
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 faulty (→ page31). &
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 on 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
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(→ page 36).
There are objects on the front passenger seat. #
Remo vethe objects from the front passenger seat. Display messages and
warning/indicator lamps 537

Ad
justing the sound optimisation
Burmes ter®
high-end 3D sur round
sound sy stem ...................................... 399
Ad justing treble, mid- range and bass
settings
Burmes ter®
high-end 3D sur round
sound sy stem ...................................... 399
Burmes ter®
sur round sound sy stem ... 398
ADS PLUS damping sy stem
see AIR BODY CONTROL
Ad versewe ather light ............................ .133
Af ter-sales service centre
see ASS YST PLUS
AIR BODY CONT ROL................................ .218
Setting ................................................. 220
Suspension .......................................... 218
Air conditioning sy stem
see Climate control
Air distribution Setting ................................................ .145
Air freshener sy stem
see Frag rance sy stem Air inlet
see Air-water duct
Air pressure see Tyre pressure
Air suspension see AIR BODY CONTROL
Air vents ................................................... 15 5
Ad justing (front) .................................. 15 5
Ad justing (rear) .................................... 15 5
Ad justing the AIRSCARF vents ............. 15 6
Glo vebox .............................................1 56
Air vents
see Air vents
Ai r-re circulation mode ............................ 14 8
Air-water duct .......................................... 408
Ke eping free ........................................4 08
Airbag ........................................................ .38
Ac tivation .............................................. 31
Fr ont airbag (driver, front passenger) ....38
Ins tallation locations ............................ .38
Knee airbag ........................................... 38
Overview ............................................... 38
PA SSENGER AIR BAG indicator lamp .... .42Pr
otection ..............................................38
Re duced pr otection ...............................40
Side impact airbag ................................ 38
Wi ndow airbag ....................................... 38
Ai rflow
Setting ................................................ .145
AIRSCARF Adjusting the outlets ........................... 15 6
Switching on/off ................................. 108
Alarm see Panic alarm
Alarm sy stem
see ATA (anti-theft alarm sy stem)
All-wheel drive see 4MATIC
Alternative route
see Route
Ambient lighting Setting (multimedia sy stem) ................1 35
Android Auto ............................................ 356
Connecting a mobile phone ................. 356
Ending ................................................. 357
Information .......................................... 356 Index
547

Au
tomatic distance control
see Active Dis tance Assi stDISTRONIC
Au tomatic driving lights .........................12 9
Au tomatic engine start (ECO start/
sto p function) .......................................... 16 5
Au tomatic engine stop (ECO start/
sto p function) .......................................... 16 5
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 .......................................... 40, 42
Fu nction of the automatic front
passenger front airbag deactivation
sy stem ................................................... 40
PA SSENGER AIR BAG indicator lamp .... .42
Au tomatic mir rorfo lding function
Ac tivating/deactivating ...................... .142
Au tomatic transmission
DIRECT SELECT le ver ........................... 171
Drive program display .......................... 17 0
Drive programs .................................... 16 9DY
NA MIC SELECT switch .................... 16 9
Engaging drive position ........................ 172
Engaging neutral .................................. 172
Engaging pa rkposition ........................ 172
Engaging reve rsege ar ........................ .172
Kickdown ............................................. 174
Manual gear changing .......................... 173
St eering wheel gearshift paddles ........ .173
Tr ansmission position display .............. 171
Tr ansmission positions ........................ 171
Axle load Perm issible .......................................... 463
Tr ailer operation .................................. 477 B
Bag hook ................................................... 11 8
Ball ne ck
Fo lding out/in .................................... .254
BA S (Brake Assist Sy stem) .................... .191
Battery Charging (Remo teOnline) .................... 16 2
Ke y ........................................................ 73
Re mo tecontrol (s tationary heater) ...... 15 3Battery
see Battery (vehicle)
Battery (vehicle) ...................................... 431
Charging .............................................. 430
Charging (Remo teOnline) .................... 16 2
No tes .................................................. 426
No tes (s tarting assis tance and
ch arging) ............................................ .428
Re placing .............................................4 31
St arting assis tance .............................. 430
Belt see Seat belt
Bic ycle rack
Tr ailer operation .................................. 257
Blind Spot Assist .................................... .247
Ac tivating/deactivating ...................... .250
Fu nction .............................................. 247
Sy stem limitations ...............................2 47
Blo wer
see Climate control
BlueTEC see AdBlue ® Index
549

Chassis le
vel (AIR BODY CONT ROL)
Setting ................................................ .220
Child saf ety lock
Ac tivating/deactivating (multimedia
sy stem) ............................................... 304
Re ar side wind ows................................. 69
Child seat Appr oval categories .............................. .54
At tach ing (no tes) ................................... 53
Basic instructions ..................................46
Fr ont passenger seat (no tes) ................. 67
Fr ont passenger seat (without auto‐
matic airbag shutoff) ............................. 66
ISOFIX/i-Size (fitting) ............................59
No tes on risks and dangers ...................47
Re commended child restra int sys‐
te ms ...................................................... 50
Seats suita blefor belt-secu redch ild
re stra int sy stems ................................... 63
Seats suitable for i‑Size child
re stra int sy stems ................................... 58
Seats suitable for ISOFIX child
re stra int sy stems ................................... 56
Securing on the front passenger seat ....68
Secu ring on there ar seat ...................... 65 To
pTe ther ..............................................61
Child ren
Av oiding dangers in theve hicle .............47
Basic instructions .................................. 46
Cho ck....................................................... 453
St orage location ..................................4 53
Cho ck
see Chock
CI+ module ..............................................3 96
Calling up a menu ................................ 396
CI+ module (TV) Inserting a Smart Card ........................ 396
Cigar ette lighter
Fr ont centre console ........................... 12 3
City lighting ............................................ .133
Cleaning see Care
Climate control ........................................ 14 5
Ac tivating/deactivating the A/C
function (cont rol panel) ...................... .147
Ac tivating/deactivating the A/C
function (multimedia sy stem) .............. 147Ac
tivating/deactivating the synchro‐
nisation function (cont rol panel) .......... 14 8
Ac tivating/deactivating the synchro‐
nisation function (multimedia sys‐
te m) ..................................................... 14 8
Air di stribution settings .......................1 47
Air-reci rculation mode ........................ .148
Au tomatic control ................................ 147
Climate style function .......................... 147
Defrosting the windscreen ...................1 45
Demisting wind ows............................. 14 8
Fr ont air vents ..................................... 15 5
Glo vebox air vent ................................ 15 6
Inserting/removing theflacon (fra‐
gr ance sy stem) .................................... 14 9
Ionisation ............................................. 14 8
No te .................................................... 14 5
Re ar air vents ...................................... 15 5
Re ar operating unit .............................. 14 5
Re sidual heat ....................................... 14 8
Sets the air flow ................................... 14 5
Setting the air distribution ...................1 45
Setting the climate style ......................1 47
Setting the fragrance sy stem ............... 14 9
Setting thete mp erature ......................1 45
St ationary heater/ ventilation .............. 15 0552
Index

4Engine oil le
velSt op vehicle
Switch engine off ................................ 508
4Engine oil pressure Stop Switch
off engine ............................................ 509
6Example: Left windowbag mal‐
function Consult workshop ................. 487
Fa ult Drive at max. 80 km/h ...............497
6 Front left malfunction Consult
wo rkshop (Example) ............................4 91
_ Front left seat backrest not
loc ked (Example) .................................5 22
Fr ont-passenger airbag disabled See
Owner's Manual ..................................4 89
Fr ont-passenger airbag enabled See
Owner's Manual ..................................4 88
b Hazard warning lamps mal‐
functioning .......................................... 529
&inoperative Bat tery low .............. .527
& inope rative Refuel vehicle ........... 527
&inoperative See Owner's Man. ....527 !
inope rative See Owner's Man‐
ual ....................................................... 486
÷inoperati veSee Owner's Man‐
ual ....................................................... 486
Tinoperati veSee Owner's Man‐
ual ....................................................... 483
GInoperati ve.................................. 490
bIntelli gent Light Sy stem inoper‐
ative ....................................................5 28
ÁKe y not de tected (red displ ay
messa ge).............................................5 19
Á Key not de tected (white dis‐
pl ay messa ge).....................................5 20
bLeft dipped beam (Example) ....... 528
6Left wind owbag malfunction
Consult workshop (Example) ............... 487
Let fresh air into theve hicle interior!
Air conditioning malf. Visit workshop .. 526
Limiter inoperative .............................. 500
Limiter passive .................................... 501 ¢
Lowe ring .................................... 498
bMalfunction See Owner's Man‐
ual ....................................................... 529
ðMaximum speed exceeded ..........5 01
Mercedes me connect Services limi‐
te d See Owner's Manual .....................490
Mo tor can be star ted again .................5 05
N permanently active Risk of vehicle
ro lling .................................................. .513
ç Off............................................... 499
ëOff ............................................... 496
Only select Park (P) when vehicle is
st ationary ............................................ .514
ï Operation only possible in
transmission position N ....................... 522
ïOperation only possible in
transmission position P ....................... 522
!Pa rking brake See Owner's
Manual ................................................ 480 Index
557

ESP
®
Crosswind Assist ................................ .195
Tr ailer stabilisation .............................. 19 5
ESP ®
(Electronic Stability Prog ram) ....... 191
Ac tivating/deactivating ...................... .195
Fu nction/no tes .................................... 191
EU general operating permit number ....463
Exterior lighting Care ..................................................... 414
Exterior lighting see Lights
External device Locking (child saf ety lock) .................. .304 F
Fa tigue de tection
see ATTENTION ASSIST
Fa ult message
see Displ aymessa ge
Favo urites
Ad ding .................................................2 94
Calling up ............................................ 293
Deleting .............................................. .294 Moving ................................................ 294
Overview ............................................. 293
Re naming ............................................ 294
Fi ll le vel
Ad Blue ®
............................................... 265
Fi lling station sear ch
St arting automatic sear ch.................... 316
Switching au tomatic sear chon/off ..... 322
Using automatic sear ch....................... 322
Fi re extinguisher ..................................... 420
Firs t-aid kit (soft sided) ...........................419
Flacon Inserting/removing ............................ .149
Flat towing
see Tow- bar sy stem
Flat tyre ....................................................4 20
MOExtended tyres ............................... 421
No tes .................................................. 420
TIREFIT kit ...........................................4 22
Wheel change ...................................... 453
Floor mats ................................................ 12 6
Fo g light (extended range) ......................1 32Fo
il co vering
Ra dar sensors ...................................... 19 0
Fr ag rance
see Frag rance sy stem
Fr ag rance sy stem .................................... 14 9
Inserting/removing theflacon ............ .149
Setting ................................................. 14 9
Fr ee software ............................................ 29
Fr equencies
Tw o-w ayradio ...................................... 462
Fr equency band
Dialling (on-board computer) .............. .269
Fr ont airbag (driver, front passenger) .....38
Fr ont passenger seat
see Seat
Fu el .......................................................... .468
Ad ditives .............................................4 68
Diesel ................................................. .468
E10 ...................................................... 467
Fu elreser ve ........................................ 469
Low outside temp eratures ...................4 68
Pe trol ................................................... 467
Quality (diesel) .................................... 468 562
Index

Knee airbag
................................................ 38L
Lamp see In terior lighting
Lamps (instrument display) see Warning/indicator lamps
Lane de tection (au tomatic)
see Active Lane Keeping Assist
Lane Keeping Assist
see Active Lane Keeping Assist
Language .................................................3 04
No tes .................................................. 304
Setting .................................................3 04
LED light see Intelligent Light Sy stem
Le vel control sy stem
see AIR BODY CONTROL
Light switch Overview .............................................1 28
Lighting see Interior lighting
see Lights Lights
........................................................ 12 8
Ac tive headla mps ................................ 131
Ad aptive Highbeam Assist Plus .......... .133
Ad justing the instrument lighting ........ 265
Ad versewe ather light .......................... 13 3
Au tomatic driving lights ....................... 12 9
City lighting ........................................ .133
Combination switch ............................ .130
Cornering light ..................................... 13 2
Driving ab road (symm etrical dipped
beam) .................................................. 12 8
Fo g light (extended range) ................... 13 2
Haza rdwa rning lights .......................... 131
Headla mpflasher ................................ 13 0
High beam ........................................... 13 0
Intellige nt Light Sy stem ....................... 131
Light switch .........................................1 28
Low beam ............................................ 12 8
Mo torw ay mode ................................... 13 2
Pa rking lights ...................................... .128
Re ar fog light ....................................... 12 8
Re sponsibility for lighting sy stems .......1 28
Setting the dipped beam ..................... 13 4
Setting theex terior lighting switch-
off delay time ...................................... 13 5
Setting the sur round lighting .............. .135 St
anding lights .................................... .128
Tu rn signal lights ................................. 13 0
Limiter ...................................................... 202
Ac tivating ............................................ 203
Buttons ................................................ 203
Calling up a speed ............................... 203
Deactivating ........................................ 203
Fu nction .............................................. 202
Pa ssive mode ...................................... 202
Pe rm anent setting .............................. .204
Re quirements: .................................... .203
Selecting ............................................. 203
Setting a speed ................................... 203
St oring a speed ................................... 203
Sy stem limitations ...............................2 02
Limiting speed see Limi ter
LINGU ATRO NIC ........................................ 274
Application specific voice commands
............................................................ .275
Au dible help functions .........................2 76
Global voice commands ...................... .275
Impr oving speech quality .................... .276
Langua gesetting ................................. 276
Media pla yervo ice commands ............ 283 566
Index

O
Occupant saf ety
Pe ts in theve hicle ................................. 70
Occupant saf ety
see Airbag
see Automatic front passenger front
airbag shutoff
see PRE-SAFE ®
(anticipatory occu‐
pant pr otection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
see Restra int sy stem
see Seat belt
Odome ter
see Total dis tance
Oil see Engine oil
On-board co mputer ................................. 262
Assis tant displ aymenu ........................ 265
Displaying the service due date ........... 400
Head-up display menu .........................2 71
Media menu ........................................2 70
Menu designs ...................................... 263
Menu overview .................................... 262 Multifunction display ..........................
.264
Na vigation menu ................................. 268
Operating ............................................ 262
Ra dio menu .........................................2 69
Service menu ...................................... 265
Te lephone menu .................................. 270
Tr ip menu ............................................ 266
On-boa rddiagno stics inter face
see Diagno stics connection
On-boa rdelectronics
Engine electronics .............................. .461
No tes ................................................... 461
Tw o-w ayradios .................................... 461
Open-source software .............................. 29
Opening the boot lid using your foot
HANDS-FREE ACCESS .......................... .83
Operating fluids
Ad Blue ®
............................................... 470
Ad ditives (fuel) .................................... 468
Brake fluid .......................................... .472
Coolant (engine) .................................. 473
Engine oil ............................................. 471
Fu el (diesel) ......................................... 468
Fu el (petrol) ......................................... 467 No
tes .................................................. 465
Wi ndsc reen washer fluid ...................... 473
Operating saf ety
48 V on-boa rdelectrical sy stem ............ 21
Declaration of Conformity (electro‐
magnetic compatibility) ........................ .23
Declaration of conformity (ja ck) ............ 23
Declaration of con form ity (TIREFIT kit) .. 24
Declaration of conformity (wireless
ve hicle components) ............................. 23
EQ Boost ................................................ 21
Information ............................................ 21
Operating sy stem
see On-board computer
Outside mir rors ................................ 140, 141
Anti-dazzle mode (automatic) ............... 141
Au tomatic mir rorfo lding function ........ 14 2
Fo lding in/out .................................... .140
Operating the memory function ........... 11 2
Pa rking position .................................. .141
Setting ................................................. 14 0
Overhead control panel Making calls (Mercedes me connect).............................................................3 59 Index
571