2011 MERCEDES-BENZ E-CLASS CABRIOLET brake sensor

ASSYS
TPLUS
see ASSYS TPLUS service interval
display
ASSYST PLUS servic einterval dis-
play Displaying service messages .........285
Hiding service messages ...............285
Notes ............................................. 285
Service messages ..........................284
ATA (Anti-Theft Alarm system)
Activating/deactivating ...................68
ATA (Anti-Theft Alarm system) .........68
Function .......................................... .68
Interior motion sensor .....................69
Switching off the alarm ....................68
Tow-awa yprotectio n........................ 68
ATTENTIO NASSIST
Activating/deactivating .................224
Display message ............................ 244
Function/notes ............................. 194
Audio menu (on-board computer) ....219
AUTO lights Display message ............................ 241
see Lights
Automatic engine start (ECO start/
stop function) .................................... 151
Automatic engine switch-off (ECO
start/stop function) ..........................150
Automatic headlamp mode ..............115
Automatic transmission Accelerator pedal position .............155
Automatic drive program ...............157
Changing gea r............................... 155
Display message ............................ 250
Driving tips .................................... 155
Emergency running mode ..............160
Kickdow n....................................... 156
Manual drive program ....................158
Problem (fault) ............................... 160
Progra mselecto rbutton ................ 156
Pulling away ................................... 149
Releasing the parking lock man-
ually ............................................... 160
Selector leve r................................ 154
Shift range s................................... 157
Starting the engine ........................148
Steering wheel gearshift paddle s... 157
Trailer towing ................................. 156Transmissio
nposition display ........155
Transmissio npositions .................. 155
Automatic transmission emer-
gency runnin gmode ......................... 160
Auxiliary heating Activating/deactivating .................138
Activating/deactivating (on the
centre console ).............................. 138
Display message ............................ 252
Important safety notes ..................137
Problem (display message) ............141
Remote control .............................. 138
Setting ........................................... 229
Setting the departur etime ............ .139
Auxiliary ventilation
Activating/deactivating .................138
Activating/deactivating (on the
centre console ).............................. 138
Problem (display message) ............141
Remote control .............................. 138
Axl eload, permissible (traile rtow-
ing) ...................................................... 345 B
Ba gh ook ............................................ 268
Ball coupling Folding in ....................................... 208
Folding out ..................................... 206
BAS (Brake Assist System) .................62
Basic settings see Settings
BAS PLU S(Brake Assist System
PLUS) .................................................... 62
Battery (key) Checking .......................................... 74
Important safety notes ....................74
Replacing ......................................... 75
Battery (vehicle)
Charging ........................................ 308
Connecting .................................... 308
Disconnecting ................................ 307
Display message ............................ 243
Important safety notes ..................305
Jump starting ................................. 309
Location ......................................... 307
Removing/fitting ........................... 308 Index
5

Belt
see Sea tbelt
Belt force limiter s(activation) ...........39
Belt tensioner Activatio n......................................... 39
Function .......................................... .50
Blind Spo tAssist
Activating/deactivating .................224
Display message ............................ 246
Notes/function .............................. 196
Trailer towing ................................. 198
see Active Blind Spot Assist
Bonnet
Active bonnet (pedestrian protec-
tion) ............................................... 280
Closing .......................................... .282
Display message ............................ 250
Opening ......................................... 281
Boot
Emergency release ..........................81
Important safety guidelines .............79
Locking separatel y........................... 81
Opening (automatically from
inside) .............................................. 81
Opening (automatically from out-
side) ................................................ .80
Boo tlid
Display message ............................ 250
Opening/closing .............................. 79
Opening dimensions ......................343
Boot load (maximum)
see Technical data
Boot separator
Display message ............................ 251
General notes .................................. 92
Opening/closing .............................. 92
Brake Assist System
see BAS (Brake Assist System)
Brake fluid
Display message ............................ 235
Notes ............................................. 336
Brake lamps
Adaptive .......................................... .63
Display message ............................ 239
Brakes
ABS .................................................. 62
BAS .................................................. 62
BAS PLUS ........................................ 62Brake fluid (notes)
.........................336
Display message ............................ 233
Driving tips .................................... 167
Important safety notes ..................167
Parking brake ................................ 166
Warning lamp ................................. 257
Breakdown
see Flat tyre
see Towing away/tow-starting
Bulbs
see Changing bulbs C
Calling up afault
see Display messages
Capacities
see Technical data
Car
see Vehicle
Care
AIRCAP .......................................... 288
Automatic car wash .......................286
Cabriolet soft top ........................... 288
Display ........................................... 291
Draught stop .................................. 289
Exterior lighting ............................. 290
High-pressure cleaner .................... 287
Matt paintwork .............................. 287
Notes ............................................. 285
Paint .............................................. 287
Plastic trim .................................... 291
Reversing camera ..........................290
Seat bel t........................................ 292
Seat cover ..................................... 292
Sensors ......................................... 290
Tai lpipes ....................................... 291
Trim pieces .................................... 292
Wheels ........................................... 287
Wind deflector ............................... 288
Windows ........................................ 289
Wiper blades .................................. 290
Wooden trim .................................. 292
Car key
see Key
Car wash (care) ................................. 286
CD player/CD changer(on-board
computer) .......................................... 2206
Index

Parking lamps
Changing bulbs .............................. 123
Display message ............................ 240
Switching on/off ........................... 114
Parking lamps (changing bulbs) ......123
PARKTRONIC Deactivating/activating .................188
Driving system ............................... 185
Function/notes ............................. 185
Problem (fault) ............................... 189
Sensor range ................................. 186
Trailer towing ................................. 188
Warning displa y............................. 187
PASSENGE RAIRBAG OFF warning
lamp ...................................................... 53
Petrol .................................................. 161
Plastic trim (cleaning instructions) .291
Power windows see Side windows
PRE-SAFE ®
(preventive occupant
safety system) Display message ............................ 235
Operation ........................................ .45
PRE-SAFE ®
Brake (vehicles with
DISTRONIC PLUS) Display message ............................ 236
Function/notes ................................ 66
PRE-SAFE ®
Brake (vehicles with
DISTRONIC PLUS) Switching on/off ........................... 223
Warning lamp ................................. 262
Preventive occupant safety sys-
tem
see PRE-SAFE ®
(preventive occu-
pant safety system)
Program selector button ..................156
Pulling away Automatic transmission .................149
Manual transmission ..................... .149 Q
Qualifie dspecialis tworkshop ...........22 R
Radar sensor system Activating/deactivating .................229
Country overview ........................... 345
Display message ............................ 245
Radio
Selecting astation ......................... 219
see separate operating instructions
Rain closing feature (panorama
sliding sunroof) ................................... 97
Readin glamp ..................................... 120
Rear compartment Setting the airv ents...................... 142
Setting the temperature ................133
Rear-compartment seat bel tsta-
tus indicator ........................................ 49
Rear foglamp Display message ............................ 240
Switching on/off ........................... 116
Rear seat
Display message ............................ 251
Rear-vie wmirror
Anti-dazzle mode (automatic) ........111
Dipping (manual )........................... 109
Rear window blind ............................271
Rear window heating Problem (fault) ............................... 135
Switching on/off ........................... 135
Refuelling
Fuel gauge ....................................... 28
Important safety notes ..................160
Refuelling proces s......................... 163
see Fuel
Releasin gthe parking loc kman-
ually (automatic transmission) ........160
Remote control Auxiliary heating/ventilatio n.......... 138
Changing the batteries (auxiliary
heating) ......................................... 140
Garage door opener .......................275
Replacing the battery (auxiliary
heatin gremote control) .................... 140
Reserve (fue ltank)
see Fuel
Reserve fuel
Display message ............................ 243
Warning lamp ................................. 260 Index
15

Residual heat (climate control)
........136
Restrain tsystem
see SRS (Supplemental Restraint
System)
Rev counter ........................................ 212
Reverse gear Engaging (automatic transmis-
sion) ............................................... 154
Engaging (manual transmission) ....154
Reversing camera
Cleaning instructions .....................290
Function/notes ............................. 192
Reversing lamp (display message) ..240
Roll bar Display message ............................ 236
Operation ........................................ .44
Rolle rblind
see Roller sunblind
Roller sunblind
Panorama sliding sunroof ................97
Rea rwindow .................................. 271
Roof
see Soft top
Roof load (maximum)
see Technical data
Route
see Route guidance (navigation)
Route guidance (navigation) ............218 S
Safety Childre ninthe vehicle ..................... 51
Child restraint systems ....................51
Safety systems
see Driving safety systems
Seat
Seat backres tdisplay message .....251
Seat belt
Adjusting the driver's and front-
passenger sea tbelt ......................... 49
Belt force limiter .............................. 50
Belt tensioner .................................. 50
Cleaning ......................................... 292
Display message ............................ 236
Fastening ......................................... 47
Important safety guidelines .............46
Rea rseat belt status indicator .........49 Releasing
......................................... 49
Switching bel tadjustment on/off
(on-board computer) ......................230
Warning lamp (function) ................... 49
Seat belts
Warning lamp ................................. 255
Seats
Adjusting (electrically). ..................102
Adjusting (manually and electri-
cally) .............................................. 102
Adjusting the 4-way lumba rsup-
por t................................................ 105
Adjusting the head restraint ..........103
Cleaning the cover .........................292
Correct driver's sea tposition ........100
Folding the backrests forward/
back ............................................... 104
Important safety notes ..................101
Multicontour sea t.......................... 105
Seat heating problem ....................106
Seat ventilation problem ................107
Storing settings (memory func-
tion) ............................................... 112
Switching AIRSCAR Fon/off .......... 107
Switching sea theating on/off .......106
Switching the sea tventilation on/
off .................................................. 106
Sensors (cleaning instructions) .......290
Service see ASSYST PLUS service interval
display
Service menu (on-board computer) .224
Service products Brake fluid ..................................... 336
Coolant (engine) ............................ 337
Engine oil ....................................... 335
Fuel ................................................ 334
Important safety notes ..................333
Settings
Factory (on-board computer) .........231
On-board computer .......................224
Settin gthe air distribution ...............133
Settin gthe airflow ............................ 134
Sidebag ................................................ 43
Side windows Convenience closing ........................84
Convenience opening ......................83
Important safety notes ....................8216
Index

In wintry driving conditions, alwaysu
se
winter tyres (M+S tyres) and if necessary,
snow chains. Only in this way willt he driv-
ing safety systems describe dinthis section
work as effectively as possible. ABS (Anti-loc
kBraking System)
Important safety notes i
Observe the "Important safety notes" sec-
tio n(Ypage 61).
ABS regulate sbrake pressure in such away
tha tthe wheels do not lock when you brake.
This allowsy ou to continue steering the vehi-
cle when braking.
ABS works from aspeed of about 8km/h
upwards, regardless of road-surface condi-
tions. ABS works on slippery surfaces, even
when you only brake gently. G
WARNING
If ABS is faulty, the wheels could lock when
braking. This limits the steerability of the vehi-
cle when braking and the braking distance
may increase.
If ABS is deactivated due to amalfunction,
then BAS and ESP are also deactivated. There
is an increased risk of your vehicle skidding in
certain situations.
You should always adapt your driving style to
suit the prevailing road and weather condi-
tions.
Braking If ABS intervenes when braking, you will feel
ap ulsing in the brake pedal.
X If ABS intervenes: continue to depress the
brake pedal with force until the braking sit-
uation is over.
X To make afull brake application:
depress the brake pedal with full force.
The pulsating brake pedal can be an indica-
tion of hazardous road conditionsa nd func-tions as
areminder to take extrac are while
driving. G
WARNING
Do not depress the brake pedal several times
in quick succession (pumping). Pumping the
brake pedal reduces the braking effect.Y ou
might otherwise not be able to stop the vehi-
cle in time and could cause an accident.
Depress the brake pedal firmly and smoothly. BAS (Brake Assist)
i Observe the "Important safety notes" sec-
tion (Y page 61).
BAS operates in emergenc ybraking situa-
tions. If you depress the brake pedal quickly,
BAS automatically boosts the braking force,
thus shortening the stopping distance.
X Keep the brake pedal firmly depressed until
the emergenc ybraking situation is over.
ABS prevent sthe wheels from locking.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated. G
WARNING
If BAS has malfunctioned, the braking system
remains available with full brake boosting
effect .However, braking force is not auto-
matically increased in emergenc ybraking sit-
uations and the stopping distance may
increase. BAS PLUS (Brake Assist System
PLUS)
BAS PLUS is only available on vehicles with
DISTRONIC PLUS.
i Observe the "Important safety notes" sec-
tion (Y page 61).
BAS PLUS provides braking assistance in haz-
ardous situations at speeds of over
30 km/ha nd uses rada rsensor technology
to assess the traffic situation. 62
Driving safet
ysystemsSafety

With the help of the radar sensor system, BAS
PLUS can detect obstacles that are in the
path of your vehicle for an extended period of
time.
At speeds up to approximately 70 km/h, BAS
PLUS may also detect stationar yobstacles,
for example, stopped or parked vehicles.
Should yo uapproach an obstacl eand BAS
PLUS ha sdetected ariskofc ollision, BAS
PLUS calculates the braking force necessary
to avoid arear-en dcollision. Should you apply
the brakes forcefully,B AS PLUS can auto-
matically increase the braking force to alevel
suitable for the traffic conditions.
If BAS PLUS demands particularly high brak-
ing force, preventative passenger protection
measures (PRE-SAFE ®
)a re activated simul-
taneously.
X Keep the brake pedal depressed until the
emergenc ybraking situation is over.
ABS prevent sthe wheels from locking.
The brakes will work normally again if:
R you release the brake pedal.
R there is no longer any danger of arear-end
collision.
R no obstacle is detected in front of your
vehicle.
BAS PLUS is then deactivated.
The radar sensor system is switched off auto-
matically in the vicinit yofradio telescope
facilities (Y page 345).
Vehicles without COMAND and anavigation
system and vehicles for Australia: the radar
sensor system and on-board computer must
be switched off in the vicinit yofradio tele-
scope facilities (Y page 229).
For BAS PLUS to assist you when driving, the
radar sensor system must be switched on and
operational; see "Radar sensor system" in the
index. G
WARNING
BAS PLUS cannot alwaysc learly identify
object sand complex traffic situations. BAS
PLUS cannot intervene in these cases. There is
arisk of an accident .Always pay
careful attention to the traffic situation and be
ready to brake.
In particular, the detection of obstacles can
be impaired if there is:
R dirt on the sensors or anything else cover-
ing the sensors
R sno worh eavy rain
R interference by other radar sources
R the possibilit yofstrong radar reflections,
for example in multi-storey car parks
R an arrow vehicle travellin ginfront,e.g. a
motorbike
R av ehicle travellin ginfront on adifferent
line G
WARNING
BA SP LUS does not react:
R to people or animals
R to oncomin gvehicles
R to crossin gtraffic
R when cornering
As aresult ,BAS PLUS may not intervene in
critical situations .There is arisk of an acci-
dent. Always pay careful attention to the traf-
fic situation and be ready to brake.
Following damage to the front end of the vehi-
cle, have the configuration and operation of
the radar sensors checked at aqualified spe-
cialist workshop. This also applies to colli-
sions at slow speeds where there is no visible
damage to the front of the vehicle.
If BAS PLUS is not available due to amalfunc-
tion in the radar sensor system, the brake
system remains available with full brake
boosting effect and BAS. Adaptive brake lamps
i Adaptive brake lamps are only available in
certain countries.
If you brake sharply from aspeed of more
than 50 km/h or if braking is assisted by BAS Driving safety systems
63Safety Z

driving style to the differen
thandling charac-
teristics.
X Observ ethe note sonw arning and indicator
lamps (Y page 257) as well as display mes-
sages ( Ypage 234). ADAPTIV
EBRAKE
ADAPTIV EBRAKE enhances braking safety
and offers increased braking comfort. In addi-
tio ntot he brakin gfunction, ADAPTIVE BRAKE
alsoh as the HOLD function (Y page184) and
hills tart assist (Y page149). For further
information, see Driving tips (Y page167). PRE-SAFE
®
Brake
PRE-SAFE ®
Brake is only available in vehicles
with DISTRONIC PLUS.
i Observe the "Important safety notes" sec-
tion (Y page61).
PRE-SAFE ®
Brake can help you to minimise
the risk of afrontal collision with avehicle
ahead or reduce the effects of such acolli-
sion. If PRE-SAFE ®
Brake has detected arisk
of collision, you willbew arned visuallya nd
acoustically as wellasbya utomatic braking.
PRE-SAFE ®
Brake cannot prevent acollision
without youri ntervention.
Thi sfun ctio nwill issue awarnin gats peeds of
aroun d30k m/horm orei f:
R for aperiod of several seconds ,the dis-
tance to the vehicle in front is too shor tfor
the speed at which you are travelling. The
· distance warning lamp then lights up
in the instrument cluster.
R you are rapidly approaching the vehicle in
front.Ani ntermittent warning tonew ill
then sound and the ·distance warning
lamp will light up in the instrument cluster. X
Brake immediately in order to increase the
distance from the vehicle in front.
or
X Take evasive action provided it is safe to do
so.
If the driver and passengers have fastened
their seat belts, PRE-SAFE ®
Brake can also
can also perform the following at speeds of
above approximately 30 km/h:
R brake the vehicle automatically from a
speed of up to approximately 200 km/h
R trigger preventative passenger protection
measures (PRE-SAFE ®
)( Ypage 45)
Due to the nature of the system, particularly
complicated driving conditions may cause
unnecessary warnings or the unnecessary
intervention of PRE-SAFE ®
Brake. To end this,
you can either depress the accelerator pedal
further, activate kickdown or release the
brake pedal.
The braking action of PRE-SAFE ®
Brake is
ended automatically if:
R you drive slower than approximately
15 km/h.
R you manoeuvre to avoid the obstacle.
R there is no longer any danger of arear-end
collision.
R there is no longer an obstacle detected in
front of your vehicle.
With the help of the radar sensor system,
PRE-SAFE ®
Brake can detect obstacles that
are in front of your vehicle for an extended
period of time.
At speeds up to approximately 70 km/h,
PRE-SAFE ®
Brake may also detect stationary
obstacles, for example stopped or parked
vehicles.
If you approach an obstacle and PRE-SAFE ®
Brake detect sarisk of acollision, the system
will initially alert you both visually and acous-
tically. If you do not brake or take evasive
action, the system will warn you by automat-
ically braking the vehicle gently. If there is an
increased risk of collision, preventative 66
Driving safety systemsSafety

passenger protection measures (PRE-SAFE
®
)
are activated (Y page 45). If the risk of colli-
sion remains and you do not brake, tak eeva-
sive action or accelerate significantly, the
vehicle may perfor mautomatic emergency
braking .Automatic emergenc ybraking is not
performed until immediately prio rtoanacci-
dent that can no longer be avoided. G
WARNING
Even if PRE-SAFE ®
Brake slows the vehicle
before an imminent rear-end collision, the
system cannot avert acollision without the
intervention of the driver. There is arisk of an
accident .Brake according to the situation or
take evasive action. Delayed intervention by
the driver can lead to an accident. G
WARNING
PRE-SAFE ®
Brake cannot alwaysc learly iden-
tify object sand complex traffic conditions.
In these cases, PRE-SAFE ®
Brake may:
R give an unnecessary warning and then
brake the vehicle
R not give awarning or intervene
There is arisk of an accident .Always pay par-
ticular attention to the traffic situation and be
ready to brake, especially if PRE-SAFE ®
Brake
warns you. Terminat ethe intervention in a
non-critical drivin gsituation.
In particular, the detection of obstacles can
be impaired if there is:
R dirt on the sensors or anything else cover-
ing the sensors
R sno worh eavy rain
R interference by other radar sources
R the possibilit yofstrong radar reflections,
for example in multi-storey car parks
R an arrow vehicle travellin ginfront,e.g. a
motorbike
R av ehicle travellin ginfront on adifferent
line G
WARNING
PRE-SAFE ®
Brak edoes not react:
R to people or animals
R to oncomin gvehicles
R to crossin gtraffic
R when cornering
As aresult ,PRE-SAFE ®
Brak emay not give
warnings or intervene in critical situations.
There is arisk of an accident .Always pay
careful attention to the traffic situation and be
ready to brake.
In order to maintain the appropriate distance
to the vehicle in front and thus prevent acol-
lision ,you must apply the brakes yourself.
X To activate/deactivate: activate or deac-
tivate PRE-SAFE ®
Brak eint he on-board
computer (Y page 223).
The Ä symbol appears in the multifunc-
tion display as long as the HOL Dfunction
is no tactivated (Y page 184).
On vehicles wit hparking guidance, the
Ä symbol is displayed when Pis
engaged or you are driving faste rthan
35 km/h.
The radar sensor system is switched off auto-
matically in the vicinity of radio telescope
facilities (Y page 345).
Vehicles without COMAND and anavigation
system and vehicles for Australia: the radar
sensor system and on-board computer must
be switched off in the vicinity of radio tele-
scope facilities (Y page 229).
For PRE-SAFE ®
Brake to assist you when driv-
ing, the radar sensor system must be
switched on (Y page 229) and be opera-
tional.
Following damage to the front end of the vehi-
cle, have the configuration and operation of
the radar sensors checked at aqualified spe-
cialist workshop. This also applies to colli-
sions at slow speeds where there is no visible
damage to the front of the vehicle. Driving safety systems
67Safety Z