ECU MERCEDES-BENZ E-CLASS CABRIOLET 2011 User Guide

Child-proof locks
Important safety notes G
WARNING
Do no tleave children unsupervised in the
vehicle, even if they are secured in achild
restraint system. They could injure them-
selves on parts of the vehicle. They could also
be seriously or even fatally injured by pro-
longed exposure to extreme heat or cold.
Do not expose the child restraint system to
direct sunlight. Parts of the child restraint sys-
tem could heat up and the child could burn
herself/himself on them.
If ac hild opens adoor, the child or other per-
sons could be injured as aresult. They could
get out and injure themselves or be injured by
ap assing vehicle.
Also observe the notes on HOLD .Relevant
information can be found in the index.
Override feature for the rear side win-
dows G
WARNING
Activate the override switch for the rear side
windows if children are travellin ginthe vehi-
cle. Otherwise, the children could open the
side windows while the vehicle is movin gand
injure themselves or others. X
To activate/deactivate: press button;.
If indicator lamp :is lit, operation of the
rear side windows is disabled. Operation is
only possible using the switches in the driv- er's door. If indicator lamp
:is off, oper-
ation is possible using the switches in the
rear compartment. Driving safety systems
Driving safety system
soverview
In this section, you will find information about
the following driving safety systems:
R ABS (Anti-lock BrakingSystem)
R BAS (Brake AssistSystem)
R BAS PLUS ( BrakeAssist System Plus*)
R Adaptive brake lamps
R ESP ®
(Electronic StabilityProgram)
R EBD( electronic brake force distribution)
R ADAPTIV EBRAKE
R PRE-SAFE ®
Brake Important safety notes
G
WARNING
The risk of an acciden tissignificantly
increased by driving too fast. This is particu-
larly the case when cornering as well as on
wet or slippery roads or when driving too close
to the vehicle in front.
The driving safety systems described in this
section can neither reduce this risk nor over-
ride the laws of physics.
For this reason, always adapty our driving
style to the prevailing road and weather con-
ditions. Maintain sufficient distance from
other road users and object sonthe road.
i Please notet hat the driving safety sys-
tems described only work as effectively as
possible when there is adequate contact
between the tyres and the road surface.
Pay particular attention to the information
regarding tyres, recommended minimum
tyre tread depths etc. in the "Wheels and
tyres" section (Y page 318). Driving safety systems
61Safety Z

X
Turn the emergenc ykey element anti-
clockwise from position 1as far as it will
go to position 2and pull the boot lid han-
dle.
The boot is unlocked.
X Turn the emergenc ykey element back to
position 1and remove it.
X Insert the emergenc ykey element into the
key. Side windows
Important safety notes
G
WARNING
Make sure that nobody can become trapped
between the side window and the door frame
when aside window is opened. Do not touch
or lean against the side window during the
opening procedure. You could become trap-
ped between the side window and the door
frame as the side window moves down. If
there is arisk of becoming trapped, release
the switch or pull the switch upwards to close
the side window again. G
WARNING
Make sure that nobody can become trapped
as you close aside window. If there is arisk
of becoming trapped, release the switch or
press it again to open the side window again. G
WARNING
Children may injure themselves if they open
or close the side windows. Never leave children unsupervised in the vehi-
cle. Always take the key with you when leaving
the vehicle, even if you are only leaving it for
as
hort time. G
WARNING
Do not leave children unsupervised in the
vehicle, even if they are secured in achild
restraint system. The children could:
R be seriously or even fatally injured on parts
of the vehicle
R be seriously or even fatally injured by pro-
longed exposure to extremely high or
extremely low temperatures
If children open adoor, they could:
R seriously or even fatally injure other people
R get out of the vehicle and injure them-
selves, or be seriously or even fatally
injured by apassing vehicle
Activate the override feature if children are
travelling in the vehicle. They could otherwise
open side windows while the vehicle is in
motion and thereby injure themselves or oth-
ers. Opening and closing the side win-
dows
:
Frontl eft
; Frontr ight
= Rear right
? Rear left 82
Side windowsOpening and closing

Boo
tseparator
General notes The boot separato
rcan be used to cover lug-
gage and loads in th eboot.
The sof ttop can only be opened when the
boot separator is closed.
! To avoid damaging the soft top or load
when folding back the soft top, observe the
following:
R when the boot separator is open, do not
place any object sinorbehind the net on
the side that are so long they could
obstruct the boot separator or damage
the opened soft top.
R make sure that the load does not push
the boot separator upwards.
Opening and closing X
To close: pull boot separator :by the
handle in the direction of the arrow until it
rests on the sides of the boot.
Boot separator :finishes closing auto-
matically.
X To open: push boot separator :against
the direction of the arrow by the handle.
The boot separator finishes opening auto-
matically. Brackets for draught stop
The draught stop protects against wind when
driving with the soft top open. It is secured above the rear bench seats. For this reason,
only the driver and the front passenger can
travel in the vehicle when the draught stop is
fitted. G
WARNING
Fold back the top part of the draught stop if it
restricts your vision or when it is dark. It could
otherwise impair your view to the rear and you
could cause an accident.
! Mercedes-Benz recommends that you
only use draught stops which have been
tested and approved for Mercedes-Benz
vehicles. This helps to prevent damage to
the vehicle.
! Observe the backrest position of the front
seats if the draught stop is installed, since
the backrest could collide with the draught
stop here. X
When installing the draught stop, use lat-
eral brackets :.
Observe the manufacturer's installation
instructions. AIRCAP
General notes With AIRCAP, four people can travel comfort-
ably with the soft top open. AIRCAP reduces
the draught for the driver and passengers in
both the front and the rear compartment in a
vehicle with the soft top down. You can open
or close AIRCAP either when the vehicle is 92
Soft top (Cabriolet)Opening and closing

The seat belt should:
R
fit snugly across your body
R be routed across the middle of your
shoulder
R be routed in your pelvic area across the
hip joints
X Before starting off, adjust the rear-view mir-
ror and the exterior mirrors (Y page 109)
in such away that you have agood view of
road and traffic conditions.
X Vehicles with amemor yfunction: save
the seat, steerin gwheel and exterior mirror
settings (Y page 112). Seats
Important safety notes
G
WARNING
The seats can still be adjusted when there is
no key in the ignition lock. For this reason,
children should never be left unsupervised in
the vehicle. They could adjust the seats and
become trapped. G
WARNING
Only adjust the driver's seat when the vehicle
is stationary. You will otherwise be distracted
from the road and traffic conditions and you
could lose control of the vehicle as aresult of
the seat moving. This could cause an acci-
dent. G
WARNING
If you adjust the seat height carelessly, you or
others could be trapped and thereby injured.
Children in particular could unintentionally
press the button stoelectrically adjust the
seats and become trapped.
Take care that:
R while moving the seats, your hands do not
get under the lever assembly of the seat
adjustmen tsystem.
R children in th evehicl edon ot slide their
hands under the levers. G
WARNING
Make sure that nobody can becom etrapped
when adjusting the seats.
Observe the notes on airbags.
Secure children as recommended; see the
"Children in the vehicle" section. G
WARNING
Make sure that the back of your head is sup-
ported at eye level by the central area of the
head restraint .Ifyour head is not supported
correctly by the head restraint ,you could suf-
fer asevere neck injury in the event of an
accident .Never drive if the head restraints are
not engaged and set correctly. G
WARNING
As eat belt can only offer its intended degree
of protection when the backrest is almost ver-
tical and the occupant is sitting upright. Avoid
seat position sthat do not allow the seat belt
to be routed correctly. Adjust the backrest so
that it is as upright as possible. Never travel
with the backrest reclined too far backwards.
You could otherwise be seriously or even
fatally injured in the event of an acciden tor
sudden braking.
! To avoid damage to the seats and the seat
heating, observe the following information:
R do not spill any liquids on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
R if the seat cover sare damp or wet, do not
switch on the seat heating. The seat
heating should also not be used to dry
the seats.
R clean the seat cover sasrecommended;
see the "Interior care" section.
R do not transport heavy loads on the
seats. Do not place sharp objects on the
seat cushions ,e.g. knives, nails or tools.
The seats should only be occupied by
passengers, if possible.
R when the seat heating is in operation ,do
not cover the seats with insulating mate- Seats
101Seats, steering wheel and mirrors Z

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). Running-i
nnotes Important safet
ynotes G
WARNING
New brake pads/lining sonlyh aveo ptimal
braking performanc eafter severa lhundred
kilometres .Until then, compensate for thi sby
applying greate rforce to the brake pedal. This
also applies when brake pads/linings or
brake discs have been changed. The first 1,500 km
The more you look after the engine when it is
new, the more satisfied you will be with its
performanc einthe future.
R Therefore, drive at varying speeds and
engine speeds for the first 1,500 km.
R Avoid heavy loads on the engine during this
period, e.g. driving at full throttle.
R Change gear in good time, at the latest
when the rev counter needle is 2
/ 3 of the
way to the red area in the rev counter dis-
play.
R Do not manually shift to alower gear to
brake the vehicle. Vehicles with automatic transmission:
R
If possible, do not depress the accelerator
pedal past the point of resistanc e(kick-
down).
R Only select shift ranges 3,2or 1when driv-
ing slowly, e.g. in mountainous terrain.
After 1,500 km, you may gradually bring the
vehicle up to full road and engine speeds.
i You should also observe these notes on
runnin ginift he engine or parts of the drive
train on your vehicle have been replaced. Driving
Important safety notes
G
WARNING
Do not place any object sinthe driver's foot-
well. If you use afloormat or carpet in the
driver's footwell, make sure that it is correctly
secured and that there is sufficient clearance
for the pedals.
Do not place several floormats on top of one
another.
Loose object sorthe floormats could other-
wise get caught between the pedals if you
accelerate or brake suddenly. You will then
not be able to brake, declutch or accelerate
as intended. This could lead to accident sand
injury. G
WARNING
Do not change down for additional engine
braking on aslippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid. This could cause you
to lose control of your vehicle and cause an
accident.
! Warm up the engine quickly. Do not use
the engine's full performanc euntil it has
reached operating temperature.
Only set the automatic transmission to the
respective drive positions when the vehicle
is stationary. 146
DrivingDriving and parking

Neutral
NwithE CO start/sto pfunc-
tio na ctivated
In neutral N,the engine is switched off if the
vehicl espeed is belo wacertainthreshold and
the clutch pedal is not depressed.
For further information on the ECO start/stop
function, see (Y page 150). Engaging reverse gear
! Only shift into reverse gear Rwhen the
vehicle is stationary. Otherwise, you could
damage the transmission.
i The ECO start/stop function is not avail-
able when reverse gear is engaged.
For further information on the ECO start/
stop function, see (Y page 150).
X Move the gear lever firmly to the left
beyond the point of resistance and then
forwards. Shift recommendation
The gearshift recommendations assist you in
adopting an economical driving style. The rec-
ommended gear is shown in the multifunction
display. X
Shift gear according to gearshift recom-
mendation :shown in the multifunction
displayoft he instrumentc luster. Automatic transmission
Important safety notes
G
WARNING
The movemen tofthe pedals must not be
impaired in any way.Don ot keep any objects
in the driver's footwell. Make sure that floor-
mats or carpets are correctly secured and
that there is sufficient clearance for the ped-
als.
Do not place several floormats on top of one
another. G
WARNING
Do not change down for additional engine
braking on aslippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid. This could cause you
to lose control of your vehicle and cause an
accident. Selector lever
Overview of transmission positions Selector lever
P
Park position with selector lever lock
R Reverse gear
N Neutral
D Drive 154
Automatic transmissionDriving and parking

Problem Possible causes/consequences and
M Solutions
The fuel filler flap can-
not be opened. The fuel filler flap is not unlocked.
or
The key battery is discharged.
X
Unlock the vehicle (Y page 72).
or
X Unlock the vehicle using the emergency key element
(Y page 74). The fuel filler flap is unlocked, but the opening mechanism is jam-
med.
X
Consult aqualified specialist workshop. Parking
Important safety notes
G
WARNING
Only remove the key from the ignition lock
when the vehicle is stationary, as you cannot
steer the vehicle when the key is removed.
Never leave children unsupervised in the vehi-
cle. They could release the parking brake. This
could lead to aserious or fatal accident. G
WARNING
Under no circumstances should the exhaust
system come into contact with flammable
materials such as dry grass or petrol, for
example. Do not park the vehicle on dry grass-
land or harvested grain fields. The hot exhaust
system could otherwise ignite the flammable
material and set the vehicle on fire.
To ensure that the vehicle is secured against
rolling away unintentionally:
R the parking brake must be applied.
R on vehicles with manual transmission,
engage first gear or reverse gear.
R on vehicles with automatic transmission,
the transmission must be in position Pand the key must be removed from the ignition
lock.
R on steep uphill or downhill gradients, turn
the front wheels towards the kerb. Switching off the engine
Important safety notes G
WARNING
If the engine is not running, there is no power
assistance for the steering and brakes. Steer-
ing and braking then requires significantly
greater effort.
As aresult, you might lose control of the vehi-
cle, cause an accident and injure yourself and
others.
Therefore, do not switch off the engine while
you are driving.
Vehicles with manualt ransmission X
Shift to either first gear or reverse gear R.
X Turn the key to position 0in the ignition
lock and remove it.
The immobiliser is activated.
X Apply the parking brake firmly. Parking
165Driving and parking Z

The DISTRONIC PLUS braking effect is can-
celled and the vehicle can start moving if:
R DISTRONIC PLUS is deactivated using the
cruise control lever.
R you accelerate.
R there is amalfunction in the system or an
interruption in the power supply, e.g. bat-
tery failure.
R the electrical system in the engine com-
partment, the battery or the fuses are tam-
pered with.
R the battery is disconnected.
If you wish to leave the vehicle or park it,
deactivate DISTRONIC PLUS and secure the
vehicle against rolling away.
If DISTRONIC PLUS detect sthat the vehicle
in frontiss topping, it brakes your vehicle until
it is stationary.
Once your vehicle is stationary, it remains
stationary and you do not need to depress the
brake.
i Depending on the specified minimum dis-
tance, your vehicle will come to astandstill
at as ufficient distance behind the vehicle
in front.T he specified minimum distance is
set using the control on the cruise control
lever.
You will see awarning message in the multi-
function displayifD ISTRONIC PLUS is acti-
vated and:
R the driver's door is open and the driver's
seat belt is unfastened.
R the engine is switched off, unless it is auto-
matically switched off by the ECO start/
stop function.
R the bonnet is opened.
Select Park (P) X
Move the selector lever to Pto prevent the
vehicle from rolling away.
DISTRONIC PLUS is deactivated. The warn-
ing message in the multifunction display
disappears. The horn will also sound at regular intervals if
DISTRONIC PLUS is activated and you:
R
switch the engine off, open the driver's
door and take off your seat belt
R open the bonnet
The sounding of the horn alerts you to the fact
that the vehicle has been parked while DIS-
TRONIC PLUS is still activated. The sound
becomes louder if you attempt to lock the
vehicle. The vehicle is not locked until DIS-
TRONIC PLUS is deactivated.
i If the engine has been switched off, it
cannot be started again until DISTRONIC
PLUS has been deactivated.
If DISTRONIC PLUS is activated and afault
occurs in the system or if there is adisruption
in the power supply,t heBrake immedi‐ ately message is shown in the multifunction
display. Immediately depress the brake firmly
until the warning message in the multifunc-
tion displayg oes out or shift the transmission
to position P.DISTRONIC PLUS is deactiva-
ted.
Setting aspeed X
Press the cruise control lever to the pres-
sure point, up :for ahighe rs peed or
down Afor alower speed.
X Keep the cruise contro llever pressed until
the desired speed is reached.
X Release the cruise contro llever.
The new speed is stored. DISTRONIC PLUS
is activated and adjusts the vehicle's speed
to the new speed stored.
Making adjustments in 1km/h incre-
ments X
Briefly press the cruise contro llever to the
pressure point ,up:for ahigher speed or
down Afor alower speed.
The last speed stored is increased or
reduced. 176
Driving systemsDriving and parking

The braking effect of the HOLD function is
cancelled and the vehicle could roll away if:
R the HOLD function is deactivated by
depressing the accelerator pedal or the
brake pedal.
R there is amalfunction in the system or an
interruption in the power supply, e.g. bat-
tery failure.
R the electrical system in the engine com-
partment, the battery or the fuses are tam-
pered with.
R the battery is disconnected.
If you leave the vehicle or park it, deactivate
the HOLD function and secure the vehicle
against rolling away.
You will see awarning message in the multi-
function display if the HOLD function is acti-
vated and:
R the driver's door is open and the driver's
seat belt is unfastened.
R the engine is switched off, unless it is auto-
matically switched off by the ECO start/
stop function.
R the bonnet is opened.
For vehicles with manual transmission:
Brake immediately X
Immediately depress the brake pedal firmly
until the warning message in the multifunc-
tion display goes out. This deactivates the
HOLD function.
On vehicles with automatic transmission:
Select Park (P) X
Move the selector lever to Pto prevent the
vehicle from rolling away.
The HOLD function is deactivated. The
warning message in the multifunction dis-
play disappears.
Ah orn will also sound at regular intervals if
the HOLD function is activated and you:
R switch the engine off, open the driver's
door and take off your seat belt
R open the bonnet The sounding of the horn alerts you to the fact
that the vehicle has been parked while the
HOLD function is still activated. The tone
becomes louder if you attempt to lock the
vehicle. The vehicle is not locked until the
HOLD function is deactivated.
i If the engine has been switched off, it
cannot be started again until the HOLD
function has been deactivated.
If there is afault in the system or power supply
while the HOLD function is activated, the
Brake immediately message is shown in
the multifunction display .Immediately
depress the brake firmly until the warning
message in the multifunction display goes
out.
On vehicles with automatic transmission, you
can alsos hift into position P.This deactivates
the HOLD function. PARKTRONIC
Important safety notes G
WARNING
PARKTRONIC is only an aid and may not
detect all obstacles. It is not asubstitute for
attentive driving.
You are always responsible for safety and
must continue to pay attention to your imme-
diate surroundings when parking and
manoeuvring. You could otherwise endanger
yourself and others. G
WARNING
Make sure that no persons or animals are in
the manoeuvring range. Otherwise, they
could be injured.
PARKTRONIC is an electronic parking aid with
ultrasonic sensors. It indicates visuallya nd
audibly the distance between your vehicle
and an object. Driving systems
185Driving and parking Z

X
Secure the traile ragainst rolling away.
X Remove the trailer cable and decouple the
trailer. Folding in the ball coupling
i Fold the ball coupling back in if you are
not using the trailer tow hitch. G
WARNING
Make sure that no persons or animals are in
the pivoting range of the ball coupling. Other-
wise, they could be injured.
X Place the protective cap on the ball cou-
pling.
The release wheel is located behind the left-
hand side trim panel in the boot. X
To open the cover: turn handle:anti-
clockwise and fold down cover ;. X
Pull out release wheel ;.
X Turn release wheel ;anti-clockwise.
The ball coupling unlocks and lowers. Indi-
cator lamp :flashes. X
Press the ball coupling in the direction of
the arrow until it engages behind the
bumper.
Indicator lamp :goes out and the mes-
sage in the multifunction display disap-
pears. Trailer power supply
When it leaves the factory, your vehicle's
trailer socket is equipped with apermanent
power supply and apower supply that is
switched on via the ignition lock.
The permanent power supply is supplied via
trailer socket pin 9.
The power supply that is switched on via the
ignition lock is supplied via trailer socket pin
10.
! You can connect consumers with apower
rating of up to 240 Wtothe permanent
power supply and up to 180 Wtothe power
supply that is switched on via the ignition
lock.
You must not charge atrailer battery using
the power supply.
The trailer's permanent power supply is
switched off in the event of low vehicle supply
voltage and after six hours at the latest. 208
Trailer towingDriving and parking