Page 625 of 673

Ve
hicle Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
ï Tr ailer tow hit chwarning
lamp The
red trailer tow hit chwarning lamp is on.
*The trailer tow hit chis not operational or is swivelling. &
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. #
Notethe messages on the multifunction displa y.
If th e trailer hitch is swivelling: #
Wait until the ball coupling has reached the operational position.
Ù
Wa rning lamp for electric
po we rst eering The
redwa rning lamp for electric po werst eering is lit while the engine is running.
*The po wer-assis tedsteering 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. 622
Display messages and warning/indicator lamps
Page 626 of 673
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. #
Consult a qualified specialist workshop. #
Notethe messages on the multifunction displa y. Displ
aymessa ges and warning/indicator lamps 623
Page 627 of 673

1,
2, 3 ...
4MATIC ..................................................... 19 3
Fu nction .............................................. 19 3
12 V battery
see Battery (vehicle)
12 V so cket
see Soc ket (12 V)
48 V on-board electrical sy stem
Operating saf ety .................................... 21
230 V soc ket
see Soc ket (230 V)
360° Camera ........................................... 256
Fu nction .............................................. 256
Opening the camera co ver (r eve rsing
camera) .............................................. .260
Selecting a view .................................. 259
Setting favo urites ................................ 260
Swit ching automatic operation
on/off (r eversing camera) .................. .259 A
A/C function Activating/deactivating (multimedia
sy stem) ................................................ 161
Switching on/off (control panel) .......... 161
ABS (Anti-lock Braking Sy stem) ............ .210
Ac celeration
see Kickdown
Ac cess data
Setting (Blue tooth®
) ............................ 443
Ac cident and breakdown manage‐
ment
Mercedes me connect ........................ .437
Ac oustic locking verification signal
Ac tivating/deactivating ......................... 75
Ac tivating/deactivating automatic
vo lume adjustment
Ad vanced sound sy stem ......................4 73
Burmes ter®
sur round sound sy stem ....4 71
Ac tive Blind Spot Assi st.......................... 270
Ac tivating/deactivating ...................... .273
Brake application ................................. 272
Fu nction .............................................. 270Sy
stem limitations ...............................2 70
Tr ailer operation .................................. 272
Ac tive bonn et(pedestrian pr otection) ...4 75
Operation ............................................ 475
Re setting ............................................. 475
Ac tive Brake Assi st
Fu nction/no tes .................................... 216
Setting ................................................. 221
Ac tive Di stance Assist DISTRO NIC........ 228
Ac tive Emergency Stop Assist .............2 38
Ac tive Lane Change Assi st.................. 236
Calling up a speed ............................... 230
Displa ysinthe instrument display .......2 38
Fu nction .............................................. 228
Increasing/decreasing speed .............. 230
Re quirements: .................................... .230
Ro ute-based speed adap tation ........... .233
Selecting ............................................. 230
St eering wheel buttons ....................... 230
St oring a speed ................................... 230
Switching off/deactivating .................. 230
Switching on/activating ......................2 30
Sy stem limitations ...............................2 28
Ac tive Eme rgency Stop Assist ...............238 624
Index
Page 628 of 673

Ac
tive headlamps .................................... 14 4
Ac tive Lane Change Assi st..................... 236
Ac tivating/deactivating ...................... .238
Fu nction .............................................. 236
Ac tive Lane Keeping Assist .................... 273
Ac tivating/deactivating ...................... .275
Ac tivating/deactivating thewa rning .... 275
Fu nction .............................................. 273
Setting the sensitivity .......................... 275
Sy stem limits ....................................... 273
Tr ailer operation .................................. 273
Ac tive Parking Assist .............................. 260
Cross Traf fic Alert ............................... 265
Drive AwayAssi st................................ 264
Exiting a pa rking space ...................... .263
Fu nction .............................................. 260
Manoeuvring assi stance ...................... 266
Pa rking ................................................ 261
Sy stem limitations ...............................2 60
Ac tive Se rvice Sy stem PLUS
see AS SYST PLUS
Ac tive Speed Limit Assi st....................... 232
Display ................................................ 232
Fu nction .............................................. 232 Ac
tive Steering Assist ............................ .234
Ac tivating/deactivating ...................... .236
Ac tive Emergency Stop Assist .............2 38
Ac tive Lane Change Assi st.................. 236
Displa ysinthe instrument display .......2 38
Fu nction .............................................. 234
Sy stem limitations ...............................2 34
Ad aptive brake lights .............................. 222
Ad aptive cruise control
see Active Dis tance Assi stDISTRONIC
Ad aptive functions, MULTIBEAM LED
see Intelligent Light Sy stem
Ad aptive Highbeam Assist
Fu nction .............................................. 14 6
Switching on/off ................................. 147
Ad aptive Highbeam Assist Plus
Fu nction ............................................... 147
Switching on/off ................................. 14 9
Ad Blue ®
.................................................... 544
Ad ditives .............................................5 44
Capacity .............................................. 545
Fill le vel .............................................. .288
No tes ................................................... 197
Purity ................................................... 544Ra
nge ................................................. .288
To pping up ...........................................1 97
Ad ditional door lo ck.................................. 78
Ad ditional value range
Setting display content ........................ 287
Ad diti ves.................................................. 545
Ad Blue ®
............................................... 544
Engine oil ............................................. 545
Fu el ..................................................... 543
Ad diti ves (AdBlue ®
)
see AdBlue ®
Ad diti ves (engine oil)
see Additives
Ad diti ves (fuel)
see Fuel
Ad dress book
see Contacts
Ad justing the balance/ fader
Adva nced sound sy stem ......................4 73
Burmes ter®
sur round sound sy stem ....4 72
Ad justing the sound focus
Burmes ter®
sur round sound sy stem ....4 72 Index
625
Page 629 of 673

Ad
justing treble, mid- range and bass
settings
Adva nced sound sy stem ......................4 73
Burmes ter®
sur round sound sy stem ....4 71
ADS PLUS da mping sy stem
see AIR BODY CONTROL
Ad vanced sound sy stem
Ac tivating/deactivating au tomatic
vo lume adjustment .............................. 473
Ad justing the balance/fader ................4 73
Ad justing treble, mid-range and bass
settings ................................................ 473
Calling up the sound menu .................. 472
Information .......................................... 472
Af ter-sales service centre
see ASS YST PLUS
AIR BODY CONT ROL................................ 24 2
Setting ................................................. 24 4
Suspension .......................................... 24 2
Air conditioning menu Calling up ............................................ .161
Air conditioning sy stem
see Climate control Air distribution
Setting ................................................ .159
Setting (multimedia sy stem) ................1 62
Air freshener sy stem
see Fragrance sy stem
Air inlet see Air-water duct
Air pressure see Tyre pressure
Air suspension see AIR BODY CONTROL
Air vents ................................................... 16 9
Ad justing (front) .................................. 16 9
Ad justing (rear) .................................... 17 0
Air vents
see Air vents
Ai r-re circulation mode ............................ 16 3
Air-water duct .......................................... 482
Ke eping free ........................................4 82
Airbag ........................................................ .40
Ac tivation .............................................. 34
Fr ont airbag (driver, front passenger) ....40
Ins tallation locations ............................ .40Knee airbag ........................................... 40
Overview ............................................... 40
PA SSENGER AIR BAG indicator lamp .... .45
Pr otection ..............................................41
Re duced pr otection ...............................42
Side impact airbag ................................ 40
Wi ndow airbag ....................................... 40
Ai rflow
Setting ................................................ .159
Alarm sy stem
see ATA (anti-theft alarm sy stem)
All-wheel drive see 4MATIC
Alternative route
see Route
Ambiance light Setting (multimedia sy stem) ................1 50
Android Auto ............................................ 431
Connecting a mobile phone ................. 432
Control using the application buttons
.............................................................4 33
Ending ................................................. 433
Information .......................................... 432
Overview .............................................. 431 626
Index
Page 630 of 673

Sound settings .................................... 433
Tr ans ferred vehicle data ......................4 33
Animals Pets in theve hicle ................................. 73
Anti-lock braking sy stem
see ABS (Anti-lock Braking Sy stem)
Anti-skid chains
see Snow chains
Anti-theft ala rmsystem
see ATA (anti-theft alarm sy stem)
Anti-theft pr otection
Ad ditional door lock .............................. 78
Immobiliser .........................................1 00
Anti-theft pr otection
see ATA (anti-theft alarm sy stem)
Anticipatory occupant pr otection
see PRE- SAFE®
(anticipatory occu‐
pant pr otection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
Apple CarPlay ®
........................................4 29
Connecting an iPhone ®
....................... 430 Control using
the application buttons
.............................................................4 31
Ending ................................................. 431
No tes .................................................. 430
Overview ............................................. 429
Sound settings .....................................4 31
Tr ans ferred vehicle data ......................4 33
Ashtr ay
Fr ont centre console ........................... 13 4
Using ................................................... 13 4
Assistance Menu (on-board co mputer) .................. 289
Assistance sy stems
see Driving saf ety sy stem
ASS YST PLUS ............................................ 474
Battery disconnection periods ............. 475
Displ aying the service due date ........... 474
Fu nction/no tes .................................... 474
Re gular maintenance work .................. 474
Special service requirements .............. .474
ATA (anti-theft ala rmsystem) ................ .100
Deactivating the alarm .........................1 01
Fu nction .............................................. 100
Fu nction of interior pr otection .............1 01Priming/deactivating interior pr
otec‐
tion ...................................................... 102
Priming/deactivating tow- aw ay pro‐
te ction ................................................. 101
To w- aw ay protection function .............. 101
AT TENTION ASSI ST.......................... 266, 267
Fu nction .............................................. 266
Setting ................................................. 267
Sy stem limitations ...............................2 66
At tention assistant
see ATTENTION ASSIST
Au gmented reality
see Route guidance with augmented reality
Au thorised workshop
see Qualified specialist workshop
Au tomatic distance control
see Active Dis tance Assi stDISTRONIC
Au tomatic driving lights .........................14 2
Au tomatic engine start (ECO start/
sto p function) ........................................... 181
Au tomatic engine stop (ECO start/
sto p function) ........................................... 181 Index
627
Page 631 of 673

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 .......................................... 43, 45
Fu nction of the automatic front
passenger front airbag deactivation
sy stem ................................................... 43
PA SSENGER AIR BAG indicator lamp .... .45
Au tomatic mir rorfo lding function
Ac tivating/deactivating ...................... .157
Au tomatic seat adjustment
Setting ................................................. 109
Au tomatic transmission
DIRECT SELECT le ver ........................... 188
Drive program display .......................... 187
Drive programs .................................... 186
DY NA MIC SELECT switch .................... 186
Engaging drive position ....................... 19 0
Engaging neutral .................................. 19 0
Engaging pa rkposition ........................ 19 0
Engaging reve rsege ar ........................ .190
Kickdown ............................................. 19 2Manual
gear changing .......................... 191
St eering wheel gearshift paddles ........ .191
Tr ansmission position display .............. 188
Tr ansmission positions ........................ 188
Axle load Perm issible .......................................... 539
Tr ailer operation .................................. 553 B
Bag hook .................................................. 12 6
Ball ne ck
Extending/r etra cting ........................... 276
BA S (Brake Assist Sy stem) .................... .210
Battery Charging (Remo teOnline) .................... 175
Ke y ........................................................ 76
Re mo tecontrol (s tationary heater) ...... 16 8
Battery see Battery (vehicle)
Battery (vehicle) ...................................... 507
Charging .............................................. 506
Charging (Remo teOnline) .................... 175
No tes .................................................. 502 No
tes (s tarting assis tance and
ch arging) ............................................ .504
Re placing .............................................5 07
St arting assis tance .............................. 506
Belt see Seat belt
Bic ycle rack
Tr ailer operation .................................. 279
Blind Spot Assi st..................................... 270
Ac tivating/deactivating ...................... .273
Fu nction .............................................. 270
Sy stem limitations ...............................2 70
Blo wer
see Climate control
BlueTEC see AdBlue ®
Blue tooth ®
............................................... 355
Information .......................................... 355
Setting up an Internet connection ....... 443
Switching on/off ................................. 355
Bonnet Resetting (active bonnet) ..................... 475628
Index
Page 632 of 673

Boot lid
see Tailgate
Brake Assist Sy stem
see BAS (Brake Assi stSystem)
Brake fluid
No tes ................................................... 547
Brake forc e distribution
EBD (Elect ronic Brake forc e Distribu‐
tion) ..................................................... 216
Brakes ABS (Anti-lock Braking Sy stem) ........... 210
Ac tive Brake Assi st.............................. 216
Ad aptive brake lights .......................... .222
BA S (Brake Assi stSystem) ...................2 10
Driving tips ........................................... 176
EBD (Electronic Brake forc e Distribu‐
tion) ..................................................... 216
HOLD function .................................... .240
Limi ted braking ef fect (salt-trea ted
ro ads) .................................................. 176
New/replaced brakepads/brake
discs .................................................... 176
Ru nning-in no tes ..................................1 76Braking assistance
see BAS (Brake Assi stSystem)
Breakdown Overview of the help functions .............. 16
To w- starting ........................................ .512
To wing away ........................................ 508
Tr ansporting theve hicle ....................... 51 0
Wheel change ...................................... 530
Breakdown see Flat tyre
Bu rm ester ®
sur round sound sy stem .....4 71
Ad justing the balance/fader ................4 72
Ad justing the sound focus ................... 472
Ad justing treble, mid-range and bass
settings ................................................ 471
Au tomatic volume adjustment ............ .471
Calling up the sound menu .................. 471
Information ..........................................4 71
Selecting the sound profile .................. 472
Buttons Steering wheel .................................... 284 C
Call list Deleting ............................................... 422
Making a call ....................................... 421
Overview ..............................................4 21
Selecting options ................................. 421
Selecting options for suggestions ........ 422
Calling up the sound menu
Adva nced sound sy stem ......................4 72
Burmes ter®
sur round sound sy stem ....4 71
Calls .......................................................... 416
Ac cepting ............................................. 416
Ac tivating functions du ring a call ......... 417
Calls with se veral participants ............ .417
Declining .............................................. 416
Ending a call ........................................ 416
Incoming call during an existing call .... 417
Making .................................................4 16
Mercedes me ...................................... 434
Camera see 360° Camera
see Reversing camera
Car key
see Key Index
629