Page 408 of 473

Display messages
Possible causes/consequences and M
MSolutions
Active Brake Assist Func-
tions 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 or only partially
av ailable. #
Consult a qualified specialist workshop. Mercedes me connect
Display messages
Possible causes/consequences and M MSolutions
Mercedes me connect
Services limited See Own-
er's Manual *T
hevehicle functions forfa ult de tection are restricted.
At least one of the main functions of the Mercedes me connect sy stem is malfunctioning. #
Obser vethe no tes on the diagnostics connection (/ page 28). #
Consult a qualified specialist workshop.
G Inoperative *A
t least one of the main functions of the Mercedes me connect sy stem or of the SOS emer gency call sy stem is
malfunctioning. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 405
Page 426 of 473

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
R The coolant le vel is too low
R The air supply tothera diator is obstructed
R The radiator fan is faulty
If th ere is an additional warning tone, the coolant temp erature has exceeded 120 °C. &
WARNING Danger of bu rns when opening the bonn et
If yo u open the engine bonn etwhen the engine has overheated or during a fire inthe engine compartment, you
could come into contact wi thhot gases or other escaping operating fluids. #
Before opening the bonn et, allow the engine tocool down. #
Intheeve nt of a fire inthe engine compartment, keep the engine bonn etclosed and call thefire service. #
Stop theve hicle immediately in accordance with the traf fic conditions and switch off the engine. Do not continue
driving. #
Notethe messages on the multifunction displa y.
If th e coolant temp erature display is at the lo wer end of thete mp erature scale: #
Consult a qualified specialist workshop.
or #
Exit theve hicle and keep a safe dis tance from it until the engine has cooled down. #
Check the coolant le vel (/ page 300). Display messages and
warning/indicator lamps 423
Page 438 of 473

Air-conditioning sy
stem
see Climate control
Air-recirculation mode ............................14 4
Air-water duct .......................................... 302
Ke eping free ........................................3 02
Airbag ........................................................ .42
Ac tivation .............................................. 36
Fr ont airbag (driver, front passenger) ....42
Ins tallation locations ............................ .42
Knee airbag ........................................... 42
Overview ............................................... 42
PA SSENGER AIR BAG indicator lamp .... .47
Pr otection ..............................................43
Re duced pr otection ...............................44
Side airbag ............................................ 42
Wi ndow airbag ....................................... 42
Ai rflow
Setting ................................................ .141
AIRS CARF
Ad justing the outlets ........................... 15 0
Switching on/off ................................. 105
Alarm sy stem
see ATA (anti-theft alarm sy stem) All-wheel drive
see 4MATIC
Ambient lighting Setting (multimedia sy stem) ................1 32
Android Auto
see Smartphone integration
Animals Pets in theve hicle ................................. 69
Anti-lock braking sy stem
see ABS (Anti-lock Braking Sy stem)
Anti-skid chains
see Snow chains
Anti-theft pr otection
Ad ditional door lock .............................. 73
Immobiliser ............................................ 91
Anticipatory occupant pr otection
see PRE- SAFE®
(anticipatory occu‐
pant pr otection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
Apple CarPlay ®
see Smartphone integration Assistance sy
stems
see Driving saf ety sy stem
ASS YST PLUS ........................................... 295
Battery disconnection pe riods .............2 96
Displ aying the service due date ........... 295
Fu nction/no tes ................................... 295
Re gular maintenance work .................. 295
Special service requ irements .............. 295
ATA (anti-theft ala rmsystem) .................. .91
Deactivating the alarm .......................... 92
Fu nction ................................................ 91
Fu nction of interior pr otection ............... 93
Priming/deactivating interior pr otec‐
tion ........................................................ 93
Priming/deactivating tow- aw ay pro‐
te ction ................................................... 93
To w- aw ay protection function ................92
AT TENTION ASSI ST......................... 22 7, 228
Fu nction .............................................. 227
Setting ................................................. 228
Sy stem limitations ...............................2 27
At tention assistant
see ATTENTION ASSIST Index
435
Page 447 of 473

Cruise cont
rol and Limiter inope ra‐
tive ...................................................... 389
Cruise control inope rative ................... 389
Cruise control off ................................ 389
Fr ont-passenger airbag disabled See
Owner's Manual ..................................3 67
Fr ont-passenger airbag enabled See
Owner's Manual ..................................3 67
Haza rdwa rning lamps malfunction‐
ing ...................................................... .373
Limiter inoperative .............................. 390
Limiter passive .................................... 389
Mercedes me connect Services limi‐
te d See Owner's Manual .....................405
Mo tor can be star ted again .................4 08
N permanently active Risk of vehicle
ro lling .................................................. 383
Only select Park (P) when vehicle is
st ationary ............................................ 381 Place
theke y in the mar ked space
See Owner's Manual ...........................370
PRE-SAFE inope rative See Owner's
Manual ................................................ 368
Re duce speed ...................................... 412
Re versing not poss. Consult work‐
shop ....................................................3 83
Risk of vehicle rolling Driver door
open and transmission not in P ...........382
Ru n Flat Indicator inope rative .............. 413
Speed limit (winter tyres) XXX km/h ... 391
St op vehicle Lea veengine running
Wa itTransmission cooling ...................384
To shift out of P or N,depress brake
and start engine .................................. 382
To switch off the engine, press the
St art/ Stop button for at least 3 sec‐
onds or 3 times. .................................. 379
Tr af fic Sign Assi stcur rently una vaila‐
ble See Owner's Manual ...................... 396 Tr
af fic Sign Assi stinope rative ............. 396
Tr ansmission Malfunction Stop ........... 383
Ty re press. monitor cur rently una vail‐
able .................................................... .409
Ty re press. monitor inoperative ...........409
Ty re press. monitor inoperative No
wheel sensors .................................... .409
Ty re pressure Check tyres ....................412
Ty re(s) ove rheated ................................ 411
Wi thout changing gear, consult work‐
shop ....................................................3 83
Display on the windscreen
see Head-up display
Distance control see Active Dis tance Assi stDISTRONIC
DI STRO NIC
see Active Dis tance Assi stDISTRONIC
Door Additional door lock .............................. 73
Locking (emergency key) ...................... .77
Opening (from the inside) ......................74
Po we r closing function ......................... .77444
Index