1, 2, 3 ...
12 V socket
see Sockets
4ETS (Electronic Traction System) .... 64
4MATIC (permanent four-wheel
drive) .................................................. 220
A
ABS (Anti-lock Braking System)
Display message ............................ 254
Function/notes ................................ 61
Important safety notes .................... 61
Warning lamp ................................. 286
Activating/deactivating air-recir-
culation mode .................................... 128
Activating/deactivating cooling
with air dehumidification ................. 124
Active Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 245
Display message ............................ 274
Function/notes ............................. 212
Towing a trailer .............................. 215
Active Curve System
Display message ............................ 269
Function/notes ............................. 188
Active Driving Assistance package . 212
Active Lane Keeping Assist
Activating/deactivating (on-
board computer) ............................ 245
Display message ............................ 273
Function/information .................... 215
Towing a trailer .............................. 217
Active light function ......................... 109
Active Park Assist
Display message ............................ 274
Active Parking Assist
Important safety notes .................. 194
Towing a trailer .............................. 197
Active Service System PLUS
see ASSYST PLUS service interval
display
ADAPTIVE BRAKE ................................. 66
Adaptive brake lamps ......................... 63
Adaptive Highbeam Assist
Function/notes ............................. 110
Adaptive Main-Beam Assist
Display message ............................ 265
Switching on/off (on-board com-
puter) ............................................. 248
AdBlue
®
Display message ............................ 268
Service indicator ............................ 323
topping up ..................................... 157
AdBlue
®
service indicator ................ 323
Additives (engine oil) ........................ 376
Adjusting the headlamp range ......... 108
ADS (Adaptive Damping System)
Function/notes ............................. 188
Airbags
Activation ......................................... 41
Front airbag (driver, front
passenger) ....................................... 44
Important safety guidelines ............. 42
Kneebag ........................................... 44
Sidebag ............................................ 44
Windowbag ...................................... 45
Air conditioning
Setting the temperature (rear
compartment) ................................ 126
Air-conditioning system
see Climate control
Air filter (white display message) .... 267
AIR FLOW ........................................... 125
AIRMATIC package
ADS (Adaptive Damping System) ... 188
Function/notes ............................. 188
Level control .................................. 189
Air pressure
see Tyre pressure
Air vents
Glove compartment ....................... 135
Important safety notes .................. 135
Rear ............................................... 136
Setting ........................................... 135
Setting the centre air vents ........... 135
Setting the side air vents ............... 135
Alarm system
see ATA (Anti-Theft Alarm system)
4
Index