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 (/ 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. #
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
lights up The
red seat belt warning lamp will light up once the engine has star ted.
In addition, a warning tone may sound.
*T he seat belt warning lamp reminds the driver and front passenger tofast entheir seat belts. #
Fasten your seat belt (/ page41). Displa
y messages and warning/indicator lamps 639
ADS PLUS da
mping sy stem
see AIRMATIC
Af ter-sales service centre
see ASS YST PLUS
Air conditioning menu Calling up ............................................. 167
Air conditioning sy stem
see Climate control
Air distribution Setting ................................................ .165
Setting (multimedia sy stem) ................1 68
Air freshener sy stem
see Fragrance sy stem
Air inlet see Air-water duct
Air pressure see Tyre pressure
Air suspension see AIRMATIC
Air vents ................................................... 176
Ad justing (front) ................................... 176
Ad justing (rear) .................................... 17 7
Glo vebox .............................................1 77Air
vents
see Air vents
Ai r-re circulation mode ............................ 16 9
Air-water duct .......................................... 502
Ke eping free ........................................5 02
Airbag ........................................................ .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 ..............................................44
Re duced pr otection ...............................45
Side impact airbag ................................ 42
Wi ndow airbag ....................................... 42
Ai rflow
Setting ................................................ .165
AIRMATIC ................................................. .251
Setting ................................................. 254
Suspension .......................................... 251
Alarm sy stem
see ATA (anti-theft alarm sy stem) All-wheel drive
see 4MATIC
Alternative route
see Route
Ambiance light Setting (Rear Seat En tertainment
Sy stem) ............................................... 492
Ambient lighting Setting (multimedia sy stem) ................1 55
Android Auto ............................................ 452
Connecting a mobile phone ................. 452
Control using the application buttons
.............................................................4 53
Ending ................................................. 453
Information .......................................... 452
Overview ............................................. 452
Sound settings ................................... .453
Tr ans ferred vehicle data ......................4 54
Animals Pets in theve hicle ..................................76
Anti-lock braking sy stem
see ABS (Anti-lock Braking Sy stem) 650
Index
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 .............................. 82
Immobiliser .........................................1 04
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 50
Connecting an iPhone ®
....................... 451
Control using the application buttons
.............................................................4 51
Ending ................................................ .451
No tes ................................................... 451
Overview ............................................. 450
Sound settings .....................................4 51
Tr ans ferred vehicle data ......................4 54Asht
ray
Fr ont centre console ........................... 14 0
Assistance Menu (on-board co mputer) .................. 310
Assistance sy stems
see Driving saf ety sy stem
ASS YST PLUS ........................................... 495
Battery disconnection pe riods .............4 96
Displ aying the service due date ........... 495
Fu nction/no tes ................................... 495
Re gular maintenance work .................. 495
Special service requirements .............. 495
ATA (anti-theft ala rmsystem) ................ .104
Deactivating the alarm ........................ 105
Fu nction .............................................. 104
Fu nction of interior pr otection .............1 06
Priming/deactivating interior pr otec‐
tion ...................................................... 107
Priming/deactivating tow- aw ay pro‐
te ction ................................................. 106
To w- aw ay protection function .............. 105
AT TENTION ASSI ST......................... 285, 286
Fu nction .............................................. 285
Setting ................................................. 286 Sy
stem limitations ...............................2 85
At tention assistant
see ATTENTION ASSIST
Au thorised workshop
see Qualified specialist workshop
Au tomatic car wash mode
Ac tivating ............................................ 504
Au tomatic distance control
see Active Dis tance Assi stDISTRONIC
Au tomatic driving lights .........................147
Au tomatic engine start (ECO start/
sto p function) .......................................... 189
Au tomatic engine stop (ECO start/
sto p function) .......................................... 189
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 ........................................... 46, 47
Fu nction of the automatic front
passenger front airbag deactivation
sy stem ................................................... 46 Index
651
Displ
ay................................................. 511
Exterior lighting ................................... 509
High-p ressure cleaner .........................5 04
Pa int wo rk ............................................ 506
Plastic trim ........................................... 511
Re alwo od/trim elements .................... 511
Re versing camera ................................ 509
Ro of lining ............................................ 511
Seat belt ............................................... 511
Seat co ver ............................................ 511
Senso rs............................................... 509
Ta ilpipes .............................................. 509
Tr ailer hit ch......................................... 509
Wa shing byhand ................................. 505
Wheels/rims ....................................... 509
Wi ndo ws .............................................. 509
Wi per blades .......................................5 09
Carpet (Care) ............................................ 511
Changing gears ........................................ 19 9
Manually ..............................................1 99
Changing hub caps .................................. 547
Changing the lights
Driving abroad (symm etrical low
beam) .................................................. 14 6Cha
rging
Bat tery (vehicle) .................................. 525
Mobile phone (wireless) .......................1 43
USB port .............................................. 14 2
Child saf ety lock
Ac tivating/deactivating (multimedia
sy stem) ............................................... 380
Re ar door .............................................. .75
Re ar side wind ows................................. 76
Child seat App rova l categories .............................. .59
At tach ing (no tes) ................................... 58
Basic instructions ..................................51
Fr ont passenger seat (no tes) ................. 73
Fr ont passenger seat (without auto‐
matic airbag shutoff) ............................. 72
ISOFIX/i-Size (fitting) ............................ 65
No tes on risks and dangers ...................52
Re commended child restra int sys‐
te ms ...................................................... 56
Seats suita blefor belt-secu redch ild
re stra int sy stems ................................... 69
Seats suitable for i‑Size child
re stra int sy stems ................................... 64Seats suitable
for ISOFIX child
re stra int sy stems ................................... 61
Secu ring on the front passenger seat ....74
Secu ring on there ar seat ...................... 71
To pTe ther ..............................................67
Child ren
Av oiding dangers in theve hicle .............52
Basic instructions .................................. 51
Chock ...................................................... .546
St orage location ..................................5 46
Cho ck
see Chock
Cigar ette lighter
Fr ont centre console ........................... 14 0
Cleaning see Care
Climate control ........................................ 16 5
Ac tivating/deactivating the A/C
function (cont rol panel) ...................... .167
Ac tivating/deactivating the A/C
function (multimedia sy stem) .............. 167
Ac tivating/deactivating the synchro‐
nisation function (cont rol panel) .......... 16 8654
Index
Blind Spot Assi
stcur rently una vaila‐
ble See Owner's Manual ...................... 596
Blind Spot Assist inope rative ............... 597
Blind Spot Assi stnot available when
to wing a trailer See Owner's Manual ...5 97
Cann otstart engine See Owner's
Manual ................................................ 607
ÁChan gekey bat teries .................. 622
JCheck brake fluid le vel................ 585
Check brake pads See Owner's Man‐
ual ...................................................... .586
ïChe cktrailer hitch lo ck(white
display message) .................................6 25
hChe cktyre(s) ............................... 61 9
! Clean the fuel filter .................... .609
ÁCo mpressor is cooling ................. 594
?Coolant Stop vehicle Switch
engine off ............................................ 605
Cruise contro l and Limiter inope ra‐
tive ...................................................... 603 Cruise control inope
rative ................... 603
Cruise control off ................................ 603
_Cur rently una vailable Camera
view restricted ..................................... 600
çCu rrently unavailable Radar
sensors dirty .......................................5 99
!cur rently una vailable See Own‐
er's Manual .......................................... 578
÷ currently una vailable See Own‐
er's Manual ........................................ .579
Drive sy stem Malfunction Stop
Switch engine off ................................ 609
Drive sy stem Malfunction Visit work‐
shop ....................................................6 09
5Engine oil le vel cannot be
measured ............................................ .612
5 Engine oil le velRe duce oil le vel.... 611
5 Engine oil le velSt op vehicle
Switch engine off ................................. 61 05
Engine oil pressu reStop Switch
off engine ............................................. 611
ä Fault Drive at max. 80 km/h .......593
6Fr ont left malfunction Consult
wo rkshop (e xample)............................ 587
Fr ont-passenger airbag disabled See
Owner's Manual ..................................5 88
Fr ont-passenger airbag enabled See
Owner's Manual ..................................5 88
Hazard warning lamps malfunction‐
ing ...................................................... .632
&inoperative Battery low ...............629
&inoperative Refuel vehicle ........... 629
&inoperative See Owner's Man. ....629
!inoperative See Owner's Man‐
ual ....................................................... 579
÷ inope rative See Owner's Man‐
ual ....................................................... 580
Tinoperati veSee Owner's Man‐
ual ....................................................... 581 Index
659
Exterior lighting
Care .................................................... 509
Exterior lighting see Lights
External device Locking (child saf ety lock) .................. .380 F
Fa tigue de tection
see ATTENTION ASSIST
Fa ult message
see Displ aymessa ge
Favo urites
Ad ding .................................................3 61
Ad ding a destination ...........................3 92
Calling up ............................................. 361
Deleting ............................................... 362
Home add ress .....................................3 92
Moving ................................................. 361
Overview ............................................. 360
Re naming ............................................. 361
Wo rkaddress ...................................... 392
Fi ll le vel
Ad Blue ®
............................................... 310Fi
lling station sear ch
St arting automatic sear ch................... 400
Switching au tomatic sear chon/off ..... 400
Fire extinguisher ...................................... 514
Fi rs t-aid kit (soft sided) ...........................514
Flacon Inserting/removing ............................ .170
Flat towing
see Tow- bar sy stem
Flat tyre ....................................................5 15
MOExtended tyres ...............................5 16
No tes ................................................... 51 5
TIREFIT kit ............................................ 517
Wheel change ...................................... 547
Floor mats ................................................ 14 5
Fo g light (extended range) ......................1 50
Fo il co vering
Ra dar and ultrasonic sensors ...............2 17
Fr ag rance
see Frag rance sy stem
Fr ag rance sy stem .................................... 17 0
Inserting/removing theflacon ............ .170 Setting .................................................
17 0
Fr ee driving mode
St arting .............................................. .263
Fr ee software ............................................ 35
Fr equencies
Mobile phone ...................................... 559
Tw o-w ayradio ...................................... 559
Fr equency band
Dialling (on-board computer) .............. .314
Fr ont airbag (driver, front passenger) .....42
Fr ont passenger seat ...............................111
Ad justing from the driver's seat ........... 111
Fr ont passenger seat
see Seat
Fu el .......................................................... .565
Ad ditives .............................................5 65
Diesel ................................................. .565
E10 ...................................................... 564
Fu elreser ve ........................................ 566
Low outside temp eratures ...................5 65
Pe trol ................................................... 564
Quality (diesel) .................................... 565
Quality (p etro l) .................................... 564 Index
665
Ke
yring attachment .............................. 80
Overview ............................................... 78
Problem .................................................82
Un locking setting .................................. 79
Ke y functions
Deactivating .......................................... 79
KEYLESS-GO Locking theve hicle ................................ 85
Problem .................................................86
Un locking setting .................................. 79
Un locking theve hicle ............................85
Kickd own.................................................2 00
Using ................................................... 200
Knee airbag ................................................ 42 L
Lamp see Interior lighting
Lamps (in stru ment 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 80
No tes .................................................. 380
Setting .................................................3 80
LED light see Intelligent Light Sy stem
Le vel control sy stem
see AIRMATIC
see E- ACTIVE BODY CONTROL
Light switch Overview .............................................1 46
Lighting see Interior lighting
see Lights
Lights ........................................................ 14 6
Ac tive headla mps ................................ 14 9
Ad aptive Highbeam Assist .................. .151
Ad justing the instrument lighting ......... 310
Au tomatic driving lights ....................... 147
Combination swit ch............................. 14 8
Corne ring light ..................................... 15 0
Driving ab road (symm etrical low
beam) .................................................. 14 6Fo
g light (extended range) ................... 15 0
Haza rdwa rning lights .......................... 14 9
Headla mpflasher ................................ 14 8
High beam ........................................... 14 8
Intellige nt Light Sy stem ....................... 14 9
Light switch ......................................... 14 6
Low beam ............................................ 14 6
Mo torw ay mode ................................... 15 0
Off-road light ........................................1 51
Pa rking lights ...................................... .146
Re ar fog light ....................................... 14 6
Re sponsibility for lighting sy stems ...... 14 6
Setting the dipped beam ..................... 154
Setting theex terior lighting switch-
off delay time ...................................... 154
St anding lights .................................... .146
Switching the sur round lighting
on/off ................................................ .154
Tu rn signal lights ................................. 14 8
Limiter ...................................................... 231
Ac tivating ............................................ 232
Buttons ................................................ 232
Calling up a speed ............................... 232
Deactivating ........................................ 232
Fu nction .............................................. 231 Index
669
St
andby mode function ........................ 216
No tifications Centre ................................ 362
Calling up a notification ...................... .363
Editing a notification ........................... 364
Global sea rch (o verview) .................... .364
Noti fication types ................................ 362
Overview ............................................. 362
Selecting actions for a notification ...... 363
Using theglobal sear ch....................... 365 O
Occupant saf ety
Pe ts in theve hicle ..................................76
Occupant saf ety
see Airbag
see Automatic front passenger front
airbag shutoff
see PRE-SAFE ®
(anticipatory 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 ................................................. 263
Off-road driving ....................................... 186
Off-road driving see Off-road driving
Off-road ESP ®
Fu nction/no tes ................................... 222
Off-road ESP ®
(Electronic Stability
Prog ram)
Switching on/o ff................................. 223
Off-road light ............................................ 151
Oil see Engine oil
On-board computer ................................. 305
Assis tance menu ................................. 310
Displ aying the service due date ........... 495
Head-up display menu .........................3 16
Media menu ......................................... 314
Menu designs ...................................... 307
Menu overview .................................... 305
Multifunction display .......................... .309 Na
vigation menu .................................. 312
Operate ............................................... 305
Ra dio menu .......................................... 314
Service menu ....................................... 310
Te lephone menu .................................. 315
Tr ip menu ............................................ .311
On-board diagnostics inter face
see Diagno stics connection
On-boa rdelectronics
Engine electronics .............................. .558
No tes .................................................. 558
Tw o-w ayradios .................................... 558
Online services Data storage .......................................... 34
Online services see In-Car Of fice
Open-source so ftwa re .............................. 35
Opening the tailgate using your foot
see HANDS-FREE ACCESS
Ope rating fluids
Ad Blue ®
............................................... 566
Ad ditives (fuel) .................................... 565
Brake fluid .......................................... .569 Index
675