2017 MERCEDES-BENZ E-Class CABRIOLET Brake fluid sensor

Beltsee Seat belts
Blind Spot Assist
Activating/deactivating (on-
board computer) ............................ 198
Display message ............................ 215
Notes/function .............................. 180
see Active Blind Spot Assist
Bluetooth
®
Connecting another mobile
phone ............................................ 239
Searching for a mobile phone ........ 238
see also Digital Operator's Man-
ual .................................................. 234
Telephony ...................................... 237
Brake Assist
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 205
Notes ............................................. 315
Brake force distribution
see EBD (electronic brake force
distribution)
Brake lamps
Display message ............................ 211
Brakes
ABS .................................................. 62
Adaptive Brake Assist ...................... 66
BAS .................................................. 62
BAS PLUS with Cross-Traffic
Assist ............................................... 62
Brake fluid (notes) ......................... 315
Display message ............................ 203
HOLD function ............................... 162
Important safety notes .................. 148
Maintenance .................................. 149
Parking brake ................................ 145
Riding tips ...................................... 148
Warning lamp ................................. 226
Breakdown
Where will I find...? ........................ 270
see Flat tire
Brightness control (instrument
cluster lighting) ................................... 33
Bulbs
see Replacing bulbs
C
CaliforniaImportant notice for retail cus-
tomers and lessees .......................... 25
Calling up a malfunction
see Display messages
Car
see Vehicle
Care
360° camera ................................. 267
AIRCAP .......................................... 265
Car wash ........................................ 262
Carpets .......................................... 269
Display ........................................... 268
Exhaust pipe .................................. 267
Exterior lights ................................ 266
Gear or selector lever .................... 268
Interior ........................................... 268
Matte finish ................................... 264
Notes ............................................. 262
Paint .............................................. 263
Plastic trim .................................... 268
Power washer ................................ 263
Rear view camera .......................... 267
Roof lining ...................................... 269
Seat belt ........................................ 269
Seat cover ..................................... 268
Sensors ......................................... 267
Soft top .......................................... 264
Steering wheel ............................... 268
Trim pieces .................................... 268
Washing by hand ........................... 263
Wheels ........................................... 265
Wind deflector ............................... 265
Wind screen ................................... 265
Windows ........................................ 266
Wiper blades .................................. 266
Wooden trim .................................. 268
Cargo tie down rings ......................... 242
CD
see also Digital Operator's Man-
ual .................................................. 234
CD player (on-board computer) ........ 194
Central locking
Automatic locking (on-board com-puter) ............................................. 200
Locking/unlocking (SmartKey) ........ 73
Index5

Seat beltsAdjusting the driver's and front-
passenger seat belt .........................4 5
Automatic comfort-fit feature .......... 44
Cleaning ......................................... 269
Correct usage .................................. 43
Fastening ......................................... 43
Important safety guidelines ............. 42
Introduction ..................................... 41
Releasing ......................................... 44
Switching belt adjustment on/off
(on-board computer) ...................... 201
Warning lamp ................................. 225
Warning lamp (function) ................... 45
Seats
Adjusting (electrically) ..................... 97
Adjusting the 4-way lumbar sup-
port ................................................ 100
Adjusting the head restraint ............ 98
Adjusting the multicontour seat ..... 100
Cleaning the cover ......................... 268
Correct driver's seat position ........... 96
Folding the backrests forward/
back ................................................. 99
Important safety notes .................... 96
Overview .......................................... 96
Seat backrest display message ..... 222
Seat heating .................................. 100
Seat heating problem .................... 102
Storing settings (memory func-
tion) ............................................... 108
Switching AIRSCARF on/off .......... 102
Switching seat heating on/off ....... 100
Switching seat ventilation on/
off .................................................. 101
Section
Trunk ............................................... 80
Securing cargo .................................. 242
Selector lever
Cleaning ......................................... 268
Sensors (cleaning instructions) ....... 267
Service menu (on-board com-
puter) .................................................. 198
Service message
see ASSYST PLUS
Service products
Brake fluid ..................................... 315
Coolant (engine) ............................ 316 Engine oil ....................................... 315
Fuel ................................................ 313
Important safety notes .................. 312
Refrigerant (air-conditioning sys-
tem) ............................................... 317
Washer fluid ................................... 316
Setting the air distribution ............... 122
Setting the airflow ............................ 123
Setting the date
/time format
see also Digital Operator's Man-
ual .................................................. 234
Setting the language
see also Digital Operator's Man-
ual .................................................. 234
Setting the time
see also Digital Operator's Man-
ual .................................................. 234
Settings
Factory (on-board computer) ......... 201
On-board computer ....................... 198
Side impact air bag ............................. 47
Side marker lamp (display mes-
sage) ................................................... 211
Side windows
Cleaning ......................................... 266
Important safety information ........... 82
Opening/closing .............................. 83
Opening/closing (all) ....................... 83
Problem (malfunction) ..................... 85
Resetting ......................................... 84
Reversing feature ............................. 82
SIRIUS services
see also Digital Operator's Man-
ual .................................................. 234
SmartKey
Changing the battery ....................... 76
Changing the programming ............. 74
Checking the battery ....................... 76
Display message ............................ 223
Door central locking/unlocking ....... 73
Important safety notes .................... 73
Loss ................................................. 77
Mechanical key ................................ 75
Opening/closing soft top ................. 87
Overview .......................................... 73
Positions (ignition lock) ................. 128
Problem (malfunction) ..................... 77
Starting the engine ........................ 130
16Index

Display messagesPossible causes/consequences andMSolutions
$(USA
only)
J( Canada
only)
Check Brake Fluid
Level
There is no tenough brak eflui din th ebrak efluid reservoir .
In addition ,th e$ (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 144).
XConsult aqualified specialist workshop .
XDo notadd brak efluid .This does no tcorrec tth emalfunction .
#
CheckBrakePadWear
The brak epads/linings hav ereached their wear limit.
XVisit aqualified specialist workshop .
G
mbrace Inoperative
Oneor mor emain features of th embrace system are malfunctioning .
XVisitaqualified specialist workshop .
Collision Preven‐tionAssist Plu sCurrently Unavaila‐ble See Operator' sManual
COLLISION PREVENTION ASSIST PLU Sis temporarily no toperational.
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 .
Rthesystem 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.
COLLISION PREVENTION ASSIST PLU Sis 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 144).
XRestart th eengine.
Collision Preven ‐tionAssist Plu sInoperative
COLLISION PREVENTION ASSIST PLU Sis temporarily inoperative due
to amalfunction .Adaptive Brake Assis tmay also hav efailed.
XVisit aqualified specialist workshop .
PRE-SAFE
Inoperative SeeOperator'sManual
Importan tfunction sof PRE-SAF E®havefailed. Al lother occupant
safet ysystems ,e.g. air bags ,remain available.
XVisit aqualified specialist workshop .
Display messages205
On-board computer and displays
Z