
Occupant saf
ety Wa
rning/indicator lamp
Possible causes/consequences and 0050
0050Solutions
0075 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 (/ page37). &
WARNING Risk of inju rydue tomalfunctions 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 may
not deploy as intended during 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. #
Notethe messages on the multifunction displa y. #
Consult a qualified specialist workshop immediatel y.
0076
Seat belt warning lamp
fl ashes The
red seat belt warning lamp flashes and an intermit tent wa rning tone sounds.
*T he driver or front passenger has not fastened their seat belt while theve hicle is in motion. #
Fasten your seat belt(/ page41).
*T here are objects on the front passenger seat. #
Remo vethe objects from the front passenger seat. Display messages and
warning/indicator lamps 691

Burmes
ter®
sur round sound sy stem ... 505
Ad justing the mid- range, treble and
bass
Burmes ter®
high-end 3D sur round
sound sy stem ...................................... 506
Burmes ter®
sur round sound sy stem ... 505
Ad justing the sound focus
Burmes ter®
sur round sound sy stem ... 506
Ad justing the sound optimisation
Burmes ter®
high-end 3D sur round
sound sy stem ...................................... 507
Ad justing treble, mid- range and bass
settings
Burmes ter®
high-end 3D sur round
sound sy stem ...................................... 506
Burmes ter®
sur round sound sy stem ... 505
ADS PLUS damping sy stem
see AIRMATIC
Af ter-sales service centre
see ASS YST PLUS
Air conditioning menu Calling up ............................................. 161Air conditioning sy
stem
see Climate control
Air distribution Setting ................................................ .159
Setting (MBUX multimedia sy stem) ..... 16 2
Air freshener sy stem
see Frag rance sy stem
Air inlet see Air-water duct
Air pressure see Tyre pressure
Air suspension see AIRMATIC
Air vents ................................................... 17 0
Ad justing (front) ................................... 17 0
Ad justing (rear) .................................... 171
Glo vebox .............................................1 71
Air vents
see Air vents
Ai r-re circulation mode ............................ 16 3
Air-water duct .......................................... 524
Ke eping free ........................................5 24Airbag
........................................................ .42
Ac tivation .............................................. 37
Fr ont airbag (driver, front passenger) ....42
Ins tallation locations ............................ .42
Knee airbag ........................................... 42
Overview ............................................... 42
PA SSENGER AIR BAG indicator lamp .... .47
Pr otection ..............................................43
Re duced pr otection ...............................45
Side airbag ............................................ 42
Wi ndow airbag ....................................... 42
Ai rflow
Setting ................................................ .159
AIRMATIC ................................................. .246
Setting ................................................. 24 9
Suspension .......................................... 24 6
Alarm sy stem
see ATA (anti-theft alarm sy stem)
All-wheel drive see 4MATIC
Alternative route
see Route Index
707

Au
gmented reality
see Route guidance with augmented reality
Au thorised workshop
see Qualified specialist workshop
Au tomatic car wash mode
Ac tivating ............................................ 526
Au tomatic distance control
see Active Dis tance Assi stDISTRONIC
Au tomatic driving lights ..........................141
Au tomatic engine start (ECO start/
sto p function) .......................................... 184
Au tomatic engine stop (ECO start/
sto p function) .......................................... 184
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 ........................................... 45, 47
Fu nction of the automatic front
passenger front airbag deactivation
sy stem ................................................... 45
PA SSENGER AIR BAG indicator lamp .... .47Au
tomatic measures af ter an accident ...51
Au tomatic mir rorfo lding function
Ac tivating/deactivating ...................... .156
Au tomatic seat adjustment
Setting ................................................ .108
Au tomatic transmission
DIRECT SELECT le ver ........................... 19 2
Drive program display .......................... 19 0
Drive programs .................................... 189
DY NA MIC SELECT switch .................... 189
Engaging drive position ........................ 194
Engaging neutral .................................. 19 3
Engaging pa rkposition ........................ 19 3
Engaging reve rsege ar ........................ .193
Kickdown ............................................. 19 6
Manual gear changing .......................... 194
St eering wheel gearshift paddles ........ .194
Tr ansmission position display .............. 19 2
Tr ansmission positions ........................ 19 2
Axle load Perm issible .......................................... 61 5
Tr ailer operation .................................. 631 B
Bag hook .................................................. 12 5
Ball coupling Folding in/out (MBUX multimedia
sy stem) ................................................ 294
Ball neck Exte nding/r etra cting ........................... 292
BA S (Brake Assist Sy stem) .................... .214
Battery Charging (Remo teOnline) .................... 176
Ke y ........................................................ 81
Re mo tecontrol (s tationary heater) ...... 16 8
Battery see Battery (vehicle)
Battery (vehicle) ...................................... 548
Charging .............................................. 547
Charging (Remo teOnline) .................... 176
No tes ................................................... 543
No tes (s tarting assis tance and
ch arging) ............................................ .545
Re placing ............................................ 548
St arting assis tance .............................. 547 Index
709

Child saf
ety lock
Re ar door .............................................. .76
Re ar side wind ows................................. 77
Switching on/off (MBUX Rear Seat
En tertainment Sy stem) ........................ 376
Child seat App rova l categories .............................. .60
At tach ing (no tes) ................................... 59
Basic instructions ..................................52
Fr ont passenger seat (no tes) ................. 74
Fr ont passenger seat (without auto‐
matic airbag shutoff) ............................. 73
ISOFIX/i-Size (fitting) ............................ 66
No tes on risks and dangers ...................53
Re commended child restra int sys‐
te ms ...................................................... 57
Seats suitable for belt-secu redch ild
re stra int sy stems ................................... 70
Seats suitable for i‑Size child
re stra int sy stems ................................... 65
Seats suitable for ISOFIX child
re stra int sy stems ................................... 62
Securing on the front passenger seat ....75
Secu ring on there ar seat ...................... 72
To pTe ther ..............................................68 Child
ren
Av oiding dangers in theve hicle .............53
Basic instructions .................................. 52
Cho ck....................................................... 568
St orage location ..................................5 68
Cho ck
see Chock
CI+ module ..............................................5 04
Calling up a menu ................................ 504
Inserting the smart card ......................5 03
Cigar ette lighter
Fr ont centre console ........................... 13 3
Cleaning see Care
Climate control ........................................ 15 9
Ac tivating/deactivating (rear operat‐
ing unit) ................................................ 161
Ac tivating/deactivating the A/C
function (cont rol panel) ........................ 161
Ac tivating/deactivating the A/C
function (MBUX multimedia sy stem) ....1 61
Ac tivating/deactivating the synchro‐
nisation function (cont rol panel) .......... 16 2Ac
tivating/deactivating the synchro‐
nisation function (MBUX multimedia
sy stem) ................................................ 16 3
Air di stribution settings .......................1 62
Air-recirculation mode ......................... 16 3
Au tomatic control ................................ 161
Au tomatically controlling (rear oper‐
ating unit) ............................................ 16 2
Calling up the air conditioning menu ....1 61
Defrosting the windscreen ...................1 59
Demisting wind ows............................. 16 3
Fr ont air vents ..................................... 17 0
Glo vebox air vent ................................ 171
Inserting/removing theflacon (fra‐
gr ance sy stem) .................................... 16 4
Ionisation ............................................. 16 4
No te .................................................... 15 9
Re ar air vents ....................................... 171
Re ar operating unit .............................. 16 0
Re sidual heat ....................................... 16 3
Re sidual heat (rear operating unit) ...... 16 3
Sets the air flow ................................... 15 9
Setting (MBUX multimedia sy stem) ...... 161
Setting the air distribution ...................1 59
Setting the fragrance sy stem ............... 16 4712
Index

Ac
tive Dis tance Assi stavailable
again .................................................... 67 0
Ac tive Dis tance Assi stcur rently
una vailable See Owner's Manual .........670
Ac tive Dis tance Assi stinope rative ....... 67 0
Ac tive Lane Keeping Assist cur rently
una vailable See Owner's Manual .........663
Ac tive Lane Keeping Assist inopera‐
tive ...................................................... 663
Ac tive Parking Assist and
PA RKTRONIC inoperati veSee Own‐
er's Manual ......................................... 665
Ac tive Steering Assist cur rently
una vailable due tomultiple emer‐
ge ncy stops ......................................... 663
Ac tive Steering Assist cur rently
una vailable See Owner's Manual .........662
Ac tive Steering Assist inoperative .......662
Ac tive Stop-and-Go Assist cur rently
una vailable see Owner's Manual .........664 Ac
tive Stop-and-Go Assist inopera‐
tive See Owner's Manual ..................... 664
Ad aptive Highbeam Assist cur rently
una vailable See Owner's Manual .........641
Ad aptive Highbeam Assist inopera‐
tive ...................................................... .641
Ad aptive Highbeam Assist Plus cur‐
re ntly una vailable See Owner's Man‐
ual ...................................................... .641
Ad aptive Highbeam Assist Plus inop‐
erative ................................................ .641
Anti-theft alarm sy stem Malfunction ...647
App lybrake todeselect Park (P)
position ...............................................6 50
Apply brake toselect D or R ................651
App lybrake toselect R ........................ 651
Au xilia rybattery malfunction .............. 653
Beginning emer gency stop .................. 662
Blind Spot Assist cur rently una vaila‐
ble See Owner's Manual ...................... 664 Blind Spot Assist inope
rative ............... 664
Blind Spot Assi stnot available when
to wing a trailer See Owner's Manual ...6 65
Cannot start engine See Owner's
Manual ................................................ 680
Cruise control and Limiter inopera‐
tive ...................................................... .671
Cruise cont rol inope rative .................... 671
Cruise cont rol off ................................ .671
Drive sy stem Malfunction Stop
Switch engine off ................................ 650
Drive sy stem Malfunction Visit work‐
shop ....................................................6 50
Fr ont-passenger airbag disabled See
Owner's Manual ..................................6 34
Fr ont-passenger airbag enabled See
Owner's Manual ..................................6 35
Hazard warning lamps malfunction‐
ing ...................................................... .641
Limiter inoperative ............................... 671718
Index

Exterior lighting
see Lights
Exterior lighting (Care) ............................ 531F
Fa tigue de tection
see ATTENTION ASSIST
Fa ult message
see Displ aymessa ge
Favo urites
Ad ding .................................................3 57
Ad ding a destination ...........................3 96
Calling up ............................................ 357
Deleting ............................................... 358
Home add ress .....................................3 96
Moving ................................................ 358
Overview ............................................. 357
Re naming ............................................ 358
Wo rkaddress ...................................... 396
Fi ll le vel
Ad Blue ®
............................................... 306
Fi lling station sear ch
St arting automatic sear ch................... 403
Switching au tomatic sear chon/off ..... 403 Fire
extinguisher ..................................... 536
Fi rs t-aid kit (soft sided) .......................... 536
Flacon Inse rting/ removing ............................. 16 4
Flat towing
see Tow- bar sy stem
Flat tyre ....................................................5 37
MOExtended tyres ...............................5 38
No tes ................................................... 537
TIREFIT kit ...........................................5 39
Wheel change ...................................... 569
Floor mats ................................................ 13 8
Fo g light (extended range) ..................... 14 4
Fo il co vering
Ra dar and ultrasonic sensors ...............2 12
Fr ag rance
see Frag rance sy stem
Fr ag rance sy stem .................................... 16 4
Inserting/removing theflacon ............ .164
Setting ................................................. 16 4
Fr ee driving mode
St arting .............................................. .259 Fr
ee software ............................................ 35
Fr equencies
Mobile phone ...................................... .581
Tw o-w ayradio ...................................... 581
Fr equency band
Dialling (on-board computer) .............. .310
Fr ont airbag (driver, front passenger) .....42
Fr ont passenger seat ..............................104
Ad justing from the driver's seat ..........1 04
Fr ont passenger seat
see Seat
Fu el .......................................................... .620
Ad ditives .............................................6 20
Diesel ................................................. .620
E10 ...................................................... 61 9
Fu elreser ve ......................................... 621
Low outside temp eratures ...................6 20
Pe trol ................................................... 61 9
Quality (diesel) .................................... 620
Quality (petrol) ..................................... 61 9
Re fuelling ............................................. 197
Sulphur content ................................... 61 9
Ta nk content ........................................ 621 Index
723

Kickd
own.................................................1 96
Using ................................................... 19 6
Knee airbag ................................................ 42 L
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 .................................................. 377
No tes ................................................... 377
Setting ................................................. 377
LED light see In telligent Light Sy stem
Le vel control sy stem
see AIRMATIC
see E- ACTIVE BODY CONTROL
Light switch Overview .............................................1 40Lighting
see Interior lighting
see Lights
Lights ........................................................ 14 0
Ac tive headla mps ................................ 14 3
Ad aptive Highbeam Assist .................. .145
Ad justing the instrument lighting ........ 306
Au tomatic driving lights ....................... 141
Combination swit ch............................. 14 2
Corne ring light ..................................... 14 4
Driving ab road (symm etrical low
beam) .................................................. 14 0
Fo g light (extended range) ................... 14 4
Haza rdwa rning lights .......................... 14 3
Headla mpflasher ................................ 14 2
High beam ........................................... 14 2
Intellige nt Light Sy stem ....................... 14 3
Light switch .........................................1 40
Low beam ............................................ 14 0
Mo torw ay mode .................................. 14 4
Off-road light ....................................... 14 5
Pa rking lights ...................................... .140
Re ar fog light ....................................... 14 0
Re sponsibility for lighting sy stems ...... 14 0
Setting the dipped beam ..................... 14 8Setting
theex terior lighting switch-
off delay time ...................................... 14 8
St anding lights .................................... .140
Switching the sur round lighting
on/off ................................................ .148
Tu rn signal lights ................................. 14 2
Limiter ...................................................... 226
Ac tivating ............................................ 227
Buttons ................................................ 227
Calling up a speed ............................... 227
Deactivating ........................................ 227
Fu nction .............................................. 226
Pa ssive mode ...................................... 226
Pe rm anent setting .............................. .229
Re quirements ...................................... 227
Selecting ............................................ .227
Setting a speed ................................... 227
St oring a speed ................................... 227
Sy stem limitations ...............................2 26
Limiting speed see Limi ter
Limiting the opening angle (tailgate) ...... 92
LINGU ATRO NIC ........................................ 315
Au dible help functions .........................3 18 Index
727

Un
locking theve hicle (digital vehicle
ke yst icke r) ............................................ 83
Un locking theve hicle (mobile phone) ....83
Using a mobile phone .......................... 437
Ne utral
Engaging .............................................. 19 3
NFC see Near Field Communication (NFC)
Note s........................................................ 178
Optimised acceleration ........................ 178
No tifications Centre ................................ 358
Calling up a notification ...................... .359
Editing a notification ........................... 360
Global sea rch (o verview) .................... .360
Notification types ................................ 358
Overview ............................................. 358
Selecting actions for a notification ...... 360
Using theglobal sear ch....................... 361 O
Occupant saf ety
see Airbag
see Automatic front passenger front
airbag shutoff see
Automatic measu res af ter an accident
see Pets in theve hicle
see Post-collision brake
see PRE-SAFE ®
(anticipa tory occu‐
pant pr otection)
see PRE-SAFE ®
Impulse Side
see PRE-SAFE ®
PLUS (anticipatory
occupant pr otection plus)
see Restra int sy stem
see Seat belt
Odome ter
see Total dis tance
Off-road Assi st
Setting ................................................. 259
Off-road driving ....................................... 182
Off-road driving see Off-road driving
Off-road ESP ®
Fu nction/no tes .................................... 217
Off-road ESP ®
(Electronic Stability
Prog ram)
Switching on/o ff................................. 218
Off-road light ...........................................1 45Oil
see Engine oil
On-board comp uter................................. 301
Assis tance menu ................................. 307
Displaying the service due date ........... 517
Head-up display menu ........................ .312
Media menu ......................................... 310
Menu designs ...................................... 303
Menus overview .................................. .301
Multifunction display ........................... 305
Na vigation menu ................................. 308
Operating ............................................ 301
Ra dio menu .......................................... 310
Service menu ...................................... 306
Te lephone menu .................................. .311
Tr ip menu ............................................ 307
On-boa rddiagno stics inter face
see Diagno stics connection
On-boa rdelectronics
Engine electronics .............................. .580
No tes .................................................. 580
Tw o-w ayradios .................................... 580
Online services Data storage .......................................... 35 Index
733