wheel MERCEDES-BENZ E-CLASS CABRIOLET 2011 Manual Online

Display messages Possible causes/consequences and
M Solutions
÷
inoperative See
Owner'
sManual G
Risk of accident
ESP ®
,B AS ,PRE-SAFE ®
,t he HOLD function ,hill start assist and
ESP ®
trailer stabilisation are no tavailabled ue toamalfunction.
The adaptive brake lights, BAS PLUS and PRE-SAFE ®
Brake may
alsoh ave failed.
In addition, the äandå warning lamp slight up in the
instrument cluster.
ATTENTION ASSIST is deactivated.
The brake system continues to function normally, but without the
functions listed above.
X Drive on carefully.
X Visi taq ualified specialist workshop. T!
÷ G
Risk of accident
EBD( electronic brake forc edistribution), ABS, ESP ®
,B AS ,PRE-
SAFE ®
,t he HOLD function ,hill start assist and ESP ®
trailer stabi-
lisatio nare not available due to amalfunction.
The adaptive brake lights, BAS PLUS and PRE-SAFE ®
Brake may
alsoh ave failed.
In addition, the ä,åand! warning lamp slight up in
the instrument cluster and awarning tone sounds.
ATTENTION ASSIST is deactivated.
The brake system continues to function normally, but without the
functions listed above. The wheels coul dtherefore lock if you
brake hard ,for example.
X Drive on carefully.
X Visi taq ualified specialist workshop immediately. J
Releas
eparking brake You are drivin
gwith the parkin gbrake applied. Awarning tone also
sounds.
X Release th eparking brake. 234
Display messagesOn-boar
dcomputer and displays

Display messages Possible causes/consequences and
M Solutions
Cruise control
--- km/h Ac
onditi on foractivatin gcruise control has no tbeen met.
You hav etried to store aspeed below 30 km/h, for example.
X If condition spermit ,drive faster than 30 km/ hand stor ethe
speed.
X Check the activation condition sfor cruise control
(Y page 169). 120 km/h
Maximu
mspeed exceeded Only for certain countries: the maximum speed has been excee-
ded.
In addition, the multifunction display shows
120 km/h .
X Driv eslower. Tyres
Display messages Possible causes/consequences and
M Solutions
Tyre pressure
Check tyres G
Risk of accident
The tyre pressure loss warning system has detected asignificant
loss in pressure.
Aw arning tone also sounds.
X Stop th evehicle without making any sudde nsteering or braking
manoeuvres .Pay attentio ntothe traffic conditions as you do
so.
X Check the tyres and, if necessary, change the wheel
(Y page 323).
X Check the tyre pressures and, if necessary, set to the correct
tyre pressure.
X Restart the tyre pressure loss warning system when the tyre
pressure is correc t(Ypage 322). Check tyre pres‐
sures
then restar
tRun Flat Indicator The tyre pressure loss warning system generated
adisplay mes-
sage and has not been restarted since.
X Set the correct tyre pressure in all four tyres.
X Restart the tyre pressure loss warning system (Y page 322).Run Flat Indicator
inoperative The tyre pressure loss warning system is faulty.
X
Visit aqualified specialist workshop. Display messages
249On-boardcomputer and displays Z

Safety systems
Problem Possible causes/consequences and
M Solutions
J
The red brake system
warning lamp comes on
while the engine is run-
ning.
Awarning tone
also sounds. G
Risk of accident
There is insufficient brake fluid in the fluid reservoir.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Apply the parking brake.
X Consult aqualified specialist workshop immediately.
X Observe the additional display messages in the multifunction
display.
Do not top up the brake fluid. This does not correctt he error.!
The yellow ABS warning
lamp is lit while the
engine is running.
G
Risk of accident
ABS (Anti-lock Brake System) has been deactivated due to afault.
For this reason, BAS (Brake Assist), BAS PLUS, ESP ®
(Electronic
Stability Program), PRE-SAFE ®
,P RE-SAFE ®
Brake ,the HOLD func-
tion, hill start assist, the adaptive brake lights and ESP ®
trailer
stabilisation are also deactivated, for example.
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
ATTENTIONA SSIST is deactivated.
X Observe the additional displaym essages in the multifunction
display.
X Drive on carefully.
X Visit aqualified specialist workshop. !
The yellow ABS warning
lamp is lit while the
engine is running. A
warning tone also
sounds.
G
Risk of accident
EBD (electronic brake force distribution) is faulty. Therefore, ABS,
BAS,B AS PLUS, ESP ®
,P RE-SAFE ®
,P RE-SAFE ®
Brake, the HOLD
function, hill start assist, the adaptive brake lights and ESP ®
trailer
stabilisation, for example, are not available either.
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
ATTENTIONA SSIST is deactivated.
X Observe the additional displaym essages in the multifunction
display.
X Drive on carefully.
X Visit aqualified specialist workshop. Warning and indicator lampsint
he instrument cluster
257On-board computer and displays Z

Problem Possible causes/consequences and
M Solutions
Jäå!
The red brake warning
lamp, the yellowE
SP®
and ESP ®
OFF warning
lamps and the yellow
ABS warning lamp are
lit while the engine is
running. G
Risk of accident
ABS and ESP ®
are malfunctioning. Therefore, BAS,B AS PLUS,
EBD,P RE-SAFE ®
,P RE-SAFE ®
Brake, the HOLD function, hill start
assist, the adaptive brake lights and ESP ®
trailer stabilisation, for
example, are not available either due to amalfunction.
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
ATTENTION ASSIST is deactivated.
X Observe the additional display messages in the multifunction
display.
X Drive on carefully.
X Visit aqualified specialist workshop. ä
The yellowE
SP®
warn-
ing lamp flashes while
the vehicle is in motion. G
Risk of accident
ESP ®
or traction control has intervened because there is arisk of
skidding or at least one wheel has started to spin.
Cruise control or DISTRONIC PLUS is deactivated.
X Only depress the accelerator pedal as far as necessary when
pulling away.
X Release the accelerator pedal while the vehicle is in motion.
X Adapt your driving style to suit the road and weather conditions.
X Do not deactivate ESP ®
.
For exceptions: (Y page 64).å
The yellow ESP
®
OFF
warning lamp is lit while
the engine is running. G
Risk of accident
ESP ®
and ESP ®
trailer stabilisation are deactivated. ESP ®
will not
stabilise the vehicle if it starts to skid or if awheel starts to spin.
X Reactivate ESP ®
.
Exceptions: (Y page 64).
X Adapt your driving style to suit the road and weather conditions.
If ESP ®
cannot be activated:
X Have ESP ®
checked at aqualified specialist workshop. 258
Warning and indicator lampsint
he instrument clusterOn-board computer and displays

Problem Possible causes/consequences and
M Solutions
äå
The yellowE
SP®
and
ESP ®
OFF warning
lamps are lit while the
engine is running. G
Risk of accident
ESP ®
,B AS,B AS PLUS, PRE-SAFE ®
,P RE-SAFE ®
Brake, the HOLD
function, hill start assist, the adaptive brake lights and ESP ®
trailer
stabilisation are not available due to amalfunction .ESP ®
will not
stabilise the vehicl eifitstarts to skid or if awheel starts to spin.
The brake system continues to function normally, but without the
functions listed above.
ATTENTIONA SSIST is deactivated.
X Observe the additional displaym essages in the multifunction
display.
X Drive on carefully.
X Visit aqualified specialist workshop. J
The red brake system
warning lamp comes on
while the vehicle is
moving.
Awarning tone
also sounds. You are driving with the parking brake applied.
X
Release the parking brake.
The warning lamp goes out and the warning tone ceases. 6
The red SRS warning
lamp is lit while the
engine is running.
G
Risk of injury
The restraint systems are malfunctioning. The airbags or belt ten-
sioners may either be triggered unintentionally or, in the event of
an accident, not be triggered at all.
X Drive on carefully.
X Visit aqualified specialist workshop immediately. Warning and indicator lampsint
he instrument cluster
259On-board computer and displays Z

Mercedes-Ben
zrecommends the use of an
approved exterior aerial. This ensures:
R optimal mobile phone reception quality in
the vehicle
R mutual influences between the vehicle
electronics and mobile phones are mini-
mised
An exterior aerial has the following advan-
tages:
R it conducts the electromagnetic fields gen-
erated by awireless device to the exterior.
R the field strengt hinthe vehicle interior is
lower than in avehicle that does not have
an exterior aerial.
i There are various mobile phone brackets
that may be fitted to your vehicle; in some
cases, these are country-specific.
i Even if your vehicle is equipped with con-
venience telephony, you can connecta
Bluetooth ®
capable mobil ephone to Audio
20 or COMAND Online via the Bluetooth ®
interface.
More information on suitabl emobilephones,
mobil ephone brackets and on connecting
Bluetooth ®
capable mobil ephones to Audio
20 or COMAND Online can be obtained:
R at your Mercedes-Benz Service Centre
R on the Internet at http://www.mercedes-
benz.com/connect
i The functions and service savailablew hen
you use the phone depend on yourm obile
phone model and service provider.
Inserting the mobile phone X
Open the telephone compartment
(Y page 265).
X Place the mobile phone bracket into the
pre-installed bracket (see the separate
mobile phone bracket installation instruc-
tions).
X Insert the mobile phone into the mobile
phone bracket (see the separate mobile
phone bracket installation instructions). If the mobile phone is inserted in the mobile
phone bracket
,you can speak to the person
you are calling using the hands-free system.
i On some mobile phone brackets, you first
have to connect the mobile phone via Blue-
tooth ®
to am obile phone bracket (see the
separate operating instructions for the
mobile phone bracket).
On these mobile phone brackets, the
mobile phone does not have to be inserted
into the bracket for you to be able to use
the telephone functions. In this case, the
charging function and aerial function are
not available.
Operating the mobile phone You can operate the telephone using the
6
and~ button sonthe multifunction
steerin gwheel. You can operate other mobile
phone functions via the on-board computer
(Y page 221).
If you take the key out of the ignition lock, the
mobile phone stays on but you can no longer
use the hands-free system.
If you are making acall and you would like to
take the key out of the ignition lock, first
remove the mobile phone from the bracket.
Otherwise, the call will be ended.
i When amobile phone bracket is used that
is connected to the mobile phone via Blue-
tooth ®
:ify ou want to continue acall in
"Private mode", you have to perform the
necessary steps on the mobile phone (see
the separate mobile phone operating
instructions).
You can fold the pre-installed bracket up to
improve access to the stowage space
beneath it. Dependin gonthe vehicle's equip-
ment,aU SB connection and an AUX-IN con-
nection/Media Interface are fitted in the
stowage compartment (Y page 265).274
FeaturesStowing and features

You can obtain further information fro
ma
Mercedes-Ben zService Centre.
The ASSYS TPLUS service interval display
informs you when the nex tservice is due.
The multifunction display shows aservice
message for afew seconds, e.g.:
Next service Adue in .. days Service
Adue Service
Aoverdue by ... days The letter indicates which servic
eisdue.A stands for
aminor servic eand B for
am ajor
service. Anumber or another letter may be
displayed after the letter. This figure indicates
any necessary additional maintenanc ework
to be performed.
If you report this displayed information to a
qualified specialist workshop, for example a
Mercedes-Benz Service Centre, they can
infor myou of the costst he service will incur.
The ASSYST PLUS service interval display
does not take into account any periods of
time during which the battery is disconnec-
ted.
Maintaining the time-dependent service
schedule:
X Note down the service due date displayed
in the multifunction display before discon-
necting the battery.
or
X Subtract the battery disconnection periods
from the service date shown on the display
after reconnecting the battery.
i The ASSYST PLUS service interval display
does not show any information on the
engine oil level. Observe the notes on the
engine oil level (Y page 282).
Hiding aservice message X
Pres sthe % ora button on th esteer-
ing wheel. Displaying service messages X
Switch th eignitio non.
X Press =or; on the steering wheel
to select the Serv. menu.
X Press 9or: to select the ASSYST PLUS submenu and press
ato confirm.
The servic eduedate appear sinthe multi-
functio ndisplay.
Please bear th efollowing in mind Resetting th
eASSYST PLUS service inter-
val display
Aq ualified specialist workshop, e.g. a
Mercedes-Ben zService Centre, will reset the
ASSYST PLUS servic einterval display after
the servic ework has been carried out.
You can obtain further information ,e.g.
regarding servic ework, from aMercedes-
Benz Service Centr eordirectly from
Mercedes-Benz.
! If the ASSYST PLUS servic einterval dis-
play has been inadvertently reset ,this set-
tingc an be corrected at aMercedes-Benz
Service Centre.
Have servic ework carried out as described
in the Service Booklet. This may otherwise
lead to increased wear and damage to the
major assemblies or the vehicle.
Driving abroad
An extensive Mercedes-Benz Service network
is also available in other countries. The
Service Hotline's curren ttelephone numbers
for use when you are abroad are to be found
in the "Mercedes-BenzS ervice24h" section
of the Service Booklet. Care
Notes on care
Regular care of your vehicle is acondition for
retaining the quality in the long term. Care
285Maintenance and care Z

Use care products and cleaning agents rec-
ommended and approved by Mercedes-Benz.
! For cleaning your vehicle, do not use any
of the following:
R dry, rough or hard cloths
R abrasive cleaning agents
R solvents
R cleaning agents containing solvents
Do not scrub.
Do not touch the surfaces or protective
films with hard objects, e.g. aring or ice
scraper. You could otherwise scratch or
damage the surfaces and protective film. H
Environmental note
Dispose of empty packaging and cleaning
cloths in an environmentally responsible man-
ner.
! Do not park up the vehicle for an extended
period straight after cleaning it, particularly
after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosion of the brake discs and
brake pads/linings. For this reason, you
should drive for afew minutes after clean-
ing. Braking heats the brake discs and the
brake pads/linings, thus drying them. The
vehicle can then be parked up. Care of the exterior
Automatic car wash G
WARNING
Braking efficiency is reduced after washing
the vehicle. This could cause an accident. For
this reason, following acar wash, drive with
particular care until the brakes are dry. G
WARNING
The vehicle is braked when the HOLD function
or DISTRONIC PLUS is activated. Therefore,
deactivate the HOLD function and DISTRONIC PLUS before the vehicle is washed in an auto-
matic car wash.
You can wash the vehicle in an automatic car
wash from the very start.
! We recommend automatic car washes
with an adjustable 21
high-pressure pre-
cleaning program. In car washes that use
high water pressures, there is adanger that
as mall quantity of water may leak into the
vehicle.
! Cabriolet: do not treat the vehicle with
hot wax under any circumstances.
! Cabriolet: pull the key out of the ignition
lock when washing the vehicle. This
ensures that the wind deflector on the
windscreen is retracted. The wind deflector
may otherwise be damaged.
If the vehicle is very dirty, pre-wash it before
cleaning it in an automatic car wash.
! Make sure that the automatic transmis-
sion is in position Nwhen washing your
vehicle in atow-through car wash. The vehi-
cle could be damagedift he transmission is
in another position.
! Make sure that:
R the side windows and sliding sunroof or
soft top are closed completely.
R the blowerf or the ventilation/heatin gis
switched off (OFF button is depressed).
R the windscreen wiper switch is at posi-
tion 0.
The vehicle could otherwise be damaged.
After using an automatic car wash, wipe off
wax from the windscreen and the wiper
blades. This will prevent smears and reduce
wiping noises caused by residue on the wind-
screen.
21 In accordanc ewith the specification sfor Cabriolet programs. 286
CareMaintenance and care

High-pressure cleaning equipment
G
WARNING
Do not use high-pressure cleaners with circu-
lar-jet nozzles (dirt grinders) to clea nyour
vehicle, in particular the tyres. You could oth-
erwise damage the tyres and cause an acci-
dent.
! Always maintain adistance of at least
30 cm between the vehicle and the high-
pressure cleaner nozzle. Information about
the correc tdistanc eisavailable fro mthe
equipment manufacturer.
Move the high-pressure cleaner nozzle
around when cleaning your vehicle.
Do not aim directly at any of the following:
R tyres
R door gaps, jointse tc.
R soft top (Cabriolet)
R wind deflector net (Cabriolet)
R electrical components
R battery
R connectors
R lights
R seals
R trim elements
R ventilation slots
Damaged seals or electrical components
can lead to leaks or failures.
Cleaningt he wheels !
Do not use acidic wheel cleaning products
to remove brake dust. This could damage
wheel bolts and brake components.
! Do not park up the vehicle for an extended
period straight after cleaning it, particularly
after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosion of the brake discs and
brake pads/linings. For this reason, you
should drive for afew minutes after clean-
ing. Braking heats the brake discs and the brake pads/linings, thus drying them. The
vehicle can then be parked up.
Cleaningt he paintwork Scratches, corrosive deposits, areas affected
by corrosion and damage caused by inade-
quate care cannot always be completely
repaired. In such cases, visit aqualified spe-
cialist workshop, e.g. aMercedes-Benz
Service Centre.
X Remove impurities immediately, where
possible, whilst avoiding rubbing too hard.
X Soak insect remains with insect remover
and rinse off the treated areas afterwards.
X Soak bird droppings with water and rinse
off the treated areas afterwards.
X Remove coolant, brake fluid, tree resin,
oils, fuels and greases by rubbing gently
with acloth soaked in petroleum ether or
lighter fluid.
X Use tar remover to remove tar stains.
X Use silicone remover to remove wax.
! Do not affix:
R stickers
R films
R magnetic plates or similar items
to painted surfaces. You could otherwise
damage the paintwork.
Care and treatment of mattp aintwork If your vehicle has
aclear matt finish, observe
the following instructions in order to avoid
damage to the paintwork due to incorrect
care.
These notes also apply to light alloy wheels
with aclear matt finish.
! Never polish the vehicle or the light alloy
wheels. Polishing makes the paintwork
shiny. Care
287Maintenance and care Z

Cleaning th
eexhaust tail pipes Impurities combined wit
hthe effect sofroad
grit and corrosive environmental factors may
cause flash rust to form on the surface. You
can restore the original shine of the exhaust
tail pip ebycleaning it regularly ,especially in
winter and after washing.
! Do not clea nthe exhaust tail pipes with
alkaline-based cleaning agents, such as
wheel cleaner.
X Cleant he exhaust tail pipes with achrome
care product tested and approved by
Mercedes-Benz.
Cleaningt he trailer tow hitch The ball coupling must be cleaned if it
becomes dirty or corroded.
X Remove any rust using awire brush.
X Remove dirt with aclean, lint-free cloth or
ab rush.
! Do not clean the ball coupling with ahigh-
pressure cleaner. Do not use solvents. X
After cleaning, lightly oil or grease ball cou-
pling :.
X Check that the vehicle's trailer tow hitch is
working properly.
! Observe the note on care provided by the
trailer manufacturer.
i Maintenanceoft he ball coupling and
trailer tow hitch can also be performed at
aq ualified specialist workshop, e.g. a
Mercedes-Ben zService Centre. H
Environmental note
Dispose of oily and greasy cloths in an envi-
ronmentally-responsible manner. Interior care
Cleaningt he display X
Before cleaning the display, make sure that
it is switched off and has cooled down.
X Cleant he displays urface using acommer-
cially-available microfibre cloth and TFT/
LCD displayc leaner.
X Dry the displays urface usingadry micro-
fibre cloth.
! For cleaning, do not use any of the fol-
lowing:
R alcohol-based thinner or petrol
R abrasive cleaning agents
R commercially-available household clean-
ing agents
These may damage the displays urface. Do
not put pressure on the displays urface
when cleaning. This could lead to irrepara-
ble damage to the display.
Cleaningt he plastic trim G
WARNING
When cleaning the steering wheel boss and
dashboard, do not use cockpit sprays or
cleaning agents containing solvents. Cleaning
agents containing solvents cause the surface
to become porous, and as aresult plastic
parts may break away and be thrown around
the interior when an airbag is deployed, which
may result in severe injuries.
! Do not affix the following to plastic surfa-
ces:
R stickers
R films
R scented oil bottles or similar items
You could otherwise damage the plastic. Care
291Maintenance and care Z