
Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
6 Re stra int sy stem warning
lamp The
redre stra int sy stem warning lamp is lit while the engine is running.
The restra int sy stem is malfunctioning. &
WARNING Risk of inju ryor fata l injury due toa malfunction in there stra int sy stem
If th ere stra int sy stem is malfunctioning, restra int sy stem components may be triggered unintentionally or might not
be triggered at all in theeve nt of an accident. This may af fect the seat belt tensioner or airbag, forex ample. #
Have there stra int sy stem checked and repaired immediately at a qualified specialist workshop. #
Drive on carefully. #
Obser vethe messages in the multifunction displa y. #
Consult a qualified specialist workshop immediatel y. Seat belt
Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
7 Seat belt warning lamp
lights up The
red seat belt warning lamp lights up af terst arting the engine.
In addition, an acoustic warning tone may sound.
The seat belt warning lamp reminds the driver and front passenger tofast entheir seat belts. #
Fasten your seat belt .
If yo u ha veplaced objects on the front passenger seat, thewa rning lamp may remain lit. Display messa
ges and warning/indicator lamps 509

Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
7 Seat belt warning lamp
fl ashes The
red seat belt warning lamp flashes and an intermit tent wa rning tone sounds.
The driver or front passenger has not fastened their seat belt while theve hicle is in motion. #
Fasten your seat belt .
There are objects on the front passenger seat. #
Remo vethe objects from the front passenger seat. Driving sy
stems Wa
rning/indicator lamp
Possible causes/consequences and M
MSolutions
· Dis tance warning warning
lamp The
red dis tancewarning lamp lights up while theve hicle is in motion.
The dis tance totheve hicle in front is too small forth e speed selected.
If th ere is an additional warning tone, you are approaching an obs tacle at too high a speed. #
Be prepared tobrake immediatel y. #
Increase the dis tance.
Ac tive Brake Assi st .51 0
Displaymessa ges 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. 516
Displaymessa ges and warning/indicator lamps

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

Ad
diti ves (fuel)
see Fuel
Ad dress book
see Contacts
Ad justing the balance/ fader
Burmes ter®
sur round sound sy stem ....3 71
Ad justing the headlamp range ............... 13 2
Ad justing the sound focus
Burmes ter®
sur round sound sy stem ....3 71
ADS PLUS da mping sy stem
see AIR BODY CONTROL
Ad versewe ather light ............................ .136
Af ter-sales service centre
see ASS YST PLUS
AIR BODY CONT ROL................................ .214
Setting ................................................. 216
Suspension .......................................... 214
Air conditioning sy stem
see Climate control
Air distribution ........................................ 14 9
Air freshener sy stem
see Frag rance sy stem Air suspension
see AIR BODY CONTROL
Air vents ................................................... 15 9
Ad justing (front) .................................. 15 9
Ad justing (rear) .................................... 15 9
Glo vebox .............................................1 59
Air vents
see Air vents
Ai r-re circulation mode ............................ 15 2
Airbag Activation .............................................. 31
Fr ont airbag ...........................................36
Ins tallation locations ............................ .36
Knee airbag ........................................... 36
Overview ............................................... 36
Pr otection ..............................................37
Re duced pr otection ...............................38
Side impact airbag ................................ 36
Wi ndow airbag ....................................... 36
Airbags see Occupant sa fety
Ai rflow ...................................................... 14 9
AIRPANEL (Care) ...................................... 383 Alarm
see Panic alarm
Alarm sy stem
see Anti- theft pr otection
Alternative route
see Route
Ambient lighting ...................................... 13 8
Android Auto ............................................ 338
Connecting a mobile phone ................. 338
Ending ................................................. 338
Overview ............................................. 338
To ne settings ....................................... 338
Android Auto™
Tr ans ferred vehicle data ......................3 39
Animals Pets in theve hicle ................................. 63
Anti-lock braking sy stem
see ABS (Anti-lock Braking Sy stem)
Anti-theft alarm sy stem
Anti- theft pr otection .............................. 88
Anti-theft pr otection ................................ .88
Ad ditional door lock .............................. 68
ATA (anti-theft alarm sy stem) ................88 Index
519

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

Selecting pa
rkposition ........................ 172
Shifting toneutral ................................ 172
St eering wheel gearshift paddles ........ .173
Tr ansmission position display .............. 171
Tr ansmission positions ........................ 171
Au tomatic transmission
see Selector le ver
Axle load Perm issible .......................................... 431
Tr ailer operation .................................. 443B
Bag hook ................................................... 11 8
Ball ne ck
Extending/r etra cting ........................... 24 8
BA S (Brake Assist Sy stem) .................... .189
Battery Key ........................................................ 66
Re mo tecontrol (s tationary heater) ...... 157
Battery (vehicle) Charging .............................................. 398
Notes .................................................. 396
St arting assis tance .............................. 398 Battery (vehicle)
see Vehicle battery
Belt .............................................................32
Bic ycle rack
Tr ailer operation .................................. 251
Blind Spot Assist .................................... .242
Ac tivating/deactivating ...................... .244
Fu nction/no tes ................................... 24 2
Sy stem limits ....................................... 24 2
Blind Spot Assi st
see Active Blind Spot Assi st
Blo wer
see Climate control
BlueTEC see AdBlue ®
Blue tooth ®
Ac tivating/deactivating ...................... .288
Setting up an Internet connection ....... 340
Settings ............................................... 287
Switching profile (DUN/PAN) .............. 342
Blue tooth ®
Au dio
Ac tivating ............................................ 359 De-authorising (de-regis
tering) the
device .................................................. 359
Information .......................................... 356
Overview .............................................3 57
Sea rching for and auth orisingthe
device .................................................. 358
Switching device via NFC .................... 359
Boot lid see Tailgate
Boot load .................................................. 442
Brake Assi stSystem
see BAS (Brake Assi stSystem)
Brake fluid Notes .................................................. 439
Brake forc e distribution
EBD (Elect ronic Brake forc e Distribu‐
tion) ..................................................... 19 3
Brakes ABS (Anti-lo ckBraking Sy stem) ........... 189
Ad aptive brake lights .......................... .199
BA S (Brake Assi stSystem) .................. 189
Driving tips .......................................... 16 4
EBD (Electronic Brake forc e Distribu‐
tion) ..................................................... 19 3 Index
521

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
Brakes see Active Brake Assi st
Braking assistance see BAS (Brake Assi stSystem)
Breakdown ............................................... 390
Assis tance overview .............................. 18
To w- starting ........................................ 405
To wing away ........................................ 401
Tr ansporting theve hicle ......................4 03
Wheel change ...................................... 422
Breakdown assistance call see Service call
Breakdown management see Service call
Bu rm ester ®
sur round sound sy stem .....3 70
Ad justing the balance/fader ................3 71
Ad justing the sound focus ................... 371
Ad justing treble, mid and bass ............ 371Calling up
the sound menu .................. 370
Information .......................................... 370
Switching the sur round sound on/off
............................................................ .371
Buttons Steering wheel .................................... 255 C
CA module (TV) ........................................ 370
Calling up a menu ................................ 370
Inserting .............................................. 369
Call list Making a call ....................................... 324
Options in the call list .......................... 324
Overview ............................................. 324
Calling up the sound menu
Burmes ter®
sur round sound sy stem ... 370
Calls .......................................................... 321
Ac cepting ............................................ 321
Ac tivating functions du ring a call ......... 321
Calls wi thseveral participants ............ .321
Declining ............................................. 321
Ending a call ....................................... .321
Incoming call during an existing call .... 322 Making ................................................
.321
Vi ath eove rhead control panel
(Mercedes me connect) ....................... 327
Camera see 360° Camera
see Reversing camera
Car wash
see Care
Car wash (care) ....................................... 380
Care ..........................................................3 85
AIRPANEL ............................................ 383
Car wash ............................................. 380
Carpet .................................................3 85
Displ ay................................................ 385
Exterior lighting ................................... 383
Genuine wood/trim elements .............3 85
High-p ressure cleaner .........................3 80
Matt finish ........................................... 382
Pa int .................................................... 382
Plastic trim .......................................... 385
Re versing camera/360° Camera ........ 383
Ro of lining ...........................................3 85
Seat belt .............................................. 385
Seat co ver ........................................... 385 522
Index