Page 432 of 545
Key
Display messages
Possible causes/consequences and 0050 0050Solutions
Á Replace key *H
avetheke yre placed. #
Consult a qualified specialist workshop.
Á Change key batteries *T
hekey bat tery is dischar ged. #
Replace the battery (/ page78).
Á
Key not detected (white dis‐
play message) *T
hekey is cur rently und etected. #
Change the location of theke y in theve hicle. #
Ifth eke y is still not recognised, place it in the slot forst arting with theke y (/ page175). Displ
aymessa ges and warning/indicator lamps 429
Page 507 of 545

Air-recirculation mode..............................
16 4
Air-water duct Keeping free.......................................... 356
Airbag Activation................................................ 40
Fr ont airbag (driver, front passenger)...... 45
Ins tallation locations.............................. .45
Knee airbag............................................ .45
Overview................................................. 45
PA SSENGER AIR BAG indicator lamp....... 50
Pr otection................................................ 46
Re duced pr otection.................................47
Side airba g.............................................. 45
Wi ndow airba g......................................... 45
Ai rflow
Setting................................................... 161
AIRM ATIC
Setting.................................................. .252
Suspension........................................... 250
Alarm sy stem
see ATA (anti-theft alarm sy stem)
All-wheel drive see 4MATIC Ambient lighting
Setting (MBUX multimedia sy stem)........ 151
Android Auto
see Smartphone integration
Animals Pets in theve hicle................................... 75
Anti-lock braking sy stem
see ABS (Anti-lock Braking Sy stem)
Anti-skid chains
see Snow chains
Anti-theft pr otection
Ad ditional door loc k................................ 79
Immobiliser............................................. 98
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 ®
see Smartphone integration Assistance sy
stems
see Driving saf ety sy stem
ASS YST PLUS
Battery disconnection pe riods.............. 350
Displaying the service due dat e............ 349
Fu nction/no tes..................................... 349
Re gular maintenance work.................... 349
Special service requ irements................ 349
ATA (anti-theft ala rmsystem)
Deactivating the alarm............................ 99
Fu nction.................................................. 98
Fu nction of interior pr otection............... 100
Priming/deactivating interior pr otec‐
tion........................................................ 100
Priming/deactivating tow- aw ay pro‐
te ction................................................... 100
To w- aw ay protection function.................. 99
AT TENTION ASSI ST
Fu nction................................................. 219
Setting................................................... 221
Sy stem limitations................................. 219
At tention assistant
see ATTENTION ASSIST 504
Index
Page 510 of 545

High-pressu
recleaner........................... 359
Pa int wo rk.............................................. 359
Plastic trim............................................ 363
Re alwo od/trim elements..................... 363
Re versing camera................................. .361
Ro of lining.............................................3 63
Ru nning boards...................................... 361
Seat belt................................................ 363
Seat co ver............................................. 363
Senso rs................................................. 361
St eering wheel...................................... 363
Ta ilpipes................................................ .361
Tr ailer hit ch............................................ 361
Wa shing byhand................................... 359
Wheels/rims.......................................... 361
Wi ndo ws................................................ 361
Wi per blades.......................................... 361
Carpet (Care)............................................. 363
Changing gears
Manually. ............................................... 194
Changing hub caps .................................. .396
Charging Battery (vehicle).................................... 377
Mobile phone (wireless).........................1 38USB port................................................
13 8
Child saf ety lock
Re ar door................................................ .73
Re ar side wind ows................................... 74
Child seat App rova l categories................................ .60
At tach ing (no tes).....................................59
Basic instructions.................................... 54
Fr ont passenger seat (no tes)...................71
Fr ont passenger seat (without auto‐
matic airbag shutoff)...............................70
ISOFIX/i-Size (fitting).............................. 63
No tes on risks and dangers..................... 55
Re commended child restra int sy stems.... 58
Seats suitable for belt-secu redch ild
re stra int sy stems..................................... 67
Seats suitable for i‑Size child
re stra int sy stems..................................... 62
Seats suitable for ISOFIX child
re stra int sy stems..................................... 61
Secu ring on the co-driver seat................. 72
Secu ring on there ar seat........................ 69
To pTe ther............................................... 66
Children Avoiding dangers in theve hicle............... 55 Basic instructions....................................
54
Chock Storage location.................................... 395
Chock see Chock
Cleaning see Care
Climate control Activating/deactivating (rear operat‐
ing unit)................................................ .162
Ac tivating/deactivating the A/C
function (contro l panel)........................ .162
Ac tivating/deactivating the A/C
function (MBUX multimedia sy stem)..... 16 3
Ac tivating/deactivating the synchro‐
nisation function (contro l panel)............16 4
Ac tivating/deactivating the synchro‐
nisation function (MBUX multimedia
sy stem).................................................. 16 4
Air-reci rculation mode...........................1 64
Au tomatic control.................................. 16 3
Au tomatically controlling (rear oper‐
ating unit).............................................. 16 3
Calling up the air conditioning menu..... 16 2 Index
507