
Drive on. 414
Displaymessa ges and warning/indicator lamps 

Display messages
Possible causes/consequences and M
MSolutions
Active Lane Keeping Assist
inoperative *A
ctive Lane Keeping Assist is malfunctioning. #
Consult a qualified specialist workshop.
ç
Ã
Ä
¸ Currently unavailable
Radar sensors dirty *T
heradar sensor sy stem is malfunctioning. Possible causes:
R dirt on the sensors
R heavy rain or snow
R extended country driving wi thout other traf fic, e.g. in the desert
Driving sy stems and driving saf ety sy stems may be malfunctioning or temp orarily una vailable.
Once the cause of the problem is no longer present, the driving sy stems and driving saf ety sy stems will be available
again.
If th e display message does not disappear: #
Stop theve hicle in accordance with the tra ffic conditions. #
Clean all sensors (/ page319). #
Restart the engine. Display messages and
warning/indicator lamps 415 

Display messages
Possible causes/consequences and M
MSolutions
T
!
÷ inoperative See Owner's
Manual *
EBD, ABS and ESP ®
are malfunctioning.
Other driving sy stems and driving saf ety sy stems (e.g. BAS) may also be malfunctioning. &
WARNING Risk of skidding if EBD, ABS and ESP ®
are malfunctioning
The wheels may block du ring braking and ESP ®
does not pe rform any vehicle stabilization.
The steerability and braking characteristics are heavily impaired and the braking dis tance may increase. In addi‐
tion, other driving saf ety sy stems are switched off. #
Drive on carefull y. #
Have the brake sy stem checked immediately at a qualified specialist workshop. Active Brake Assist Func-
tions currently limited See
Owner's Manual *
Ve hicles with the Driving Assistance Package: 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 Package: Active Brake Assi stistemp orarily una vailable. #
Drive on.
As soon as the ambient conditions are within the sy stem limits, the sy stem will become available again. #
Ifth e display message does not disappear, stop theve hicle in accordance with the tra ffic conditions and restart
th e engine. Display messages and
warning/indicator lamps 421 

Display messages
Possible causes/consequences and M
MSolutions
h Check tyre(s) *T
he tyre pressure in one or more tyres has dropped significantl y.The wheel position will be displa yed. &
WARNING Risk of an accident due toinsuf ficient tyre pressure
R The tyres can bu rst.
R The tyres can wearexc essively and/or une venly.
R The driving characteristics as well as thesteering and braking may be greatly impaired.
Yo u could then lose control of theve hicle. #
Obser vethere commended tyre pressures. #
Adjust the tyre pressure if necessar y. #
Stop theve hicle in accordance with the tra ffic conditions. #
Check the tyre pressure (/ page 346) andthe tyres.
h
Rectify tyre pressure *T
he tyre pressure is too low in at least one of the tyres, or the dif fere nce in tyre pressure between the individual
wheels is too great. #
Check the tyre pressure and add air, if necessar y. #
When the tyre pressure is cor rect, restart the tyre pressure monitor (/ page 349). Display messages and
warning/indicator lamps 427 

Display messages
Possible causes/consequences and M
MSolutions #
Stop theve hicle in accordance with the tra ffic conditions. #
Check the tyre pressure (/ page 346) andthe tyres. #
When the tyre pressure is cor rect, restart the tyre pressure loss warning sy stem (/ page 349).
Check tyre pressures then
restart Run Flat Indicator *T
he tyre pressure loss warning sy stem generated a displ aymessa geand has not been restar ted since. #
When the tyre pressure is cor rect, restart the tyre pressure loss warning sy stem (/ page 349).
Run Flat Indicator inopera-
tive *T
he tyre pressure loss warning sy stem is malfunctioning. #
Consult a qualified specialist workshop. Exhaust
gas af tertre atment Display messages
Possible causes/consequences and M MSolutions
Ø Refill AdBlue See Owner’s
Manual *
The AdBlue ®
leve l has fallen into there ser verange. #
Top up AdBlue ®
immediately (/ page 184). 430
Displaymessa ges and warning/indicator lamps 

Au
tomatic engine stop (ECO start/
sto p function) .......................................... 17 0
Au tomatic front passen ger front air‐
bag deacti vation sy stem
see Automatic front passenger front
airbag shutoff
Au tomatic front passen ger front air‐
bag shu toff .......................................... 44, 46
Fu nction of the automatic front
passenger front airbag deactivation
sy stem ................................................... 44
PA SSENGER AIR BAG indicator lamp .... .46
Au tomatic mir rorfo lding function
Ac tivating/deactivating ...................... .150
Au tomatic seat adjustment
Setting ................................................. 104
Au tomatic transmission
DIRECT SELECT le ver ........................... 176
Drive program display .......................... 175
Drive programs .................................... 174
DY NA MIC SELECT switch ..................... 174
Engaging drive position ........................ 178
Engaging neutral .................................. 17 7
Engaging pa rkposition ........................ 178Engaging
reve rsege ar ........................ .177
Kickdown ............................................. 17 9
Manual gear changing .......................... 178
St eering wheel gearshift paddles ........ .178
Tr ansmission position display .............. 176
Tr ansmission positions ........................ .176
Axle load Perm issible .......................................... 363
Tr ailer operation .................................. 378 B
Bag hook .................................................. 12 5
Ball ne ck
Extending/r etra cting ........................... 24 9
Extending/r etra cting (MBUX multi‐
media sy stem) .....................................2 51
BA S (Brake Assist Sy stem) .................... .195
Battery Key ........................................................ 73
Re mo tecontrol (s tationary heater) ...... 15 9
Battery see Battery (vehicle) Battery (vehicle)
...................................... 336
Charging .............................................. 335
Charging (Remo teOnline) .................... 16 5
No tes ................................................... 331
No tes (s tarting assis tance and
ch arging) ............................................ .333
Re placing ............................................ 336
St arting assis tance .............................. 335
Belt see Seat belt
Bic ycle rack
Load capacity ...................................... 378
Tr ailer operation .................................. 254
Blind Spot Assist .................................... .243
Ac tivating/deactivating ...................... .245
Fu nction .............................................. 24 3
Sy stem limitations ...............................2 43
Blo wer
see Climate control
BlueTEC see AdBlue ®
Bonn et
Re setting (active bonnet) .................... 309 454
Index 

É
Max. speed 35 km/h (white
display message) ..................................4 11
î Max. speed 40 km/h ..................417
ð Maximum speed exceeded ......... 406
î Notpossible in cur rent drive
program ............................................... 417
Ø ................................................... 431
ç Off.............................................. 405
ë Off.............................................. 408
ï Operation only possible in
transmission position P .......................389
! Parking brake See Owner's
Manual ................................................ 399
É Please reduce speed ...........410,411
Ý Please wait 48 V battery charg‐
ing ...................................................... .425
_ Rear left seat backrest not
loc ked (Example) .................................3 93
h Rectify tyre pressure .................. 427 Ø
Refill Ad Blue See Owne r’s
Manual ................................................ 430
! Release parking brake ................ 402
¸ Replace air cleaner .....................396
À Replace key See Owner's Man‐
ual ...................................................... .383
Á Replace key ................................ 383
8 Reser vefuel le vel...................... .396
6 Restra int sys. malfunction Con‐
sult workshop ...................................... 380
# See Owner's Manual .................. 423
Ù Steering malfunction Incre ased
ph ysical ef fort See Owner's Manual .... 391
Ù Steering malfunction Stop
immediately See Owner's Manual .......392
# Stop vehicle Lea veengine run‐
ning ..................................................... 424
# Stop vehicle See Owner's Man‐
ual .......................................................4 24
É Stop vehicle Vehicle too low .......4 09 ç
suspended ................................. 405
: Switch off lights ......................... 386
: Switch on headla mps................. 386
Ø Top up AdBlue Emergency op.
in XXX miles See Owner's Manual ....... 431
+ Top up coolant See Owner ’s
Manual ................................................ 394
¥ Top up washer fluid .................... 394
ï Trailer coupling extending… ........ 389
! Turn on the ignition torelease
th e parking brake ................................ 403
d Vehicle is operational Switch
off ignition before exiting .................... 389
É Vehicle rising Please wait.......... .410
É Vehicle rising .............................. 41 0
h Warning tyre defect .................... 428
h Wheel sensor(s) missing ............ 426
Ø XX,X l Top up AdBlue Switch on
ignition, wait 60 sec. or eng. start
not poss. .............................................. 431 460
Index