Problem (malfunction) ...................155
Pulling away ................................... 139
Starting the engine ........................ 138
Steering wheel paddle shifters ...... 152
Trailer towing ................................. 150
Transmission position display
(DIRECT SELECT lever) ................... 148
Transmission positions .................. 148
Automatic transmission emer-
gency mode ....................................... 155
Axle load, permissible (trailer tow-
ing) ...................................................... 384
B
Back button ....................................... 281
Backup lamp
Display message ............................ 251
Replacing bulbs .............................1 19
Bag hook ............................................ 296
Ball coupling
Installing ........................................ 216
Removing ....................................... 218
BAS (Brake Assist System) ................. 67
Battery (SmartKey)
Checking .......................................... 81
Important safety notes .................... 81
Replacing ......................................... 81
Battery (vehicle)
Charging ........................................ 340
Display message ............................ 253
Important safety notes .................. 338
Jump starting ................................. 341
Belt warning ......................................... 49
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 232
Display message ............................ 258
Notes/function .............................. 205
see Active Blind Spot Assist
Blower
see Climate control
Bluetooth
®
Searching for a mobile phone ........2 88
see also Digital Operator's Man-
ual ..................................................2 80Brake
Active Brake Assist with cross-
traffic function ................................. 73
Brake Assist
see BAS (Brake Assist System)
Brake assistance
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 245
Notes ............................................. 380
Brake force distribution
see EBD (electronic brake force
distribution)
Brake linings
Display message ............................ 245
Brakes
ABS ..................................................6 6
Adaptive Brake Assist ...................... 68
BAS .................................................. 67
Brake fluid (notes) ......................... 380
Display message ............................ 240
EBD .................................................. 73
Hill start assist ............................... 140
HOLD function ............................... 178
Important safety notes .................. 163
Maintenance .................................. 164
Parking brake ................................ 159
Ridi ng ti
ps ...................................... 163
Warning lamp ................................. 270
Breakdown assistance
Where will I find...? ........................ 332
see Flat tire
see Towing away
Brightness control (instrument
cluster lighting) ................................... 36
Buttons on the steering wheel ......... 221
C
California
Important notice for retail cus-
tomers and lessees .......................... 29
Calling up a malfunction
see Display messages
Calling up the climate control bar
Multimedia system ........................ 284
6Index
Display messagesPossible causes/consequences andMSolutions
The yellow!warning lamp lights up and th ered F (USAonly)
or ! (Canada only) indicator lamp flashes .
It is no tpossibl eto apply th eelectric parking brak emanually.
XShift th etransmission to position j.
XVisitaqualified specialist workshop .
$(USAonly)
J(Canada only)
Check Brake Fluid
Level
There is no tenough brak eflui din th ebrak efluid reservoir .
In addition ,th e$ (USAonly) or J(Canada only) warning lamp
lights up in th einstrumen tcluste rand awarning tone sounds.
GWARNIN G
The braking effec tmay be impaired.
There is aris kof an accident.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions. Do no tcontinu edrivin g
under any circumstances.
XSecur eth evehicl eagainst rollin gaway (Ypage 158).
XConsult aqualified specialist workshop .
XDo notadd brak efluid .This does no tcorrec tth emalfunction .
#
CheckBrakePadWear
The brak epads/linings hav ereached their wear limit.
US Aonly: th ered $ brakesystem warning lamp is lit while th e
engin eis running.
XVisit aqualified specialist workshop .
G
Inoperative
Oneor mor emain features of th embrace system are malfunctioning .
XVisitaqualified specialist workshop .
ActiveBrakeAssistFunctionsCurrentlyLimitedSee Opera‐tor's Manual
Active Brake Assis tis temporarily inoperative.
Possibl ecauses are:
Rth eradar sensor system is temporarily inoperative, e.g. due to elec -
tromagneti cradiation emitted by nearby TV or radi ostation sor
other source sof electromagneti cradiation
Rth esystem is outside th eoperating temperature range
Rth eon-boar dvoltag eis to olow
Whe nth ecauses state dabov eno longer apply, th edisplay message
disappears.
Active Brake Assis tis operational again .
If th edisplay message does no tdisappear :
XPull overand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 158).
XRestart th eengine.
Display messages24 5
On-board computer and displays
Z
