ignition MERCEDES-BENZ E-CLASS CABRIOLET 2011 Manual Online

Display messages Possible causes/consequences and
M Solutions
The sof
ttop has been opened and closed several times in arow.
The soft-top drive has been switched off automatically for safety
reasons.
You can open and close the soft top again after approximately ten
minutes.
X Switch off the ignition and turn it back on.
X Repeat the opening or closing procedure (Y page 86).¥
Top
up washer fluid The washer fluid level in the washer fluid reservoir has dropped
below the minimum.
X
Top up the washer fluid (Y page 284).Key
Display messages Possible causes/consequences and
M Solutions
+
Key does not
belong to vehicle You have put the wrong key in the ignition lock.
X
Use the correc tkey. +
Replace key The key needs to be replaced.
X
Visit aqualified specialist workshop. +
Change key batter‐
ies The batteries of the KEYLESS-GO key are discharged.
X
Change the batteries (Y page 74).+
Key not detected
(Red display message) The KEYLESS-GO key is not in the vehicle.
Aw
arning tone also sounds.
If th eengineiss witched off ,you can no longer loc kthe vehicle
centrally or start the engine.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Apply the parking brake.
X Locate the KEYLESS-GO key. Display messages
253On-board computer and displays Z

Display messages Possible causes/consequences and
M Solutions
The KEYLESS-GO ke
yisnot detecte dwhile the engin eisrunning
because ther eisinterference from astrong source of radio waves.
Aw arning tone also sounds.
X Pull ove rand stop the vehicl esafelyass oonasp ossible,p aying
attention to road and traffic conditions.
X Apply the parking brake.
X Operate the vehicle with the key in the ignition lock if necessary. +
Key not detected
(White displaym
es-
sage) The KEYLESS-GO key cannot be detected at present.
X
Change the location of the key with the KEYLESS-GO functions
in the vehicle.
If the KEYLESS-GO key is still not detected:
X Change the location of the key with the KEYLESS-GO functions
in the vehicle.
X Operate the vehicle with the key in the ignition lock if necessary. +
Key still in vehi‐
cle The KEYLESS-GO key has been detected inside the vehicle during
locking.
X
Remove the KEYLESS-GO key from the vehicle. +
Remove starting
button, then
insert key KEYLESS-GO is temporarily malfunctioning or is defective.
Awarn-
ing tone also sounds.
X Inser tthe keyintot he ignition loc kand tur nittot hedesired
position.
X Visi taq ualified specialist workshop. +
Close doors to
lock vehicle At least one door is open.
Awarning tone also sounds.
X Close all door sand loc kthe vehicle again. 254
Display messagesOn-board computer and displays

Engine
Problem Possible causes/consequences and
M Solutions
;
The yellow engin
ediag-
nostics warning lamp
light supw hile the
engin eisrunning. Ther
emay be afault ,for example:
R in th eenginem anagement
R in th efuel injection system
R in th eexhaust system
R in th eignition system (for vehicle swith petrol engines)
R in th efuel system
The emission limit values may be exceeded and th eenginem ay
be runnin ginemergenc ymode.
X Hav ethe vehicle checked as soon as possible at aqualified
specialist workshop. Vehicle
swithad ieseleng ine: th efuel tan khas been run dry
(Y page 164).
X Start th eenginet hree to four times after refuelling.
If th eyellow engin ediagnostics warning lamp goes out ,emer-
gency runnin gmodeisc ancelled. The vehicle need no tbe
checked. 8
The yellow reserve fuel
warning lamp lights up
whil
ethe engine is run-
ning. The fue
llev el ha sdroppe dinto the reserve range.
Operation of the auxiliary heating is deactivated when the fue llev el
drops into the reserve range.
X Refue latthe nearest filling station. ?
The red coolant warn-
ing lamp lights up while
the engine is running
and the coolant tem-
perature gaug
eisatthe
star toft he scale. The temperature sensor for the coolant temperature gauge is
faulty.
The coolant temperature is no longer being monitored. There is a
risk of engine damage if the coolant temperature is too high.
X
Stop the vehicle immediately, paying attention to road and traf-
fic conditions, and switch off the engine. Do not continue driving
under any circumstances.
X Apply the parking brake.
X Consult aqualified specialist workshop. 260
Warning and indicator lampsint
he instrument clusterOn-board computer and displays

Example: Coupé
:
Mirror light
; Bracket
= Retaining clip, e.g .for ac ar park ticket
? Vanity mirror
A Mirror cover
Vanity mirro rint he sun visor Mirror light
:onlyfun ctions if the su nvisor
is clipped into retainer ;and mirror cover
A hasb eenf olde dup.
Glare from the side X
Fol dd ownthe su nvisor.
X Pull the sun visor out of retainer ;.
X Swin gthe sun visor to the side. Rea
rwindow roller sunblind (Coupé)
Extending/retracting th eroller sun-
blind !
Make sure that the roller sunblin dcan
move freely. Otherwise, the roller sunblind
or other object scould be damaged. X
Turn the key to position 2in the ignition
lock.
X To extend or retract: briefly press but-
ton :.
The roller sunblin dfully extends or fully
retracts. Ashtray
Ashtra yinthefront-compartment
centr econsole i
You can remove the ashtray inser tand
us et he resulting compartment for stow-
age.
! The stowag espace under the ashtra yis
not hea tresistant. Befor eplacing lit ciga-
rettes in the ashtray, make sure that the
ashtray is properly engaged. Otherwise, the
stowage space could be damaged. Features
271Stowing and features Z

X
To open: slidecover :forwards unti lit
engages.
X To remove the insert: holdinsert =by
the ribbing at the side sand lift it up ;and
out.
X To refi tthe insert: press insert =into the
holder until it engages.
X To close: press cover :briefly at the
front.
The cover moves back.
Ashtray in the rear-compartment centre
console X
To open: pullcover ;out by its top edge.
X To remove the insert: press release but-
ton =and lift the insert up and out.
X To fit the insert: fit insert:from above
into the holder and press dow ninto the
holde runtil it engages. Cigarette lighter
G
WARNING
Onl yholdt he hot cigarette lighte rbyitsknob.
Otherwise ,you might burn yourself.
Mak esuret hatc hildren travellin ginthevehi-
cle are no table to injure themselves on the
hot cigarette lighter or cause afire with it. X
Turn the key to position 2in the ignition
lock.
X To open: slide cover :forwards until it
engages.
X Press in cigarette lighter ;.
Cigarett elighter ;will pop out automati-
cally when the heating element is red-hot.
X To close: press cover :briefly at the
front.
The cover moves back. 12
Vsockets
Point stoo bserve befor euse The socket
scan be used for accessories ,e.g.
lamps or mobile phon echargers with amax-
imum curren tdraw of 18 0W(15 A).
If you use th esocket sfor lon gperiods when
th ee ngine is switche doff,t he battery may
discharge.
X Turn the key to position 1in the ignition
lock.
i An emergency cut-offe nsures thatthe on-
board voltage does not drop too low. If the
on-board voltage is too low, the power to
the socketsisa utomatically cut. This
ensures that there is sufficient power to
start the engine. 272
FeaturesStowing and features

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

X
To fold the bracket up: press button:.
X To fold the bracket down: press the
bracket down and allo wittoengage. Garag
edooro pener
Important safety notes The HomeLink
®
garage door opene rintegra-
ted in the rear-view mirror allows yo utooper-
ate up to thre edifferent door and gate sys-
tems.
i The garage door opene risonly available
for certain countries. Observe the legal
requirements in each country.
The HomeLink ®
garage door opener is
compatible with most European garage and
gate opener drives. More information on
HomeLink ®
and/or compatible products is
available from:
R any Mercedes-Benz Service Centre
R the HomeLink ®
hotline
(0) 08000 466 354 65 (free of charge) or
+49 (0) 6838 907 277 (charges apply)
R on the Internet at:
http://www.homelink.com
Programming the integrated garage
door opener in the rear-view mirror Programming
G
WARNING
Only press the transmitter button on the inte-
grated garage door opener if there are no per- sons or objects present within the sweep of
the garage door. Persons could otherwise be
injured as the door moves. Integrated garage door opener in the rear-view mir-
ror (example: Coupé)
Garaged oor remote control Ais not part of
this integrated garage door opener.
i To achieve the best results, insert new
batteries in garage door remote control
A before programming.
X Before programming for the first time, clear
the memory of the integrated garage door
opener (Y page 277).
X Turn the key to position 2in the ignition
lock.
X Press and hold one of transmitter but-
tons ;to? on the integrated garage door
opener.
After ashort time, indicator lamp :starts
flashing yellow.
i Indicator lamp :flashes yellow immedi-
ately the first time that the transmitter but-
ton is programmed. If this transmitter but-
ton has already been programmed, indica-
tor lamp :only starts flashing yellow after
10 seconds have elapsed.
X Release the transmitter button.
X Point transmitter button Bof garage door
remote control Atowards the transmitter
buttons on the rear-view mirror at adis-
tance of 5to20c m.
i The required distance between garage
door remote control Aand the integrated Features
275Stowingand features Z

door opener depends on the garage door
drive system. You might require several
attempts
.You should test every position for
at least 25 seconds before trying another
position.
X Press and hold transmitter button Bon
garage door remote control Auntil indi-
cator lamp :lights up green.
The programming has been successful if
indicator lamp :lights up or flashes
green.
X Release transmitter button ;,=or? on
the integrated garage door opener and the
transmitter button on garage door remote
control B.
If indicator lamp :lights up red:
X Repeat the programming procedure for the
transmitter buttons. When doing so, vary
the distance between the garage door drive
remote control and the rear-view mirror.
i If the indicator lamp flashes green after
successful programming, the garage door
system is using arolling code. After pro-
gramming, you must synchronise the
garage door opener integrated in the rear-
view mirror with the receiver of the garage
door system.
Synchronising the rolling code
Your vehicle must be within reach of the
garage or gate opener drive. Make sure that
neither your vehicle nor any persons/objects
are present within the sweep of the door or
gate.
Observe the safety notes when performing
the rolling code synchronisation.
X Turn the key to position 2in the ignition
lock.
X Press the programming button of the door
or gate drive (see the door or gate drive
operating instructions, e.g. under "Pro-
gramming of additional remote controls"). i
Usually ,you now have 30 seconds to ini-
tiate the next step.
X Press the previously programmed button of
the integrated HomeLink ®
garage door
opener repeatedly until the door startsto
move.
The rolling code synchronisation is then
complete.
Problems when programming
If you have problems when programming the
integrated garage door opener, please note
the following:
R check the transmitter frequency of garage
door remote control A(this can usually be
found on the rear of the remote control).
R change the batteries in garage door remote
control A.This increases the likelihood
that garage door remote control Awill
send astronga nd precise signal to the
integrated remote control in the rear-view
mirror.
R when programming, hold garage door
remote control Aat different distances
and angles from the transmitter button that
you are programming. Try various angles at
ad istance of between 5and 30 cm or the
same angle but varying distances.
R if there is another remote control for the
same garage door drive, perform the pro-
gramming steps again using this remote
control. Before performing these steps,
make sure that new batteries have been
fitted in the garage door drive remote con-
trol.
R note that some remote controls transmit
only for alimited period (the indicator lamp
on the remote control goes out). Press the
button on the remote control again before
transmission ends.
R align the aerial cable of the garage door
opener unit. This can improve signal recep-
tion/transmission. 276
FeaturesStowing and features

Opening or closing the garage door
Oncep
rogrammed, the integrated garage
door opener will assume the function of the
garage door system's remot econtrol. Please
also read the operatin ginstructions for the
garage door system.
X Turn the key to position 2in the ignition
lock.
X Press overhead control panel transmitter
button ;,=or? that you have pro-
grammed to operate the garage door.
Garage door system with afixed code: indi-
cator lamp :lights up green.
Garage door system with arolling code:
indicator lamp :flashes green.
i The transmitter will transmit asignal for
as long as the transmitter button is
pressed. The transmission is halted after a
maximum of 10 seconds, and indicator
lamp :flashes yellow. Press the transmit-
ter button again, if necessary.
Clearing the memory of the integrated
garage door opener in the rear-view mir-
ror X
Turn the key to position 2in the ignition
lock.
X Press transmitter buttons ;and ?.
The indicator lamp lights up yellow.
X Press and hold transmitter buttons ;
and ?until the indicator lamp turn sgreen.
i Make sure that you clear the memory of
the integrated garage door opener before
selling the vehicle. Features
277Stowing and features Z

If you push the lidsb
ack, you willnotice a
resistance.
X Release bonnet :.
X Check whether the lidsofb onnet lifter;
are resting on housings =(arrow).
X The lids of bonnet lifter ; are resting
on the housings: close bonnet:
(Y page 282).
or
X The lids of bonnet lifter ; are not rest-
ing on the housings: first lift up bon-
net :on left-hand side ?and then on
right-hand side B.Lift up bonnet :until
the respective lid of bonnet lifter ;no lon-
ger moves.
The lidsofb onnet lifter;must rest on
housings =(arrow).
X Close bonnet :(Ypage 282).
If you cannot close bonnet :or the L
symbola ppears in the multifunction display,
repeatt he steps. G
WARNING
If the bonnet can still not be engaged properly
or the Lsymbol appears in the multifunc-
tion display,don ot continue driving. The bon-
net can then open when the vehicle is in
motion and obscure your field of vision. Con-
sult aqualified specialist workshop. Other-
wise, you may cause an accident and injure
yourself and others.
Opening the bonnet G
WARNING
Do not pull the release lever while the vehicle
is in motion. If you do so, the bonnet may open
up and block your view. G
WARNING
There is arisk of injury if the bonnet is open,
even if the engine is not running.
Some engine components can become very
hot. To avoid the risk of burns, only touch those
components described in the Owner's Manual
and observe the relevant safety notes.
G
WARNING
The radiator fan between the radiator and the
engine can start automatically, even if the key
has been removed from the ignition lock. For
this reason, you must not reach into the fan
rotation area. You could otherwise be injured.
Vehicles with apetrol engine: The elec-
tronic ignitio nsystem uses high voltage. For
this reason ,you mus tnever touch ignition
system components( ignition coil, ignition
cables, spark plug connectors or test socket)
while:
R the engine is running
R the engine is being started
R the ignition is switched on and the engine
is being cranked by hand
You could otherwise suffer an electric shock
and be seriously or even fatally injured.
Vehicles with adiesel engine: The elec-
tronic injection control uses high voltage. For
this reason ,you must never touc hinjection
system components while:
R the engin eisrunning
R the engin eisbeing started
R the ignition is switched on
You could otherwise suffer an electric shock
and be seriously or even fatally injured.
X Make sure that the windscreen wipers are
switched off. G
WARNING
The windscreen wipers and wiper linkage
could be set in motion.
When the bonnet is open, you or others could
be injured by the wiper linkage.
Make sure that the windscreen wipers are
switched off. Remove the key or make sure
that no ignition position has been selected
with KEYLESS-GO. All indicator lamps must be
off in the instrumen tpanel. Engine compartment
281Maintenance and care Z