AUTO lights
Display message ............................ 180
see Lights
Automatic car wash (care) ...............234
Automatic headlamp mode ................ 87
Automatic transmission
Display message ............................ 186 B
Back button ....................................... 202
Backup lamp
Display message ............................ 179
Replacing bulbs ............................... 93
Bag hook ............................................ 212
BAS (Brake Assist System) ................. 59
Battery (SmartKey)
Checking .......................................... 69
Important safety notes .................... 68
Replacing ......................................... 69
Battery (vehicle)
Charging ........................................ 248
Display message ............................ 181
Important safety notes .................. 246
Jump starting ................................. 249
Belt
see Seat belts
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 163
Display message ............................ 183
Notes/function .............................. 150
Blootooth ®
Connecting a different mobile
phone ............................................ 206
Bluetooth ®
Searching for a mobile phone ....... .205
see also Digital Operator's Man-
ual ................................................. .201
Telephony ...................................... 204
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 173
Notes ............................................. 284
Brake force distribution
see EBD (electronic brake force
distribution) Brake lamps
Display message ............................ 178
Brake system
Driving safety systems ..................... 64
Brakes
ABS ................................................. .59
BAS .................................................. 59
Brake fluid (notes) ......................... 284
Braking assistance appropriate to
the situation ..................................... 61
Display messag e............................ 168
EBD .................................................. 63
Hill start assist ............................... 111
HOLD function ............................... 138
Important safety notes .................. 133
Maintenance .................................. 134
Parking brake ................................ 130
Riding tips ...................................... 133
Warning lamp ................................. 192
Braking assistance appropriate to
the situation
Function/note s................................ 61
Breakdown
Towing away .................................. 251
Where will I find...? ........................ 241
see Flat tire
Buttons on the steering wheel ......... 154 C
California Important notice for retail cus-
tomers and lessees .......................... 23
Calling up a malfunction
see Display messages
Car
see Vehicle
Care
Car wash ........................................ 234
Carpets .......................................... 240
Display ........................................... 238
Exterior lights ................................ 237
Gear or selector lever .................... 239
Interior ........................................... 238
Matte finish ................................... 236
Notes ............................................. 234
Paint .............................................. 235
Plastic trim .................................... 238 Index
5
Display messages
Possible causes/consequences and
0050
0050Solutions 0049(USA
only)0024(Canada only)
Parking Brake Inop‐ Parking Brake Inop‐
erative erative The yellow
0024warning lamp lights up. The red 0049(USA only)
or 0024 (Canada only) indicator lamp flashes for about ten seconds
after the electric parking brake has been applied or released. It then
goes out or remains lit.
The electric parking brake is malfunctioning, e.g. because of over-
voltage or undervoltage.
X Rectify the cause of the overvoltage or undervoltage, e.g. by charg-
ing the battery or restarting the drive system.
X Engage or release the electric parking brake.
If it remains impossible to apply or release the electric parking brake:
X Switch off the ignition and turn it back on.
X Engage or release the electric parking brake.
If the electric parking brake still cannot be released:
X Consult a qualified specialist workshop.
If the electric parking brake still cannot be applied: X Visit a qualified specialist workshop. The yellow
0024warning lamp lights up and the red 0049(USA only)
or 0024 (Canada only) indicator lamp flashes.
It is not possible to apply the electric parking brake manually.
X Shift the transmission to position P.
X Visit a qualified specialist workshop. 0027(USA
only)004D(Canada only)
Check Brake Fluid Check Brake Fluid
Level Level There is not enough brake fluid in the brake fluid reservoir.
A warning tone sounds. The
0027(USA only) or 004D(Canada only)
warning lamps in the instrument cluster may also light up.
G WARNING
The braking effect may be impaired.
There is a risk of an accident.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Secure the vehicle against rolling away (Y page 128).
X Consult a qualified specialist workshop.
X Do not add brake fluid. This does not correct the malfunction. 0026
Check Check
Brake
BrakePad
PadWear
Wear The brake pads/linings have reached their wear limit.
X Visit a qualified specialist workshop. 0053
Inoperative Inoperative One or more main features of the mbrace system are malfunctioning.
X Visit a qualified specialist workshop. Display
messages
173On-board computer and displays Z
