2011 MERCEDES-BENZ E-CLASS CABRIOLET engine

or BAS PLUS, the brake lamps flash rapidly.
In this way, traffic travelling behind you is
warned in an even more noticeable manner.
If you brake sharply from aspeed of more
than 70 km/htoa standstill, the hazard warn-
ing lamps are activated automatically. If the
brakes are applied again, the brake lamps
light up continuously. The hazard warning
lamps switch off automaticallyify ou travel
faster than 10 km/h .You can also switch off
the hazard warning lamps using the hazard
warning switch button (Y page 117).ESP
®
(Electronic Stability Program)
Important safety notes i
See the "Important safety notes" section
(Y page 61).
If ESP ®
detect sthat the vehicle is deviating
from the direction desired by the driver, one
or more wheels are braked to stabilise the
vehicle. If necessary, the engine output is also
modified to keep the vehicle on the desired
course within physical limits. ESP ®
assists
the driver when pulling away on wet or slip-
pery roads. ESP ®
can also stabilise the vehi-
cle during braking.
If ESP ®
intervenes, the ÷ESP®
warning
lamp flashes in the instrument cluster. G
WARNING
If the ÷ warning lamp in the instrument
cluster flashes, proceed as follows:
R do not deactivate ESP ®
under any circum-
stances.
R only depress the accelerator pedal as far as
necessary when pulling away.
R adapt your driving style to suit the prevail-
ing road and weather conditions.
Otherwise, the vehicle could go into askid.
ESP ®
cannot reduce the risk of an accident if
you drive too fast. ESP ®
cannot override the
laws of physics. !
Switch the ignition off when:
R the parking brake is being tested using a
dynamometer
R the vehicle is being towed with the front/
rear axle raised
Application of the brakes by ESP ®
may oth-
erwise destroy the brake system.
i Only use wheels with the recommended
tyre sizes. Only then will ESP ®
function
properly.
ETS (Electronic Traction Support) Traction control is part of ESP
®
.
Traction control brakes the drive wheels indi-
viduall yifthey spin. This enables you to pull
away and accelerate on slippery surfaces, for
example if the road surface is slippery on one
side.
Traction control remains active if you deacti-
vate ESP ®
. G
WARNING
Traction control cannot reduce the risk of an
accident if you drive too fast. Traction control
cannot override the laws of physics.
Deactivating/activating ESP ® i
Observe the "Important safety notes" sec-
tion (Y page 61).
ESP ®
is activated automatically when the
engine is started.
i Vehicles with ECO start/stop function:
the ECO start/stop function switches the
engine off automatically when the vehicle
comes to astop. The engine startsa uto-
matically when the driver wants to pull
away again. ESP ®
remains in its previously
selected status. Example: if ESP ®
was
deactivated before the engine was
switched off, ESP ®
remains deactivated
when the engine is switched on again. 64
Driving safety systemsSafety

It may be best to deactivate ESP
®
in the fol-
lowing situations:
R when using snow chains
R in deep snow
R on sand or gravel G
WARNING
Activate ESP ®
as soon as the situations
describe dabove no longer apply. ESP ®
will
otherwis enot be abletos tabilise the vehicle
if the vehicle starts to skid or awhee lstarts
to spin.
When you deactivate ESP ®
:
R ESP ®
no longer improves driving stability.
R the engine's torque is no longer limited and
the drive wheels can spin. The spinning of
the wheels results in acutting action, which
provide sbetter grip.
R traction control is still activated.
R ESP ®
still provide ssupport when you
brake.
If ESP ®
is deactivated and one or more wheels
start to spin, the ÷ESP®
warning lamp in
the instrument cluster flashes. In such situa-
tions, ESP ®
willn ot stabilise the vehicle.
X To deactivate: (Ypage 223).
The å ESP®
OFF warning lamp in the
instrument cluster lights up. G
WARNING
ESP ®
is deactivated if the åwarning lamp
in the instrument cluster lights up continu-
ouslyw hen the engine is running.
If the ÷ warning lamp and åwarning
lamp are lit continuously, ESP ®
is not availa-
ble due to amalfunction.
There is an increased risk of yourv ehicle skid-
ding in certain situations.
You should alway sadapt your driving style to
suit the prevailing road and weather condi-
tions. X
To activate:(Y page 223).
The å ESP®
OFF warning lamp in the
instrument cluster goes out.
ESP ®
trailer stabilisation If your vehicle with trailer (vehicle/trailer
combination) begins to lurch, you can only
stabilise the vehicle/trailer combination by
depressing the brake firmly.
In this situation ,ESP ®
assists you and can
detec tifthe vehicle/trailer combination
begins to lurch. ESP ®
slows the vehicle down
by braking and limiting the engine output until
the vehicle/trailer combination has stabi-
lised.
Trailer stabilisation is active above speeds of
about 65 km/h. G
WARNING
If road and weather conditions are poor,
trailer stabilisation will not be able to prevent
the trailer from swerving and will thus be
unable to reduce the risk of an accident. Trail-
ers with ahigh centre of gravity can tip over
before ESP ®
can detect this.
Trailer stabilisation does not work if ESP ®
is
deactivated or disabled because of amal-
function. EBD (electronic brake force distribu-
tion)
i Observe the "Important safety notes" sec-
tion (Y page 61).
EBD monitors and controls the brake pres-
sure on the rear wheels to improve driving
stability while braking. G
WARNING
If EBD has malfunctioned, the braking system
remains available with full brake boosting
effect.H owever, the rear wheels can still lock,
e.g. under full braking. This could cause you
to lose control of your vehicle and cause an
accident .You should therefor eadapt your Driving safety systems
65Safety
Z

Anti-thef
tsystems Immobiliser
The immobiliser prevents your vehicl efrom
bein gstarted without th ecorrect key.
X To activat ewith the key: remove the key
from the ignition lock.
X To activate with KEYLESS-GO: switch the
ignition off and open the driver's door.
X To deactivate: switch on the ignition.
i The immobiliser is alway sdeactivated
when you start the engine. ATA (Anti-Theft Alarm system)
Av isual and audible alarm is triggere difthe
alarm system is prime dand you open:
R ad oor
R the vehicle with the emergency key ele-
ment
R the boot lid
R the bonnet
The alarm is not switched off ,even if you
clos ethe open door that has triggere dit, for
example. X
To prime: lock the vehicle with the key or
KEYLESS-GO.
Indicator lamp :flashes .The alarm sys-
tem is primed after approximately 15 sec-
onds.
X To deactivate: unlock the vehicle with the
key or KEYLESS-GO. X
To stop the alarm using the key: insert
the key into the ignition lock.
The alarm is switched off.
or
X Press the %or& button on the key.
The alarm is switched off.
X To stop the alarm using KEYLESS-GO:
grasp the outside door handle. The key
must be outside the vehicle.
The alarm is switched off.
or
X Press the Start/Stop button on the dash-
board. The key must be inside the vehicle.
The alarm is switched off. Tow-away protection
An audible and visual alarm is triggered if your
vehicle's angle of inclination is altered while
tow-away protection is primed. This occurs if
the vehicle is jacked up on one side, for exam-
ple.
X To prime: lock the vehicle with the key or
KEYLESS-GO.
Tow-away protection is primed after
approximately 30 seconds.
X To deactivate: unlock the vehicle with the
key or KEYLESS-GO.
Tow-away protection is deactivated auto-
matically.
To prevent afalse alarm, deactivate tow-away
protection manually if your vehicle:
R is being transported
R is being loaded onto aferry or car trans-
porter, for example
R is parked on amovable surface, e.g. in a
split-level garage
Deactivating:
X Remove the key from the ignition lock. 68
Anti-theft systemsSafety

Useful information
i This Owner's Manual describes all models
and all standard and optional equipment
available to your vehicle at the time of pub-
lication of the Owner's Manual. Country-
specific deviation sare possible. Please
not ethat your vehicle may not be equipped
with all feature sdescribed. This also
applies to safety-relevan tsystems and
functions.
i Pleas ereadt he information on qualified
specialist workshop s(Ypage 22). Key
Key functions
Locking an dunlocking centrally The key centrally locks/unlocks:
R
the doors
R the boot lid
R the fuel filler flap G
WARNING
Only for the United Kingdom: if the vehicle
has been locked with the key, the double lock
function is activated as standard. It is then not
possible to open the doors from inside the
vehicle.
Therefore, do not leave any people behind in
the vehicle, particularly children ,elderly peo-
ple or people in need of special assistanc eif
the vehicle has been locked with the key. As
ar esult, they may not be able to free them-
selves in the event of an emergency. As a
result, they could be seriously or even fatally
injured by prolonged exposure to extremely
high or low temperatures, for example. In this
case, rescuin gpeople from outside the vehi-
cle is difficult.
Deactivate the interior motion sensor before
you lock the vehicle with the key. The doors
can then be opened from the inside after the vehicle has been locked from the outside with
the key.
G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open adoor from inside the vehicle at any
time, even if it has been locked
R start the vehicle using akey which has been
left in the vehicle
R release the parking brake
They could thereby endanger themselves and
others. Never leave children unsupervised in
the vehicle. Always take the key with you
when leaving the vehicle, even if you are only
leaving it for ashort time. G
WARNING
If ak ey ring is too heavy or too large, the
weight actin gonthe key could cause it to turn
in the ignition lock or catc honthe steering
wheel. This could cause the engine to be
switched off suddenly. You may lose control
of the vehicle and cause an accident. Do not
attac hany heavy or large key rings to the key
that is inserted in the ignition. :
& To lock the vehicle
; F To unlock the boot lid
= % To unlock the vehicle
When unlocking, the turn signals flash once.
When locking, they flash three times.
You can also set an audible signal to confirm
that the vehicle has been locked or unlocked.
The audible signal can be activated and deac- 72
KeyOpening and closing

tivate
dusing the on-board computer
(Y page 228).
X To unloc kcentrally: pressthe % but-
ton.
If you do not open th evehicle within approx-
imately 40 seconds of unlocking:
R the vehicle is locked again.
R the anti-thef tsystem is primed again.
X To lock centrally: press the&button. KEYLESS-GO
You can start ,loc koru nlock the vehicl eusing
KEYLESS-GO .Todothis, you only need carry
the key with you. When you touch the surface
of the sensors on the vehicle's outside door
handles, KEYLESS-GO establishes aradio
connection between the vehicle and the key.
When the engine is started and whilst you are
driving, KEYLESS-GO also checksw hether a
valid key is in the vehicle by periodically
establishing radio contact.
When lockin gorunlockingw ith KEYLESS-GO,
the distanc ebetween the key and the door
handle you wish to lock or unloc kmust not
be greate rtha n1m. X
To unlock th evehicle: touch th einner
surface of th edoor handle.
X To lock th evehicle: touch sensor sur-
face :.
X Convenience closin gfeature: touch
recessed sensor surface ;for an exten-
ded period (Y page 84). If you pull on th
ehandle of th eboot lid, only
th eb oot of th evehicl eisu nlocked.
If th evehicl ehas been parked for alon gtime,
th es ensor surface sare deactivated automat-
ically. Pull th edoor handle to unlock th edoor
and tur nontheignition once to activat ethe
sensor surface sagain. Changing th
esettings of th elocking
system
You can chang ethe setting of th elocking
system in suc haway that only th edriver's
door and th efuel fille rflap are unlocked. This
is useful if you frequently travel on your own.
X To chang ethe setting: press and hold
down the %and& buttons simulta-
neously for approximately six seconds until
the battery chec klamp (Y page 74)
flashes twice.
i If the settin gofthe locking system is
changed within the signal rang eofthe vehi-
cle, pressing the &or% button locks
or unlocks the vehicle.
The key now functions as follows:
X To unlock th edriver' sdoor: press the
% button once.
X To unlock centrally: press the%but-
ton twice.
X To lock centrally: press the&button.
The KEYLESS-GO function is changed as fol-
lows:
X To unlock th edriver' sdoor: touchthe
inner surface of the door handle on the
driver's door.
X To unlock centrally: touchthe inner sur-
face of the front-passenger door handle.
X To lock centrally: touchthe outer sensor
surface on one of the door handles. Key
73Opening and closing Z

Problem Possible causes/consequences and
M Solutions
The key cannot be
turned in the ignition
lock. The key has been in position
0for aconsiderable time.
X Remove the key and reinsert it into the ignition lock.
X Check the starter battery and charge it if necessary
(Y page 305).
X Start the engine. The on-board voltage is too low.
X
Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to turn the key again.
If this does not work:
X Check the starter battery and charge it if necessary
(Y page 305).
or
X Jump-start the vehicle (Y page 309).
or
X Consult aqualified specialist workshop. Doors
Important safety notes
G
WARNING
Only for the United Kingdom: if the vehicle
has been locked with the key, the double lock
function is activated as standard. It is then not
possible to open the doors from inside the
vehicle.
Therefore, do not leave any people behind in
the vehicle, particularly children, elderly peo-
ple or people in need of special assistance if
the vehicle has been locked with the key. As
ar esult, they may not be able to free them-
selves in the event of an emergency. As a
result, they could be seriously or even fatally
injured by prolonged exposure to extremely
high or low temperatures, for example. In this
case, rescuing people from outside the vehi-
cle is difficult.
Deactivat ethe interior motion sensor before
you lock the vehicle with the key. The doors
can then be opened from the inside after the vehicle has been locked from the outside with
the key.
G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open adoor from inside the vehicle at any
time, even if it has been locked
R start the vehicle using akey which has been
left in the vehicle
R release the parking brake
They could thereby endanger themselves and
others. Never leave children unsupervised in
the vehicle. Always take the key with you
when leaving the vehicle, even if you are only
leaving it for ashort time. Unlocking and opening the doors
from the inside
For all countries except the United King-
dom: you can open adoor from inside the
vehicle even if it has been locked. Doors
77Opening and closing Z

Unlocking the driver's door (emer-
gency key element)
If the vehicle can no longer be unlocked with
the key, use the emergency key element.
If you use the emergency key element to
unlock and open the driver' sdoor, the anti-
thef talarm system will be triggered
(Y page 68).
X Take the emergency key elemen tout of the
ke y( Ypage 74).
X Inser tthe emergency key element into the
lock of the driver's door as far as it will go. X
Turn the emergency key element anti-
clockwise to position 1.
The door is unlocked.
i On right-hand-drive vehicles, turn the
emergency key element clockwise.
X Turn the emergency key element back and
remove it.
X Insert the emergency key element into the
key. Locking the vehicle (emergency key
element)
If the vehicle can no longer be locked with the
key, use the emergency key element.
X Open the driver's door.
X Close the front-passenger door and the
boot lid.
X Press the locking button (Y page 78).
X Check whether the locking knob on the
front-passenger door is still visible. Press down the locking knob by hand, if neces-
sary.
X Close the driver's door.
X Take the emergency key element out of the
key (Y page 74).
X Insert the emergency key element into the
lock of the driver's door as far as it will go. X
Turn the emergency key element clockwise
as far as it will go to position 1.
i On right-hand-drive vehicles, turn the
emergency key element anti-clockwise.
X Turn the emergency key element back and
remove it.
X Make sure that the doors and the boot lid
are locked.
X Insert the emergency key element into the
key. Boot
Important safety notes
Do not leave the key in the boot. You could
otherwise lock yourself out. G
WARNING
Exhaust fumes could enter the vehicle interior
if the engine is running and the boot lid is
open. This could poison you. Therefore, you
should make sure that the boot lid is always
closed when the engine is running.
! The boot lid swings upwards when
opened. Therefore, make sure that there is
sufficient clearance above the boot lid. Boot
79Opening and closing Z

The switches for all side windows are located
on the driver's door. There is also aswitch on
the front-passenger door as well as on the
doors in the rear compartment on the left and
right-hand sides for the respective side win-
dow.
The switches on the driver's door take prec-
edence.
i The side windows cannot be operated
from the rear when the override feature for
the side windows is activated (Y page 61).
X Turn the key to position 1or 2in the ignition
lock.
X To open: press the corresponding switch.
X To close: pull the corresponding switch.
i You can use the automatic operation fea-
ture when opening or closing the fronts ide
windows .Todoso, press or pull the switch
to just beyond the point of resistanc einthe
relevant direction .You can stop automatic
operation by pressing or pulling again.
i You can continue to operate the side win-
dows after switching off the engine or
removing the key. This function remains
active for five minutes or until the driver's
or front-passenger door is opened. Opening and closin
gall side windows
(Cabriolet)
X Open the cover on the lower centre con-
sole.
The switch for all side windows is under the
cover. X
To open all side windows manually:
press switch :as far as the point of resist-
ance.
X To open all side windows fully: press
switch :beyond the point of resistance.
X To close all side windows: pull
switch :. Convenience opening (Coupé)
You can ventilate the vehicle before you start
driving. To do this, the key is used to carry out
the following functions simultaneously:
R unlock the vehicle
R open the side windows
R open the panorama sliding sunroof and the
roller sunblind
R switch on the seat ventilation for the driv-
er's seat
i The convenienc eopening feature can
only be operated using the key. The key
must be close to the driver's door handle.
X Point the tip of the key at the driver's door
handle.
X Press and hold the %button until the
side windows and the panorama sunroof
are in the desired position.
If the roller sunblind of the panorama sliding
sunroof is closed, the roller sunblind is
opened first.
X Press and hold the %button again until
the panorama sliding sunroof is in the
desired position.
X To interrupt convenience opening:
release the %button. Side windows
83Opening and closing Z