
Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
Otherwise: #
Lea vetheve hicle and keep a safe dis tance from theve hicle until the engine has cooled down. #
Check the coolant le vel . #
Make sure that the air supply tothera diator is not obstructed. #
Avoiding high loads on the engine, drive on tothe nearest qualified specialist workshop. In doing so, ensure that the
coolant temp erature display remains below 120 °C. Displ
aymessa ges and warning/indicator lamps 515

1,
2, 3 ...
12 V so cket
see Soc ket (12 V)
230 V so cket ............................................ 127
360° Camera .......................................... .224
Assigning as a favo urite ...................... .227
Care .................................................... 383
Fu nction .............................................. 224
Selecting a view .................................. 226 A
A/C function Activating/deactivating (control
panel) ................................................... 151
Ac tivating/deactivating (multimedia
sy stem) ................................................ 151
ABS (Anti-lock Braking Sy stem) ............ .189
Ac celeration
see Kickdown
Ac cess data
Editing ................................................ .342
Setting ................................................. 340 Ac
oustic locking verification signal
Swit ching on/off .................................. .65
Ac tive Blind Spot Assi st.......................... 24 2
Ac tivating/deactivating ...................... .244
Brake application ................................. 24 2
Fu nction/no tes ................................... 24 2
Sy stem limits ....................................... 24 2
Tr ailer operation .................................. 24 2
Ac tive bonn et(pedestrian pr otection) ..373
Operation ............................................ 373
Re setting ............................................. 373
Ac tive Brake Assi st................................. 194
Fu nction/no tes .................................... 194
Setting ................................................. 19 8
Ac tive Eme rgency Stop Assist ................ 210
Ac tive Lane Change Assi st..................... 210
Ac tive Lane Keeping Assist .................... 24 4
Ac tivating/deactivating ...................... .246
Fu nction .............................................. 24 4
Sensitivity (function/no tes) ................. 247
Setting the sensitivity .......................... 247
Sy stem limits ....................................... 24 4
Tr ailer operation .................................. 24 4Ac
tive light function ................................ 13 4
Ad aptive brake lights ..............................19 9
Ad aptive cruise control
see Dis tance Pilot DISTRONIC
Ad aptive functions, MULTIBEAM LED
see Intelligent Light Sy stem
Ad aptive Highbeam Assist Plus
Ac tivating/deactivating ...................... .137
Fu nction .............................................. 13 6
Ad Blue ®
.................................................... 437
Ad ditives .............................................4 37
Filling capacity .................................... 438
Low outside temp eratures ...................4 37
No tes ................................................... 178
Purity ................................................... 437
Ad ditional door lo ck.................................. 68
Ad diti ves.................................................. 438
Ad Blue ®
............................................... 437
Engine oil ............................................ 438
Fu el ..................................................... 435
Ad diti ves (engine oil)
see Additives 518
Index

Immobiliser ...........................................88
Interior pr otection ................................. 89
St opping the alarm (A TA) .......................88
To w- aw ay protection ............................. 89
Anticipatory occupant pr otection .....4 3,44
Apple CarPlay™ ...................................... .336
Connecting an iPhone ®
....................... 337
Ending ................................................. 337
Overview ............................................. 336
To ne settings ....................................... 337
Tr ans ferred vehicle data ......................3 39
Ashtr ay
Fr ont centre console ........................... 12 5
Re ar .................................................... .125
Assistance graphic
Menu (on-boa rdcompu ter) .................. 258
Assistance sy stems
see Driving saf ety sy stem
ASS YST PLUS ........................................... 372
Battery disconnection periods ............. 373
Displ aying the service due date ........... 372
Fu nction/no tes ................................... 372
Re gular service work ........................... 372
Special service requirements .............. 372ATA
(anti-theft ala rmsystem)
Fu nction ................................................ 88
St opping the alarm ................................ 88
ATA (anti-theft ala rmsystem)
see Anti- theft pr otection
AT TENTION ASSI ST......................... 238, 239
Ac tivating/deactivating ...................... .239
Fu nction .............................................. 238
Sy stem limitations ...............................2 38
At tention assistant
see ATTENTION ASSIST
Au dio mode
Ac tivating media mode ........................ 348
Connecting USB devices ...................... 351
Co pyright ............................................. 348
Information .......................................... 347
Inserting/re moving an SD card .......... .348
Media sea rch ....................................... 354
Overview ............................................. 350
Pa use and playback function .............. .351
Selecting a track .................................. 351
Selecting pl ayback options .................. 351
Tr ack list .............................................. 351 Au
thorised workshop
see Qualified specialist workshop
Au tomatic distance control
see Dis tance Pilot DISTRONIC
Au tomatic driving lights .........................13 2
Au tomatic engine start (ECO start/
sto p function) .......................................... 16 6
Au tomatic engine stop (ECO start/
sto p function) .......................................... 16 6
Au tomatic front passen ger airbag
shu toff
see Front passenger airbag shutoff
Au tomatic mir rorfo lding function
Ac tivating/deactivating ...................... .147
Au tomatic transmission
DIRECT SELECT le ver ........................... 171
Drive program display .......................... 16 9
Drive programs .................................... 16 8
DY NA MIC SELECT switch .................... 16 8
Engaging drive position ........................ 173
Engaging reve rsege ar ........................ .172
Kickdown ............................................. 174
Manual gearshifting ............................ .173 520
Index

Inserting/removing
theflacon (fra‐
gr ance sy stem) .................................... 15 3
ionisation ............................................ .153
No te .................................................... 14 9
Re ar air vents ...................................... 15 9
Re ar operating unit .............................. 14 9
Re sidual heat ....................................... 15 2
Setting the air distribution ...................1 49
Setting the air flow ............................... 14 9
Setting the climate style ......................1 51
Setting the fragrance sy stem ............... 15 3
Setting thete mp erature ......................1 49
St ationary heater/ ventilation .............. 154
Switching on/off ................................. 15 0
Switching there ar wind owheater
on/off .................................................1 49
THERMATIC control panel .................... 14 9
THERMOTRONIC contro l panel ............14 9
Wi ndsc reen heater .............................. 154
Climate style
Fu nction ............................................... 151
Setting ................................................. 151
Cockpit ........................................................ .6
Overview .................................................6 COMAND Online
see Multimedia sy stem
COMAND Touch ....................................... 291
Au thorising a device ............................2 90
Child saf ety lock .................................. 291
COMAND Touch App
see COMAND Touch
Combination swit ch
see Turn signal light
Combined luggage co ver and net
At tach ing tothere ar seat backrest ...... 11 6
Ins talling/ removing .............................. 11 6
Compass .................................................. .316
Compu ter ................................................. 256
Connection status
Displ ays ............................................... 343
Overview ............................................. 343
Contacts ................................................... 322
Calling up ............................................ 322
Deleting ............................................... 324
Downloading (from mobile phone) ...... 322
Importing ............................................ 323
Information .......................................... 322 Making a call ....................................... 323
Na me form at ...................................... .323
Options ................................................ 323
Saving ................................................. 323
Controller Operating ............................................ 280
Conv enience closing ................................ .81
Con venience opening ................................ 81
Coolant (engine) Levelch eck .......................................... 378
No tes .................................................. 440
Cooling see Climate control
Copyright .................................................. .28
Cornering light function ..........................13 5
Co ver.......................................................... 79
Cross Traf fic Alert .................................. .237
Crosswind Assist Function/no tes ................................... 19 3
Cruise control .......................................... 19 9
Ac tivating ............................................ 200
Calling up a speed ............................... 200 524
Index

Display (multimedia sy
stem)
Settings .............................................. .286
Display (on-board comp uter).................. 257
Display content Menu (on-boa rdcompu ter) .................. 264
Display message ..................................... 445
Calling up (on-board co mputer) .......... .445
No tes .................................................. 445
Display messages ? .......................................... .472, 497
A ...................................................4 98
C ................................................... 497
¯ .................................................... 469
Ac tive Blind Spot Assi stcur rently
una vailable See Owner's Manual .........468
Ac tive Blind Spot Assi stinope rative .... 468
Ac tive Blind Spot Assi stnot available
when towing a trailer See Owner's
Manual ................................................ .471
Ac tive bonnet malfunction See Own‐
er's Manual ......................................... 496 Ac
tive Brake Assi stFunctions cur‐
re ntly limited See Owner's Manual ...... 456
Ac tive Brake Assi stFunctions limited
See Owner's Manual ........................... 456
Ac tive Lane Keeping Assist Camera
view restricted See Owner's Manual ... 467
Ac tive Lane Keeping Assist cur rently
una vailable See Owner's Manual .........466
Ac tive Lane Keeping Assist inopera‐
tive ...................................................... 466
bAc tive Light Sy stem inoperative .. 499
Ad aptive Highbeam Assist Plus Cam‐
era view restricted See Owner's
Manual ................................................ 501
Ad aptive Highbeam Assist Plus cur‐
re ntly una vailable See Owner's Man‐
ual ...................................................... .501
Ad aptive Highbeam Assist Plus inop‐
erative ................................................ .500 4Ad
d 1 litre engine oil when next
re fuelling ............................................. 477
Air conditioning Malfunction See
Owner's Manual .................................. 493
App lybrake todeselect Park (P)
position ...............................................4 89
ÀAT TENTION ASSIST inoperative ... 462
ÀAT TENTION ASSIS T:Take a
break! .................................................. 462
bAU TOlights inope rative ............... 500
Au xilia rybattery malfunction .............. 492
_Before starting the engine, turn
th esteering wheel. .............................. 493
Blind Spot Assist cur rently una vaila‐
ble See Owner's Manual ...................... 467
Blind Spot Assist inope rative ............... 468
Blind Spot Assi stnot available when
to wing a trailer See Owner's Manual ...4 71
Brake immediately ............................... 455
ÂChange key bat teries .................. 486 526
Index

ØCheck
AdBlue See Owne r’s
Manual .................................................4 78
J Check brake fluid le vel................ 455
4Check eng. oil le v.when next
re fuelling ............................................. 475
j Check trailer hit chlock .............. .489
hChe cktyre(s) ............................... 482
!Clean the fuel filter .................... .480
Clutch overheated Avoid pulling away
fo r XX:XX mins .................................... 492
ÉCompressor is cooling ................ 465
?Coolant Stop vehicle Switch
engine off ............................................ 473
Cruise cont rol and Limiter inope ra‐
tive ...................................................... 470
Cruise cont rol inope rative .................... 471
Cruise cont rol off ................................ 470
! currently una vailable See Own‐
er's Manual ........................................ .446 ÷cur
rently una vailable See Own‐
er's Manual ........................................ .448
Depress clutch ful lyto start engine .....4 92
Dis tance Pilot available again .............. 468
Dis tance Pilot cur rently una vailable
See Owner's Manual ...........................469
Dis tance Pilot inope rative .................... 469
È .................................................... 470
Ø Eng.start not possible in XXX
mi ........................................................ 479
Ø Eng.start not possible ................479
5 Engine oil le vel cannot be
measured ............................................ 478
4 Engine oil le velRe duce oil le vel...4 76
4 Engine oil le velSt op vehicle
Switch engine off ................................. 476
4 Engine oil pressure Stop Switch
off engine ............................................ 477
6 Example: Front left malfunction
Consult workshop .............................. 459 bExample: Left dipped beam
........ 499
6Example: Left windowbag mal‐
function Consult workshop ................. 459
Example: Parking Pilot Parking can‐
celled ................................................ .468
_Example: Rear left seat back‐
re st not lo cked ................................... 498
Fr ont-passenger airbag disabled See
Owner's Manual ..................................4 60
Fr ont-passenger airbag enabled See
Owner's Manual ................................... 461
!inoperative See Owner's Man‐
ual .......................................................4 47
÷ inope rative See Owner's Man‐
ual ....................................................... 449
T inope rative See Owner's Man‐
ual ....................................................... 450
GInope rative ................................. .460
bIntelligent Light Sy stem inoper‐
ative ....................................................4 99 Index
527

ÂKe
y not de tected (red displ ay
messa ge).............................................4 87
 Key not de tected (white displ ay
messa ge).............................................4 86
Let fresh air into theve hicle interior!
Air conditioning malf. Visit workshop .. 494
Limiter inoperative .............................. 470
Limiter passive .................................... 469
bMalfunction See Owner's Man‐
ual ....................................................... 500
ÉMalfunction See Owner's Man‐
ual ....................................................... 463
max. speed 22 mph............................. 465
ðMaximum speed exceeded ..........4 70
N permanently active Risk of vehicle
ro lling .................................................. 490
ëOff .............................................. .468
Only select Park (P) when vehicle is
st ationary ............................................ 490 !Pa
rking brake See Owner's
Manual ................................................ 452
Pa rking Pilot and PARKTRONIC inop‐
erative See Owner's Manual ................471
Pa rking Pilot Manoeuvring assis‐
ta nce limited See Owner's Manual ......471
 Place theke y in the mar ked
space See Owner's Manual ................. 487
Please reduce speed ...........................4 65
ÉPlease reduce speed ...................4 64
PRE-SAFE impulse side inoperative
See Owner's Manual ........................... 457
PRE-SAFE inoperative See Owner's
Manual ................................................ 456
Ra dar sensors dirty See Owner's
Manual ................................................ 457
hRe ctify tyre pressure ................... 482
ØRe fill Ad Blue Eng. start not pos‐
sible .................................................... .478 Ø
Refill Ad Blue No start in XXX mi
............................................................ .480
ØRe fill Ad Blue See Owne r’s Man‐
ual .......................................................4 78
! Release parking brake .................451
¸ Replace air cleaner ......................479
, Replace key See Owner's Man‐
ual ...................................................... .486
ÂRe placekey ................................ .485
8Re servefuel le vel........................ 479
6 Restra int sys. malfunction Con‐
sult workshop ...................................... 458
Re versing not poss. Consult work‐
shop ....................................................4 91
Risk of vehicle rolling Driver door
open and transmission not in P ...........490
#See Owner's Manual ....................474
Speed limit (winter tyres) XXX mph..... 470
# Start engine See Owner's Man‐
ual ...................................................... .480 528
Index

ÐSt
eering malfunction Drive
carefully Visit workshop ......................4 94
Ð Steering malfunction Incre ased
ph ysical ef fort See Owner's Manual .... 495
ÐSt eering malfunction See Own‐
er's Manual ......................................... 493
ÐSt eering malfunction Stop
immediately See Owner's Manual .......495
St eering Pilot cur rently una vailable
See Owner's Manual ...........................469
St eering Pilot inoperative .................... 469
St op vehicle Lea veengine running
Wa itTransmission cooling ...................491
# Stop vehicle Lea veengine run‐
ning ..................................................... 475
# Stop vehicle See Owner's Man‐
ual ........................................................ 474
É Stop vehicle Vehicle too low ........ 464
bSwitch off lights .......................... 500
bSwitch on headlamps .................. 500To
shift out of P or N,depress brake
and start engine .................................. 490
To p up coolant See Owner ’sManual ....472
¥ Top up washer fluid .................... .498
Tr af fic Sign Assi stCamera view
re stricted See Owner's Manual ........... 466
Tr af fic Sign Assi stcur rently una vaila‐
ble See Owner's Manual ......................470
Tr af fic Sign Assi stinope rative .............. 471
j Trailer coupling extending… ......... 488
Tr ansmission Malfunction Stop ............ 491
!Tu rnon the ignition torelease
th e parking brake ................................ 450
Ty re press. monitor cur rently una vail‐
able .................................................... .483
Ty re press. monitor inoperative ...........484
Ty re press. monitor inoperative No
wheel sensors .................................... .484
Ty re pressure Check tyres ...................481
Ty re(s) ove rheated ...............................4 84Ty
re(s) ove rheated Reduce speed ........ 485
dVe hicle is operational Switch
off the ignition before exiting .............. .491
É Vehicle rising Please wait............ 462
ÉVe hiclerising ...............................4 62
hWa rning tyre defect .....................483
hWheel sensor(s) missing ............. 484
Wi thout changing gear, consult work‐
shop ....................................................4 90
Dist ance control
see Dis tance Pilot DISTRONIC
Di stance Pil otDISTRONIC ...................... 202
Ac tivating ............................................ 205
Ac tivation conditions ........................... 205
Calling up a speed ............................... 205
Deactivating ........................................ 205
Fu nction .............................................. 202
Le ver ................................................... 205
Selecting ............................................. 205
Setting a speed ................................... 205
St oring a speed ................................... 205
Sy stem limits ....................................... 202 Index
529