
Ve
hicle Display messages
Possible causes/consequences and M
MSolutions
j Trailer coupling extending… *Y
ouretract or extend the ball nec k.
Do not attem pttospeed up, slow down or initiate there tracting or extending process using your hand, foot or other
aids. During there tracting or extending process, do not couple a traile r.
When the ball neck has reached an operational position, the display message disappears. 488
Display messages and warning/indicator lamps 

Display messages
Possible causes/consequences and M
MSolutions
j Check trailer hitch lock *T
he trailer hitch is not operational. &
WARNING Risk of an accident if the ball neck is not loc ked
If th e ball neck is not in the loc ked position, the trailer may come loose. #
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. #
Uncouple the trailer and secure it against rolling away. #
Initiate a new swivelling procedure and do not re-couple the trailer until the display message disappears. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. #
Uncouple the trailer and safeguard it against rolling away. #
Initiate a new swivelling procedure . #
When the display message disappears, couple up the trailer and drive on.
If th e display message does not disappear, the trailer hitch is defective and the ball neck is not loc ked. #
Do not couple up the trailer. Drive on without the trailer. Pay attention tothere duced ground clearance due to
th e unloc ked ball nec k. #
Consult a qualified specialist workshop.
Apply brake to deselect
Park (P) position *
Yo u ha veattem ptedto shift the transmission out of position jand into ano ther transmission position. #
Depress the brake pedal. Display messages and
warning/indicator lamps 489 

Display messages
Possible causes/consequences and M
MSolutions
b Malfunction See Owner's
Manual *T
heexterior lighting is faulty. #
Consult a qualified specialist workshop.
Ve hicles with a trailer hitch: a fuse may haveblown. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions. #
Check the fuses and replace them if necessary .
b AUTO lights inoperative *T
he light sensor is faulty. #
Consult a qualified specialist workshop.
b Switch off lights *Y
ou are leaving theve hicle and the lights are still switched on. #
Turn the light switch totheà position.
b Switch on headlamps *Y
ou are driving without dipped-beam headlamps. #
Turn the light switch totheL orà position.
Adaptive Highbeam Assist
Plus inoperative *A
daptive Highbeam Assist Plus is faulty. #
Consult a qualified specialist workshop. 500
Display messages and warning/indicator lamps 

Ve
hicle Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
j Tr ailer hit chwarning lamp The
red trailer hitch warning lamp is on.
The trailer hitch is not operational or swivels. &
WARNING Risk of an accident if the ball neck is not loc ked
If th e ball neck is not in the loc ked position, the trailer may come loose. #
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. #
Uncouple the trailer and secure it against rolling away. #
Initiate a new swivelling procedure and do not re-couple the trailer until the display message disappears. #
Obser vethe messages in the multifunction displa y.
If th e trailer hitch swivels: #
Wait until the ball neck has reached the operational position. Display messages and
warning/indicator lamps 511 

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 

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 

Distance
recorder .................................. .259
DISTRO NIC
see Dis tance Pilot DISTRONIC
Door Additional door lock .............................. 68
Locking (emer gency key) ...................... .72
Opening (from inside) ............................68
Un locking (emer gency key) .................... 72
Un locking (from inside) ........................ .68
Door see Locking/unlocking
Door cont rol panel .................................... .16
Drive Away Assist .................................... 236
DRIVE PIL OT............................................. 209
Fu nction .............................................. 209
Drive position Selecting .............................................. 173
Drive prog ram display ............................. 16 9
Drive prog rams ........................................ 16 8
Driver's seat see Seat Driving abroad
Symmetrical dipped beam .................. .131
Driving light see Automatic driving lights
Driving saf ety sy stem ............................ .188
ABS (Anti-lock Braking Sy stem) ........... 189
Ac tive Brake Assi st.............................. 194
Ad aptive brake lights .......................... .199
BA S (Brake Assi stSystem) .................. 189
EBD (Electronic Brake forc e Distribu‐
tion) ..................................................... 19 3
ESP ®
(Electronic Stability Prog ram)
Crosswind Assist ................................. 19 3
ESP ®
(Electronic Stability Prog ram)
trailer stabilisation .............................. .193
Overview ............................................. 188
Ra dar sensors .....................................1 88
Re sponsibility ...................................... 188
Driving saf ety sy stem
see ESP ®
(Elect ronic Stability Prog ram)
Driving sy stem
DY NA MIC BODY CONTROL .................. 214
Driving sy stem
see 360° Camera see
Active Blind Spot Assi st
see Active Lane Keeping Assist
see AIR BODY CONTROL
see ATTENTION ASSIST
see Blind Spot Assist
see Cruise control
see Dis tance Pilot DISTRONIC
see DRIVE PIL OT
see Driving saf ety sy stem
see HOLD function
see Limiter
see Parking Assist PARKTRONIC
see Parking Pilot
see Remo teParking Pilot
see Reversing camera
see Speed Limit Pilot
see Steering Pilot
see Traf fic Sign Assi st
Driving tips Driving abroad (symmetrical dipped
beam) .................................................. 131
Gene ral driving tips ............................ .164
Ru nning-in no tes ..................................1 64
Dr ow siness de tection
see ATTENTION ASSIST 530
Index