
Display messages
Possible causes/consequences and M
MSolutions
Ð Steering malfunction
Increased physical effort
See Owner's Manual *T
he po wer assi stance forth esteering is malfunctioning. &
WARNING Risk of an accident due toaltered steering characteristics
If th e po wer assi stance of thesteering fails partially or comple tely, you will need touse more forc eto steer. #
If safe steering is possible, drive on carefully. #
Visit or consult a qualified specialist workshop immediatel y. #
If safe steering is possible, drive on carefully. #
Visit or consult a qualified specialist workshop immediatel y.
&
inoperative Battery low *T
he on-board electrical sy stem voltage is too lo w.
The stationary heater has swit ched itself off. #
Drive for an extended pe riod until the battery has reached a suf ficient charge leve l again.
&
inoperative Refuel vehicle *T
here is too little fuel in the fuel tank. The stationary heater cannot be swit ched on. #
Refuel theve hicle.
Active bonnet malfunction
See Owner's Manual *T
he active bonnet (pedestrian pr otection) is malfunctioning or inoperative af ter having already been triggered. #
Consult a qualified specialist workshop. 432
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions #
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. #
Obser vethe messages on the multifunction displa y. #
Consult a qualified specialist workshop.
! ABS warning lamp The
yellow ABS warning lamp is lit while the engine is running.
ABS is malfunctioning.
If th ere is an additional acoustic warning signal, EBD is malfunctioning.
Other driving sy stems and driving saf ety sy stems may also be faulty. &
WARNING Thereisrisk of skidding if EBD or ABS is malfunctioning
If EBD or ABS is malfunctioning, the wheels could lock when braking
The steering capability and braking characteristics are thus se verely impaired. The braking dis tance may increase in
an emergency braking situation. In addition, 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. #
Drive on carefully. #
Obser vethe messages in the multifunction displa y. #
Consult a qualified specialist workshop. 442
Displaymessa ges and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
Ð Po we rst eering sy stem
wa rning lamp The
red po werst eering sy stem warning lamp is lit while the engine is running.
The po werst eering assis tance or thesteering itself is malfunctioning. &
WARNING Risk of accident if steering capability is impaired
If th esteering does not function as intended, theve hicle's operating saf ety is jeopardised. #
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. #
Obser vethe messages in the multifunction displa y.450
Display messages and warning/indicator lamps

Ty
res Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
h Ty re pressure monitoring
sy stem warning lamp lights
up The
yellow tyre pressure monitoring sy stem warning lamp (pressure loss/malfunction) is lit.
The tyre pressure monitoring sy stem has de tected tyre pressure loss in at least one of the tyres. &
WARNING Risk of an accident due toinsuf ficient tyre pressure
Ty res with insuf ficient tyre pressure pose thefo llowing risks:
R The tyres may bur st, especially as the load and vehicle speed increase.
R The tyres may wearexc essively and/or une venly, which may greatly impair tyre traction.
R ‑ The driving characteristics, steering 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, paying attention toroad and traf fic conditions. #
Check the tyre pressure and the tyres. 454
Display messages and warning/indicator lamps

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
h Ty re pressure monitoring
sy stem warning lamp
fl ashes The
yellow tyre pressure monitoring sy stem warning lamp (pressure loss/malfunction) flashes for appro ximately one
minute and then remains lit.
The tyre pressu remonitoring sy stem is faulty. &
WARNING Thereis a risk of an accident if the tyre pressure monitoring sy stem is malfunctioning
If th e tyre pressure monitoring sy stem is malfunctioning, it is not able toissue a warning if there is pressure loss in
one or more of the tyres.
Ty res with insuf ficient tyre pressure ma y,forex ample, af fect theve hicle's handling characteristics, steering and
braking. ‑ #
Have the tyre pressure monitoring sy stem checked at a qualified specialist workshop. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 455

1,
2, 3 ...
12 V so cket
see Soc ket (12 V)
230 V so cket
see Soc ket (230 V)
360° Camera ........................................... 223
Ca re ..................................................... 317
Fu nction .............................................. 223
Selecting a view .................................. 226 A
A/C function Activating/deactivating (control
panel) .................................................. 14 9
Ac tivating/deactivating (multimedia
sy stem) ................................................ 14 9
ABS (Anti-lock Braking Sy stem) ............ .191
Ac celeration
see Kickdown
Ac cess data
Editing ................................................ .294
Setting ................................................. 293 Ac
oustic locking verification signal
Swit ching on/off .................................. .68
Ac tive Blind Spot Assi st......................... 239
Ac tivating/deactivating ...................... .241
Brake application ................................. 239
Fu nction .............................................. 239
Sy stem limitations ...............................2 39
Tr ailer operation .................................. 239
Ac tive bonn et(pedestrian pr otection) .. 307
Operation ............................................ 307
Re setting ............................................. 307
Ac tive Brake Assi st
Fu nction/no tes ................................... 19 6
Setting ................................................. 201
Ac tive Di stance Assist DISTRO NIC........ 205
Calling up a speed ............................... 207
Fu nction .............................................. 205
Increasing/decreasing speed .............. 207
Le ver ................................................... 207
Re quirements: .................................... .207
Selecting ............................................. 207
St oring a speed ................................... 207
Switching off/deactivating .................. 207
Switching on/activating ......................2 07Sy
stem limitations ...............................2 05
Ac tive headlamps function .....................131
Ac tive Lane Keeping Assist .....................241
Ac tivating/deactivating ...................... .243
Fu nction ............................................... 241
Sensitivity (function/no tes) ................. 24 4
Setting the sensitivity .......................... 24 4
Sy stem limitations ...............................2 41
Ac tive Parking Assist .............................. 226
Cross Traf fic Alert ............................... 237
Drive AwayAssi st................................ 236
Exiting a pa rking space ...................... .230
Fu nction .............................................. 226
Pa rking ................................................ 228
Sy stem limitations ...............................2 26
Ac tive Steering Assist ............................ .210
Ac tivating/deactivating ........................ 211
Fu nction ............................................... 210
Sy stem limitations ...............................2 10
Ad aptive brake lights .............................. 201
Ad aptive cruise control
see Active Dis tance Assi stDISTRONIC 456
Index

Boot box
see EAS Y-PA CK boot box
Boot lid Activating/deactivating the boot lid
opening limiter ....................................... 81
Closing .................................................. 77
HANDS-FREE ACCESS .......................... .79
Locking separa tely ................................. 81
Opening .................................................76
Opening dimensions ............................3 76
Brake Assi stSystem
see BAS (Brake Assi stSystem)
Brake fluid
No tes ................................................... 374
Brake forc e distribution
EBD (Elect ronic Brake forc e Distribu‐
tion) ..................................................... 19 6
Brakes ABS (Anti-lock Braking Sy stem) ........... 191
Ac tive Brake Assi st.............................. 19 6
Ad aptive brake lights .......................... .201
BA S (Brake Assi stSystem) ...................1 91
Driving tips .......................................... 16 4EBD (Electronic Brake
forc e Distribu‐
tion) ..................................................... 19 6
HOLD function .................................... .212
Limited braking ef fect (salt-trea ted
ro ads) .................................................. 16 4
New/replaced brake linings/brake
discs .................................................... 16 4
Ru nning-in no tes ..................................1 64
Braking assistance see BAS (Brake Assi stSystem)
Breakdown Assis tance overview .............................. 18
To w- starting ........................................ 340
To wing away ........................................ 336
Tr ansporting theve hicle ......................3 38
Wheel change ...................................... 357
Breakdown see Flat tyre
Breakdown assistance call see Service call
Breakdown management see Service call
Bu rm ester ®
sur round sound sy stem .....3 05
Ad justing the balance/fader ............... 305 Ad
justing the sound optimisation ........ 305
Ad justing treble, mid and bass ............ 305
Calling up the sound menu .................. 305
Information .......................................... 305
Switching the sur round sound on/off
............................................................ .305
Buttons Steering wheel .................................... 252 C
Call lists Calling up the speed dial list ............... 285
Deleting speed dial presets ................. 285
Displaying de tails from a list ent ry...... 285
Making a call ....................................... 285
Overview ............................................. 285
Setting up a speed dial li st.................. 285
Calling up the sound menu Burmes ter®
sur round sound sy stem ... 305
Calls ..........................................................2 82
Ac cepting ............................................ 282
Ac tivating functions du ring a call ........ 282
Calls wi thseveral participants ............ .282
Declining ............................................. 282 460
Index

Setting
for abroad ................................ 127
DIRECT SELECT le ver............................... 172
Engaging drive position ........................ 173
Engaging pa rkposition automatically .. 173
Engaging reve rsege ar ........................ .173
Fu nction ............................................... 172
Selecting pa rkposition ........................ 173
Shifting toneutral ................................ 173
Display Care .................................................... .319
Display (multimedia sy stem)
No tes ................................................... 264
Settings ............................................... 273
Switching off ....................................... 273
Display (on-boa rdcompu ter)
Displ ays in the multifunction display ... 255
Display content (Additional value range) ....................... 254
Displ aymessage ...................................... 381
Calling up (on-board compu ter) ........... 381
No tes ................................................... 381
Display messages ? ................................................... 41 5C
................................................... 433
M ................................................... 433
N ................................................... 434
# .................................................... 408
¯ .................................................... 405
Ac tive Blind Spot Assi stcur rently
una vailable See Owner's Manual .........403
Ac tive Blind Spot Assi stinope rative .... 403
Ac tive Blind Spot Assi stnot available
when towing a trailer See Owner's
Manual ................................................ 403
Ac tive bonnet malfunction See Own‐
er's Manual ......................................... 432
Ac tive Brake Assi stFunctions cur‐
re ntly limited See Owner's Manual ...... 393
Ac tive Brake Assi stFunctions limited
See Owner's Manual ........................... 394
Ac tive Dis tance Assi stavailable
again .................................................. .404 Ac
tive Dis tance Assi stcur rently
una vailable See Owner's Manual .........404
Ac tive Dis tance Assi stinope rative ...... 404
Ac tive Lane Keeping Assist Camera
view restricted See Owner's Manual ... 402
Ac tive Lane Keeping Assist cur rently
una vailable See Owner's Manual .........401
Ac tive Lane Keeping Assist inopera‐
tive ...................................................... 401
b Active Light Sy stem inopera‐
tive ...................................................... 435
Ac tive Parking Assist and
PA RKTRONIC inoperati veSee Own‐
er's Manual ......................................... 404
è Active Steering Assist cur rently
una vailable See Owner's Manual .........405
è Active Steering Assist inopera‐
tive ...................................................... 405
Ad aptive Highbeam Assist Camera
view restricted See Owner's Manual ... 438464
Index