Page 88 of 562
Anti-theft pr ot ection
Fu nction of th e immobilizer
The immobilizer pr eve nts yo ur ve hicle from being
st ar te d without th e cor re ct SmartK ey .
The immobilizer is automatically activated when
th e ignition is switched off and deactivated when
th e ignition is switched on.
When leaving th e ve hicle, alw ay s ta ke th e Smart‐
Ke y wit h yo u and lock th e ve hicle. An yo ne can
st art th e engine if a va lid SmartK ey has been left
inside th e ve hicle.
Page 523 of 562

Air suspension
see AIR BO DY CO NTROL
Air ve nts ................................................... 16 2
Ad justing (front) .................................. 16 2
Ad justing (rear) .................................... 16 3
Glo ve box ............................................ .1 64
Re ar cen te r air ve nt ............................. 16 3
Re ar side air ve nt ................................. 16 3
Air ve nts
see Air ve nts
Ai r- re circulation mode ............................ 16 0
Alarm
see Pa nic alarm
Alarm sy st em
see AT A (anti-theft alarm sy st em)
Alternative ro ute
see Ro ute
Amb ient lighting ...................................... 14 8
Android Au to ............................................ 326
Connecting a mobile phone ................. 326
Ending ................................................. 327
No te s .................................................. 326
Overview ............................................. 326 Sound settings .................................... 327
Tr ans fe rr ed ve hicle data ..................... .3 27
Animals
Pe ts in th e ve hicle ................................. 56
Anti-lock braking sy st em
see ABS (Anti-lock Braking Sy st em)
Anti-theft alarm sy st em
see AT A (anti-theft alarm sy st em)
Anti-theft pr ot ection
Immobilizer ............................................ 86
Anti- th eft pr ot ection
see AT A ( anti-theft alarm sy st em)
Anticipat ory occupant pr ot ection
see PRE- SA FE ®
(anticipatory occu‐
pant pr ot ection)
see PRE-SAFE ®
PLUS (anticipatory
occupant pr ot ection plus)
Apple CarPlay™ ....................................... 324
Connecting an iPhone ®
....................... 325
Ending ................................................ .3 26
No te s .................................................. 325
Overview ............................................. 324
Sound settings .................................... 325 Tr ans fe rr ed ve hicle data ..................... .3 27
Asht ra y
Fr ont center console ........................... 13 2
Re ar door ............................................ .1 32
Assistance gr aphic
Menu (on-boa rd compu te r) .................. 24 8
Assistance sy st ems
see Driving saf et y sy st em
ASS YS T PLUS ........................................... 37 7
Battery disconnection periods ............. 37 8
Displ ay ing th e service due date ........... 37 7
Fu nction/no te s ................................... 37 7
Re gular service wo rk ........................... 37 7
Special service re qu irements .............. 37 7
ATA (anti-theft ala rm sy st em) .................. 86
Deactivating th e alarm .......................... 87
Fu nction ................................................ 86
AT TENTION ASSI ST ......................... 232, 233
Fu nction ........................ ...................... 232
Setti ng
................................................. 233
Sy st em limitations .............................. .2 32
At te ntion assistant
see AT TENTION ASSIST Index 521
Page 537 of 562

Re ar (luxury head re st ra int) ................ .1 04
Re ar (setting th e last position) ............ .1 03
Head-up Display ...................................... 253
Ad justing brightness (on-board com‐
pu te r) .................................................. 253
Ad justing display elements (on-board
compu te r) ............................................ 253
Fu nction .............................................. 254
Menu (on-board compu te r) .................. 253
Setting th e position (on-board com‐
puter) .................................................. 253
Switching on/off ................................. 255
Using th e memory function .................. 11 3
Headlamp fl ashing .................................. 14 4
Headliner (care) ....................................... 390
Headphones (Rear Seat Entertain‐
ment Sy st em)
Ac tivating/deactivating ...................... .3 65
Ad justing th e vo lume .......................... .3 65
Overview ............................................. 364
Re placing batteries ............................ .3 65
Selecting a re ar passenger compart‐
ment display ........................................ 365 High beam
Swit ch ing on/off ................................ .1 44
High-beam headlamps
Ad aptive Highbeam Assist .................. .1 46
Hill st art assi st ........................................ 21 0
HOLD function ......................................... 21 0
Fu nction/no te s ............ ........................ 21 0
Sw
i tching on/off ................................. 21 0
Hood
Fu nction (active hood) ......................... 37 8
Opening/closing ................................. .3 78
Re setting (active hood) ........................ 37 8
Hotspot
Setting up (Wi-Fi) ................................. 281
Hydropneumatic suspension
see MAGIC BO DY CO NTROL
I
Identification plate
Engine ................................................ .4 45
Re frigerant .......................................... 453
Ve hicle ................................................ 44 5 Ignition
Swit ch ing on (s ta rt /s to p button) ........ .1 65
Ignition ke y
see SmartK ey
Immobilizer ................................................ 86
Indicator lamp
see Wa rn ing/indicator lamps
Individual drive prog ra m
Con fi guring .......................................... 17 3
Selecting .............................................. 17 3
Instrument clus te r
see Instrument display
see Wa rn ing/indicator lamps
Instrument display .................................. 24 4
Ad justing th e lighting ........................... 24 7
Fu nction/no te s ................................... 24 4
Overview ............................................. 24 4
Wa rn ing and indicator lamps (o ve rv iew) .. 8
Wa rn ing/indicator lamps .................... .5 01
Instrument lighting ................................ .2 47
Intelligent Light Sy st em
Cornering light function ...................... .1 46
Inter ch anging wheels ............................ .4 35Index 535