2012 MERCEDES-BENZ E-CLASS CABRIOLET ECU

Emergency spare wheel
Important safety note s.................. 363
Points to remember .......................363
Storage location ............................ 363
Technical data ............................... 364
Emergency unlocking
Vehicle ............................................. 84
Engine
Display message ............................ 259
ECO start/stop function ................162
Engine number ............................... 371
Jump-starting ................................. 331
Running irregularl y......................... 165
Starting problems ..........................165
Starting the engine with the key ....160
Starting with KEYLESS GO .............161
Stopping ........................................ 178
Tow-starting (vehicle) ..................... 335
Warning lamp (engine diagnos-
tics) ............................................... 280
Engine electronics
Notes ............................................. 369
Problem (fault) ............................... 165
Engine oil
Additives ........................................ 376
Checking the oil level ..................... 308
Checking the oil level using the
dipstick .......................................... 309
Display message ............................ 261
Filling capacity ............................... 376
Notes about oil grades ................... 375
Notes on oil level/consumption ....308
Topping up ..................................... 309
Viscosity ........................................ 376
Environmental protection
Returning an end-of-life vehicle .......21
ESP ®
(Electronic Stability Pro-
gram) Deactivating/activating .................240
Deactivating/activating (notes) .......67
Display message ............................ 250
ETS .................................................. 67
Function/notes ................................ 67
Important safety guidelines .............67
Trailer stabilisatio n.......................... 68
Warning lamp ................................. 278
ETS (Electronic Traction System) ....... 67Exhaus
ttail pipe (cleaning instruc-
tions) .................................................. 317
Exterior lighting Settings options ............................ .122
see Lights
Exterior mirrors
Adjusting ....................................... 117
Anti-dazzle mode (automatic) ........119
Folding in/ou t(automatically) .......118
Folding in/ou t(electrically) ...........118
Folding in whe nlocking (on-board
computer) ...................................... 247
Out of position (troubleshooting) ...118
Parking position ............................. 119
Resetting ....................................... 118
Storing settings (memory func-
tion) ............................................... 120 F
Faul tmessage
see Display messages
Filler cap
see Fuel filler flap
Fire extinguisher ............................... 323
First-aid kit ......................................... 322
Fitting awheel
Removing awheel .......................... 349
Fitting wheels
Fitting awheel ............................... 349
Lowering the vehicle ......................350
Raising the vehicle .........................348
Securing the vehicle against roll-
ing away ........................................ 347
Flat tyre
MOExtended tyres .........................324
Preparing the vehicle .....................324
TIREFIT kit ...................................... 325
Floormat ............................................ .303
Foglamps Extended range .............................. 129
Switching on/off ........................... 124
Frequencies
Garage door opene r....................... 299
Mobile phone ................................. 369
Two-way radio ................................ 369
Front foglamps
Display message ............................ 25710
Index

Instrumen
tcluster
Overview .................................. 30, 229
Settings ......................................... 242
Warning and indicator
lamps ...................................... .32, 275
Instrument cluster lighting ..............230
Intelligen tLight System
Activating/deactivatin g................. 243
Display message ............................ 258
Overview ........................................ 128
Setting the dipped-bea mhead-
lamps for driving on the right/left .243
Interior lighting ................................. 131
Automatic control system ..............131
Delayed switch-off (on-board
computer) ...................................... 245
Emergency lighting ........................132
Manual control ............................... 132
Overview ........................................ 131
Reading lamp ................................. 131
Interior motion sensor ........................72
ISOFIX child seat securing system ....57 J
Jack Storage location ............................ 323
Using ............................................. 348
Jump start (engine)
see Jump starting (engine)
Jump starting (engine) ......................331 K
Key Changing the battery .......................79
Checking the battery .......................79
Convenience closing feature ............90
Convenience opening feature ..........90
Display message ............................ 274
Door central locking/unlocking .......77
Emergency key element ................... 78
Important safety notes ....................76
Loss ................................................. 81
Modifying the programming .............78
Opening/closing soft top .................94
Positions (ignition lock) .................159Problem (malfunction)
.....................81
Starting the engine ........................160
KEYLESS-GO
Convenience closing ........................90
Display message ............................ 274
Locking ............................................ 77
Start/Stop button .......................... 159
Starting the engine ........................161
Unlocking ......................................... 77
Keyp ositions
Key ................................................ 159
KEYLESS GO .................................. 159
Kickdown
Driving tips .................................... 169
Manual drive program ....................172
Kneebag ............................................... 45 L
Lamps see Warning and indicator lamps
Lane Keeping Assist
Activating/deactivating .................241
Display message ............................ 264
Function/informatio n.................... 212
Lane package ..................................... 210
Lashing eyelets ................................. 289
Licence plate lamp (display mes-
sage) ................................................... 257
Lighting see Lights
Lights
Activating/deactivating the Intel-
ligent Ligh tSystem ........................ 243
Activating/deactivating the inte-
rior lighting delayed switch-off .......245
Active light function .......................128
Automatic headlamp mode ............123
Cornering light function .................128
Dipped-bea mheadlamps ............... 124
Driving abroad ............................... 122
Foglamps ....................................... 124
Foglamps (extended range) ...........129
Hazard warning lamps ...................127
Headlamp flasher ........................... 127
Headlamp range ............................ 126
Ligh tswitc h................................... 123
Main-beam headlamps ................... 127 12
Index

Turn signal
see Turn signals
Turn signals
Changing bulb s(front) ................... 135
Switching on/off ........................... 126
TV
Operating (on-board computer) .....237
see Separate operating instructions
Two-way radio
Frequencies ................................... 369
Installatio n..................................... 369
Transmission output (maximum) .... 369
Type identification plate
see Vehicle identification plate
Tyre pressure
Display message ............................ 269
Not reached (TIREFIT) ....................327
Reached (TIREFIT) ..........................327
Recommended ............................... 343
Tyre pressure loss warning
Important safety notes ..................344
Restarting ...................................... 345
Tyres
Changing awheel .......................... 346
Checking ........................................ 341
Direction of rotatio n...................... 346
Display message ............................ 269
Important safety notes ..................340
MOExtended tyres .........................342
Replacing ....................................... 346
Service life ..................................... 341
Storing ........................................... 346
Tyr esize (data) .............................. 350
Tyr etread ...................................... 341
see Flat tyre U
Unladen weight ................................. 378
Unlocking Emergency unlocking .......................84
From inside the vehicle (central
unlocking button) ............................. 83 V
Vanity mirror (in sun visor) ..............293
Variable SPEEDTRONIC see SPEEDTRONIC
Vehicle
Correct use ...................................... 24
Data acquisition ............................... 24
Display message ............................ 270
Electronics ..................................... 369
Equipment ....................................... 22
Implied warranty .............................. 24
Individua lsettings .......................... 242
Leaving parked up .........................179
Locking (in an emergency) ...............84
Locking (key )................................... 77
Lowering ........................................ 350
Pulling away ................................... 161
Raising ........................................... 348
Registration ..................................... 24
Securing from rolling away ............347
Towing away .................................. 333
Tow-starting ................................... 333
Transporting .................................. 335
Unlocking (in an emergency) ...........84
Unlocking (key )................................ 77
Vehicle data ................................... 378
Vehicle data ....................................... 378
Vehicle dimensions ...........................378
Vehicle emergency locking ................84
Vehicle identification number see VIN
Vehicle identification plate ..............371
Vehicle tool kit .................................. 323
Vehicle weights ................................. 378
Video Operating the DVD ......................... 237
VIN ...................................................... 371 W
Warning and indicator lamps ABS ................................................ 277
Brakes ........................................... 277
Distance warning signa l................. 283
ESP ®
.............................................. 278
ESP ®
OFF ....................................... 279
Fuel tank ........................................ 281 Index
19

If there is an even higherr
ate of vehicle decel-
eration or acceleratio ninalongitudinal direc-
tion, the front airbags are also deployed.
Your vehicle has adaptive, two-stage front air-
bags. The airbag control unit evaluates vehi-
cle deceleration or acceleration in the event
of a collision. In the firs tdeployment stage,
the fron tairbag is filled with enough propel-
lant gas to reduce the risk of injuries. The
front airbag is fully deployed if a second
deploymen tthreshold is reached within a few
milliseconds.
The belt tensioner and airbag triggering
thresholds are variable and are adapted to the
rate of deceleration or acceleration of the
vehicle. This process is pre-emptive in nature.
The triggering process must take place in
good time at the start of the collision.
The rate of vehicle deceleration or accelera-
tion and the direction of the force are essen-
tially determined by:
R the distribution of forces during the colli-
sion
R the collision angle
R the deformation characteristics of the vehi-
cle
R the characteristics of the object with which
the vehicle has collided
Factors which can only be seen and measured
after a collision has occurred do not play a
decisive role in the deployment of an airbag,
nor do they provide an indication of airbag
deployment.
The vehicle may be deformed significantly,
e.g. the bonnet or the wing, without an airbag
being deployed. This is the case if only parts
which are relatively easily deformed are affec-
ted and the rate of deceleration is not high.
Conversely, airbags may be deployed even
though the vehicle suffers only minor defor-
mation. This is the case if, for example, very
rigid vehicle parts such as longitudinal body
members are hit, and sufficient deceleration
occurs as a result. i
The belt tensioners can only be triggered
if the seat belt tongues are correctly
engaged in the seat belt buckles.
i Not all airbags are deployed in an acci-
dent. The different airbag systems work
independently of each other.
How the airbag system works is deter-
mined by the severity of the accident detec-
ted, especially the vehicle deceleration or
acceleration, and the apparent type of acci-
dent:
R head-on collision
R side impact
R rear impact
R Cabriolet: overturn Airbags
Important safety notes G
WARNING
Airbags provide additional protection; they
are not, however, a substitute for seat belts.
Observe the following notes to reduce the risk
of serious or even fatal injury caused by airbag
deployment:
R all vehicle occupants –inparticular, preg-
nant women – must wear their seat belt
correctly at all times and lean back against
the backrest, which should be positioned
as close to the vertical as possible. The
head restraint must support the back of the
head at about eye level.
R always secure childre nless than
1.50mt all or unde r12years of age in suit-
able child restraint systems.
R all vehicle occupants must select a seat
position that is as far away from the airbag
as possible. The driver's seat position must
allow the vehicle to be driven safely. The
driver's chest should be as far away from
the centre of the driver's airbag cover as
possible. 42
Occupant safetySafety

R
move the front-passenger seat as far back
as possible. This is especially important if
you have secured a child in a child restraint
system on the front-passenger seat.
R vehicle occupants –inparticular, children
–m ust no tlean their heads in the area of
the window where:
- Coupé: the sidebag/windowbag
deploys.
- Cabriolet: the sidebag/headbag
deploys.
R rearward-facing child restraint systems
must not be fitted to the front-passenger
seat unless the front-passenger airbag has
been disabled. On the front-passenger
seat, the front-passenger airbag is disabled
if a child restraint system with a trans-
ponder for automatic child seat recognition
is fitted to the front-passenger seat in a
vehicle equipped with automatic child seat
recognition. The 4PASSENGER AIRBAG
OFF indicator lamp must be continuously
lit.
If the front-passenger seat of your vehicle
does not have automatic child seat recog-
nition, or your rearward-facing child
restraint system does not have a trans-
ponder for automatic child seat recogni-
tion, children must be secured in a child
restraint system on a suitable seat in the
rear. Secure children in a child restraint
system on a suitable rear seat. If you secure
a forward-facing child restraint system to
the front-passenger seat, you must move
the front-passenger seat as far back as pos-
sible.
R make sure there are no heavy or sharp-
edged objects in the pockets of clothing.
R do not lean forwards, e.g. over the cover of
the driver's/front-passenger front airbag,
particularly when the vehicle is in motion.
R do not put your feet on the dashboard.
R only hold the steering wheel on the outside.
This allows the airbag to be fully deployed.
You could be injured if the airbag is deployed and you are holding the inside of
the steering wheel.
R do not lean on the doors/rear sidewalls
from the inside.
R make sure that there are no people, ani-
mals or objects between the vehicle occu-
pants and the area where the airbags are
deployed.
R do not place any objects between the seat
backrest and the door.
R do not hang any hard objects, e.g. coat
hangers, on the grab handles or coat hooks.
R do not attach accessories such as cuphold-
ers to the doors/rear sidewalls.
It is not possible to rule out a risk of injury
being caused by an airbag, due to the high
speed at which the airbag must be deployed. G
WARNING
Airbag functionality can only be assured if the
following parts are not covered and no badges
or stickers are attached to them:
R padded steering wheel boss
R kneebag cover below the steering column
R front-passenger airbag cover
R outer side of fron tseat bolsters
R side trim next to the rear seat backrest
R Cabriolet: door trim G
WARNING
When an airbag deploys, a small amount of
powder is released. The powder may cause
short-term breathing difficulties to persons
suffering from asthma or other pulmonary
conditions.
In order to prevent potential breathing diffi-
culties, you should leave the vehicle as soon
as it is safe to do so. You can also open the
window to allow fresh air to enter the vehicle
interior. The powder does not constitute a
health hazard and does not indicate that there
is a fire in the vehicle. Occupant safety
43Safety Z

If the seat belts are not released:
X
Move the backrest or seat back slightly, but
only when the vehicle is stationary.
The belt pretensioning is reduced and the
locking mechanism is released.
More information abouts eat belt adjustment,
a convenience function integrated into PRE-
SAFE ®
, can be found under "Seat belt adjust-
ment" (Y page 51). Seat belts
Important safety notes G
WARNING
A seat belt which is not worn correctly, or
which has not been engaged in the seat belt
buckle correctly, cannot provide the intended
level of protection. Under certain circumstan-
ces, this could cause severe or even fatal inju-
ries in the event of an accident.
Therefore, make sure that all occupants —in
particular, pregnan twomen —wear their seat
belts correctly at all times.
R The seat belt must fit snugly on your body
and must not be twisted.Therefore, avoid
wearing bulky clothing, e.g. a winter coat.
The shoulder section of the belt must be
routed across the centre of your shoulder
—onn o account across your neck or under
your arm —and pulled tight against your
uppe rbody. The lap belt must always pass
across your lap as low down as possible, i.e.
over your hip joints —not across your abdo-
men. If necessary, push the seat belt
slightly downwards and adjust it by pulling
it in the direction the seat belt retracts.
R Do not route the seat belt strap over sharp
or fragile objects. Please make sure that
such objects are not on or in your clothing,
e.g. spectacles, pens or keys etc. The seat
belt strap could become damaged and tear
during an accident and you or other vehicle
occupants could be injured. R
Only one person should use each seat belt
at any one time. Children must never travel
sitting on the lap of another occupant. The
child will not be secured in the event of an
accident, heavy braking or sudden change
of direction .This may result in the child or
other occupants being seriously or fatally
injured.
R Persons under 1.50 mtall cannot wear the
seat belts correctly. For this reason secure
persons less than 1.50 m tall in specially
designed, suitable restraint systems.
R Children unde r1.50 mtall and younger
than twelve years of age canno twear the
seat belts correctly. For this reason secure
them in special suitable child restraint sys-
tems installed on a suitable seat. Additional
information can be found in the Operating
Instructions in the chapter "Safety", "Chil-
dren in the Vehicle". Observe the installa-
tion instructions of the child restraint sys-
tem manufacturer.
R Do not secure an object with a seat belt if
the seat belt is also being used by one of
the vehicle's occupants. G
WARNING
The seat belt does not offer the intended level
of protection unless the backrest is almost
vertical. Under certain circumstances, this
could cause severe or even fatal injuries in the
event of an accident.
Before starting a journey, make sure that the
seat is properly adjusted and that the back-
rest is almost vertical. G
WARNING
Ad irty or damaged seat belt or one that has
been modified or subjected to a load in an
accident no longer offers the intended level of
protection. Under certain circumstances, this
could cause severe or even fatal injuries in the
event of an accident.
For this reason, chec kregularly that the seat
belts are not damaged or dirty. Occupant safety
49Safety
Z

Example: Coupé
X Press release button ?on belt buckle =.
X Slide belt tongue ;back to belt sash
guide :.
Belt warning for the driver and front
passenger The
7 seatbelt warning lamp in the instru-
ment cluster is a reminder for all occupants
to fasten their seat belts. It may light up con-
tinuously or flash. In addition, there may be a
warning tone.
The 7 seat belt warning lamp goes out and
the warning tone ceases when the driver and
the fron tpassenger have fastened their seat
belt.
For certain countries only: regardless of
whether the driver and th efront passenger
have fastened their seat belts, the 7seat
beltw arning lamp lights up for six seconds
after the engine is started. It then goes out if
the driver and the fron tpassenger have fas-
tened their seat belts.
i For more information on the 7seat
belt warning lamp, see "Indicato rand warn-
ing lamps in the instrument cluster, seat
belt" (Y page 276). Rear seat belt status indicator
Display for securely fastened occupants on right
side of rea
rcompartmen t(example)
The rear-compartment seat belt status indi-
cator tells you if the rear passengers have
their seat belts fastened. The rear-compart-
ment seat belt status indicato rindicates the
rea rseat on which the belt is fastened. The
ü symbol in the display indicates a fas-
tened seat belt. If a seat belt is not fastened
or if a seat is not occupied, the ýsymbol
is displayed.
The rear-compartment seat belt status indi-
cator appears in the multifunction display for
around 30 seconds if:
R you drive off and reach a speed of approx-
imately 10 km/h.
R the rear passengers fasten or unfasten
their seat belts while the vehicle is in
motion.
R someone gets in or out of the vehicle and
the vehicle drives off again.
You can also cancel the rear seat belt status
indicator immediately (Y page 249).
i The status indicator for the rear-compart-
ment seat belts is only available for certain
countries.
Belt tensioners, belt force limiters G
WARNING
If the seat belt tensioners have been trig-
gered, they provide no additional protection
in the event of another accident. Therefore,
have belt tensioners which have been trig-
gered replaced at a qualified specialist work-
shop. 52
Occupant safetySafety

Comply with safety regulation
swhen dispos-
ing of belt tensioners. Any Mercedes-Benz
Service Centre can provide details of these
regulations.
! If the front-passenger seat is not occu-
pied, do not engage the seat belt tongue in
the buckle on the front-passenger seat.
Otherwise, the belt tensioner could be trig-
gered in the event of an accident.
The seat belts are fitted with belt tensioners.
The belt tensioners tighten the seat belts in
an accident, pulling them close against the
body.
Belt tensioners do not correct incorrect seat
positions or incorrectly fastened seat belts.
Belt tensioners do not pull vehicle occupants
back towards the backrest.
If the seat belt is also fitted with a belt force
limiter and this is triggered, the force exerted
by the seat belt on the vehicle occupant is
reduced.
The belt force limiters for the front seats are
synchronised with the front airbags, which
take on a part of the deceleration force. This
results in the force exerted on the occupant
being distributed over a greater area.
The belt tensioners can only be activated
when:
R the ignition is switched on.
R the restraint systems are operational; see
"SRS warning lamp" (Y page 41).
R the belt tongue is engaged in the buckle on
each of the three-point seat belts in front.
R
The belt tensioners on the seats in the rear
compartmenta re triggered independently of
the lock status of the seat belts.
The beltt ensioners are triggered depending
on the type and severity of an accident:
R if, in the event of a head-on or rear-end col-
lision the vehicle decelerates or acceler- ates rapidly in a longitudinal direction dur-
ing the initial stages of the impact
R if, in the event of a side impact, on the side
opposite the impact the vehicle deceler-
ates or accelerates rapidly in a lateral direc-
tion
R Cabriolet: in certain situations if the vehicle
overturns and the system determines that
it can provide additional protection.
If the airbags are deployed, you will hear a
bang, and a small amount of powder may also
be released. Only in rare cases will the bang
affect your hearing. The powder that is
released generally does not constitute a
health hazard. The 6SRS warning lamp
lights up.
Automatic comfort-fit feature The fron
tseat belts have an automatic com-
fort-fit feature. The automatic comfort-fit fea-
ture reduces the retraction force of the seat
belts. This results in increased seat belt com-
fort. Children in the vehicle
Child restraint systems
Important safety notes G
WARNING
To reduce the risk of serious or even fatal
injury to the child in the event of a sudden
change in direction, braking or an accident:
R children less than 1.50 m tall and under
twelve years of age must always be secured
in special child restraint systems on a suit-
able vehicle seat. This is necessary
because the seat belts are not designed for
children.
R Do not drive with a child secured in a rear-
ward-facing child restraint system on the
front-passenger seat. Exception: if the vehi-
cle is equipped with automatic child seat
recognition on the front-passenger seat Children in the vehicle
53Safety
Z