radio MERCEDES-BENZ E-CLASS CABRIOLET 2012 Owner's Manual

Display messages Possible causes/consequences and
M Solutions
Blind Spot Assis
torActive Blind Spot Assist is temporarily inop-
erative .Possible causes:
R the sensors are dirty.
R the function is impaired due to heavy rain or snow.
R the radar sensor system is outside the operating temperature
range.
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio sta-
tions or other sources of electromagnetic radiation.
The yellow 9indicator lamps also light up in the exterior mir-
rors.
Once the causes listed above no longer apply, the display message
goes out.
Blind Spot Assist or Active Blind Spot Assist is operational again.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 177).
X Clean the sensors (Y page 317).
X Restart the engine. Blind Spot Assist
inoperative or
Active Blind Spot Assist inoperative Blind Spot Assist or Active Blind Spot Assist is faulty.
The yellow 9indicator lamps also light up in the exterior mir-
rors.
X Visit a qualified specialist workshop. Parking Guidance
inoperative Parking Guidance is malfunctioning (Y
page 203).
X Restart the engine.
If the display message continues to be displayed:
X Visit a qualified specialist workshop. Display messages
265On-board computer and displays Z

Display messages Possible causes/consequences and
M Solutions
DISTRONIC PLUS cur‐
rently unavailable
See Owner's Manual DISTRONIC PLU
Sis temporarily inoperative. Possible causes:
R the function is impaired due to heavy rain or snow.
R the sensors in the radiator trim and in the bumpers are dirty.
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio sta-
tions or other sources of electromagnetic radiation.
R the system is outside the operating temperature range.
R the on-board voltage is too low.
Aw arning tone also sounds.
Once the causes listed abov eno longer apply, the display message
goes out.
DISTRONIC is operational again.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 177).
X Clean the sensors in the radiator trim and in the bumpers
(Y page 317).
X Restart the engine. DISTRONIC PLUS
inoperative DISTRONIC PLUS is faulty.
BAS PLUS and PRE-SAFE
®
Brake may also have failed.
Aw arning tone also sounds.
X Visi taqualified specialist workshop. DISTRONIC PLUS
inactive You have depressed the accelerator pedal. DISTRONIC PLUS is no
longer controlling the speed of the vehicle.
X
Remove your foot from the accelerator pedal. DISTRONIC PLUS
--- km/h An activation condition for DISTRONIC PLUS is not fulfilled.
X
Check the activation conditions for DISTRONIC PLUS
(Y page 188). DISTRONIC PLUS and
SPEEDTRONIC DISTRONIC PLUS and SPEEDTRONIC are faulty. A warning tone
also sounds.
X Visit a qualified specialist workshop. Cruise control and
SPEEDTRONIC inop‐
erative SPEEDTRONIC and cruise control are malfunctioning.
Aw arning tone also sounds.
X Visi taqualified specialist workshop. Display messages
267On-board computer and displays Z

Key
Display messages Possible causes/consequences and
M Solutions
Â
Key does not
belong to vehicle You have put the wrong key in the ignition lock.
X
Use the correct key. Â
Replace key The key needs to be replaced.
X
Visit a qualified specialist workshop. Â
Change key batter‐
ies The batteries of the KEYLESS-GO key are discharged.
X
Change the batteries ( Ypage 79). Â
Key not detected
(red display message) The KEYLESS-GO key is not in the vehicle.
Aw
arning tone also sounds.
If the engine is switched 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 Secure the vehicle against rolling away (Y page 177).
X Locate the KEYLESS-GO key. The KEYLESS-GO key is not detected while the engine is running
because there is interference from a strong source of radio waves.
Aw
arning tone also sounds.
X Pull ove rand stop the vehicle safely as soo nas possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 177).
X Operate the vehicle with the key in the ignition lock if necessary. Â
Key not detected
(white display mes-
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 Operate the vehicle with the key in the ignition lock if necessary. Â
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. 274
Display messagesOn-board computer and displays

Mobile phone
Important safety notes G
WARNING
Observe the legal requirements of the country
in which you are currently driving regarding
operating mobile communications equipment
in a vehicle.
If it is permitted by law to operate communi-
cations equipment while the vehicle is in
motion, you must only do so if the traffic sit-
uation permits. Otherwise, you could be dis-
tracted from the traffic conditions, cause an
accident and injure yourself and others.
Two-way radios and fax equipment used with-
out low-reflectio nexterior aerials can inter-
fere with the vehicle's electronics and thereby
jeopardise the operating safety of the vehicle
and your safety .Therefore, you must only use
this equipment if it is correctly connected to
a separate reflection-free exterior aerial. G
WARNING
Excessive levels of electromagnetic radiation
may cause damage to your health and the
health of others. Using an exterior aerial takes
into account current scientific discussions
relating to the possible health risk posed by
electromagnetic fields.
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 a wireless device to the exterior.
R the field strength in the vehicle interior is
lower than in a vehicle that does not have
an exterior aerial. i
There are various mobile phone brackets
that may be fitted in your vehicle; in some
cases, these are country-specific.
i You can connect a Bluetooth ®
-capable
mobile phone with Audio 20, Audio 50 or
COMAND Online via the Bluetooth ®
inter-
face. This also applies if your vehicle is
equipped with convenience telephony.
More information on suitable mobile phones,
mobile phone brackets and on connecting
Bluetooth ®
-capable mobile phones with
Audio 20, Audio 50 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 services available when
you use the phone depend on your mobile
phone model and service provider.
Using amobile phone 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.
X
Open the telephone compartment
(Y page 287).
X Place the mobile phone bracket into the
pre-installed fitting (see the separate
installation instructions for the mobile
phone fitting).
X Inser tthe mobile phone into the mobile
phone bracket (see the separate installa-
tion instructions for the mobile phone fit-
ting).
i On some mobile phone brackets, you first
have to connect the mobile phone via Blue-
tooth ®
to the mobile phone bracket (see
the separate operating instructions for the
mobile phone bracket).
If this is the case, the mobile phone does
not have to be inserted into the bracket for
you to be able to use the telephone func- 296
FeaturesStowing and features

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 drive remote control A.This can usu-
ally be found on the back of the remote
control.
R Replace the batteries in garage door
remote control A.This increases the like-
lihood that garage door remote control A
will transmit a strong and precise signal to
the integrated garage door opener in the
rear-view mirror.
R When programming, hold remote control
A at varying distances and angles from the
button which you are programming. Try var-
ious angles at a distance between 5and
30 cm or at the same angle but at 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 garage door drive remote control
A.
R Note that some remote controls transmit
only for a limited period (the indicator lamp
on the remote control goes out). Press but-
ton Bon remote control Aagain before
transmission ends.
R Align the aerial cable of the garage door
opener unit. This can improve signal recep-
tion/transmission.
Opening or closing the garage door Once programmed, the integrated garage
door opener will assume the function of the
garage door system's remote control. Please
also read the operating instructions for the
garage door system. X
Turn the key to position 2in the ignition
lock.
X Press button ;,=or? which you have
programmed to operate the garage door.
Garage door system with a fixed code: indi-
cator lamp :lights up green.
Garage door system with a rolling code:
indicator lamp :flashes green.
i The transmitter will transmit a signal for
as long as the button is pressed. The trans-
mission is halted after a maximum of ten
seconds and indicator lamp :lights up
yellow. Press button ;,=or? again if
necessary.
Clearing the memory X
Turn the key to position 2in the ignition
lock.
X Press buttons ;and ?.
The indicator lamp lights up yellow.
X Press and hold buttons ;and ?until the
indicator lamp turns green.
i Make sure that you clear the memory of
the integrated garage door opener before
selling the vehicle.
Frequencies Europe
Country Radio type approval num-
ber
Frequency range (MHz)
AD (Andorra) 20 July
MHz: 27, 30, 40, 433, 868
AT (Austria) Article 6 of Directive
1999/5/EC R&TTE 18 May
05
MHz: 27, 40, 433, 868
BE (Belgium) Article 6 of Directive
1999/5/EC R&TTE 18 May
05
MHz: 27, 40, 433, 868 Features
299Stowing and features Z

Country Radio type approval num-
ber
Frequency range (MHz)
BG (Bulga-
ria) Article 6 of Directive
1999/5/E
CR&TTE 12 April
07
MHz: 27, 40, 433, 868 CH (Switzer-
land) Article 6 of Directive
1999/5/EC R&TTE14357
27 May 05
MHz: 27, 40, 433, 868
CY (Cyprus) Article 6 of Directive
1999/5/EC R&TTE 5 May
05
MHz: 27, 40, 433, 868
CZ (Czech
Republic) General Licence GL-30/R/
2000 Reg. No. 844 13 May
05
MHz: 27, 40, 433
DK (Den-
mark) Article 6 of Directive
1999/5/EC R&TTE 20 April
05
MHz: 27, 40, 433, 868
DE (Ger-
many) Article 6 of Directive
1999/5/EC
R&TTE7519301 29 April 05
MHz: 27, 40, 433, 868
EE (Estonia) Article 6 of Directive
1999/5/EC R&TTE 11 May
05
MHz: 27, 40, 433, 868
ES (Spain) 000438/2005,
000439/2005,
000440/2005
000441/2005,
000445/2005,
000446/2005
000447/2005
MHz: 27, 40, 433, 868 Country Radio type approval num-
ber
Frequency range (MHz)
FI (Finland) Article 6 of Directive
1999/5/EC R&TTE10668
13 May 05
MHz: 27, 40, 433, 868
FR (France) Article 6 of Directive
1999/5/EC R&TTE10668
13 May 05
27, 30, 40, 433, 868
GI (Gibraltar) Article 6 of Directive
1999/5/EC R&TTE13 May
05 (UK)
MHz: 27, 40, 418, 433, 868
GR (Greece) Article 6 of Directive
1999/5/EC
R&TTE11409/18/4/2005
18 May 05
MHz: 27, 40, 433, 868
HR (Croatia) SDR 224/06
MHz: 27, 40, 433, 868
HU (Hun-
gary) Article 6 of Directive
1999/5/EC R&TTE 18 May
05
MHz: 27, 40, 433, 868
IC (Canary
Islands) 000438/2005,
000439/2005
000440/2005,
000441/2005
000445/2005,
000446/2005
000447/2005, 3rd June
2005
MHz: 27, 40, 433, 868
IE (Ireland) Article 6 of Directive
1999/5/EC R&TTE 18 May
05
MHz: 27, 40, 433, 868300
FeaturesStowing and features

Country Radio type approval num-
ber
Frequency range (MHz)
IS (Iceland) Article 6 of Directive
1999/5/EC R&TTE 18 May
05
MHz: 27, 40, 433, 868 IT (Italy) DGPGSR/II/347487/
FOR/15347
DGPGSR/II/347487/
FOR/15348
DGPGSR/II/347487/
FOR/15350
DGPGSR/II/347487/
FOR/15357
DGPGSR/II/347487/
FOR/15358
DGPGSR/II/347487/
FOR/15359
MHz: 27, 40, 433, 868
LI (Liechten-
stein) Article 6 of Directive
1999/5/EC R&TTE 14357
27 May 05
MHz: 27, 40, 433, 868
LT (Lithua-
nia) Article 6 of Directive
1999/5/EC
R&TTE27.4-1B-1609 6 May
05
MHz: 27, 40, 433, 868 LU (Luxem-
bourg) Article 6 of Directive
1999/5/EC
R&TTE150405/9538 24
May 05
MHz: 27, 40, 433, 868 LV (Latvia) Article 6 of Directive
1999/5/EC R&TTE
27.4-1B-1609 26 April 06
MHz: 27, 40, 433, 868 Country Radio type approval num-
ber
Frequency range (MHz)
MC (Mon-
aco) Article 6 of Directive
1999/5/EC R&TTE10668
13 May 05
MHz: 27, 40, 433, 868
MT (Malta) Article 6 of Directive
1999/5/EC R&TTE 18 May
05
MHz: 27, 40, 433, 868
NL (Nether-
lands) Article 6 of Directive
1999/5/EC R&TTE 18 May
05
MHz: 27, 40, 433, 868
NO (Norway) Article 6 of Directive
1999/5/EC
R&TTE05/02424-SA64
418
May 05
MHz: 27, 40, 433, 868 PL (Poland) Article 6 of Directive
1999/5/ECR
&TTE 21 April
05
MHz: 27, 40, 433, 868 PT (Portugal) ANCOM-S08399/05
27, 40, 433, 868
RO (Roma-
nia) Article 6.4 of Directive
1999/5/EC R&TTE
MHz: 27, 30, 40, 433, 868
RU (Russian
Federation) POCC DE.MJ05.H00015 13
May 05
MHz: 433
SE (Sweden) Article 6 of Directive
1999/5/EC R&TTE 18 May
05
MHz: 27, 40, 433, 868 Features
301Stowing and features Z

Country Radio type approval num-
ber
Frequency range (MHz)
SI (Slovenia) Article 6 of Directive
1999/5/EC R&TTE
500-1/2005-437 9 May 05
MHz: 27, 40, 433, 868
SK (Slova-
kia) Article 6 of Directive
1999/5/EC R&TTE
Slovak
206/11/2005 4 May 05
MHz: 27, 40, 433, 868
UK (United
Kingdom) Article 6 of Directive
1999/5/EC R&TTE 18 May
05
MHz: 27
,40, 418, 433, 868 Africa
Country Radio type approval num-
ber
Frequency range (MHz)
EG (Egypt) W-KLE-17/08 Mar. 06
MHz: 27, 30, 40, 418, 433,
868
RE (Réunion) Article 6 of Directive
1999/5/EC R&TTE 11 July
05
MHz: 27, 40, 433, 868
ZA (South
Africa) 11 October 2005
MHz: 27, 40, 433
America
Country Radio type approval num-
ber
Frequency range (MHz)
BB (Barba-
dos) Registration not required
MHz: 27, 40, 433, 868
CL (Chile) 38447/F-23 No.3.3634
MHz: 40, 433 Country Radio type approval num-
ber
Frequency range (MHz)
GF (French
Guyana) Article 6 of Directive
1999/5/EC R&TTE10668
13 May 05
MHz: 27, 30, 40, 433, 868
GP (Guade-
loupe) Article 6 of Directive
1999/5/EC R&TTE10668
13 May 05
MHz: 27, 30, 40, 433, 868
MQ (Martini-
que) Article 6 of Directive
1999/5/EC R&TTE 11 July
05
MHz: 27, 30, 40, 433, 868
MX (Mexico) MHz: 280 to 390
Asia
Country Radio type approval num-
ber
Frequency range (MHz)
AE (United
Arab Emi-
rates) 1623/5/10-2/26/76
MHz: 433
JO (Jordan) TRC/LPD/2005/23
MHz: 27, 30, 40, 433, 868
KW (Kuwait) 5 October 2005
MHz: 27, 30, 40, 418, 433,
868
LB (Leba-
non) 2920/O&M/2006 / 3 July
05
MHz: 27, 40, 433, 868
SA (Saudi
Arabia) 11_02_05/5024-5-6
MHz: 418, 433
SY (Syria) 279/4/14 / 05 March 06
TR (Turkey) National Certification 23
July 07
MHz: 433302
FeaturesStowing and features

Australia
Country Radio type approval num-
ber
Frequency range (MHz)
AU (Aus-
tralia) 28 June
MHz: 27, 30, 40
,433, 868 NZ (New
Zealand) 20 March 06
MHz: 27, 30, 40, 433
Floormat on the driver's side
G
WARNING
Make sure that there is sufficient clearance
around the pedals whe nfloormats are used,
and that the floormats are properly secured.
The floormats must be correctly secured at all
times using the securing knob and retainers.
Before you drive off, chec kthe floormats and
secure them if necessary. Afloormat which is
not properly secured can slip and thereby
interfere with the movemen tofthe pedals.
Do not place floormats on top of one another. X
Slide the seat backwards.
X To fit: lay the floormat in the footwell.
X Press studs :onto retainers ;.
X To remove: pull the floormat from retain-
ers ;.
X Remove the floormats. Retrofitted anti-glare film
Retrofitted anti-glare film on the inside of the
windows can interfere with radio/mobile
telephone reception. This is particularly the
case for conductive or metallic-coated films.
You can obtain information about anti-glare
film from a qualified specialist workshop. Features
303Stowing and features Z

Jump-starting
G
WARNING
There is a risk of acid burns when jump-starting a vehicle due to the gases which escape from
the battery. Do not lean over the battery while the engine is being jump-started. G
WARNING
Gases escaping from the battery during jump-starting may cause minor explosions. Avoid cre-
ating sparks. Keep naked flames away from the battery, and do not smoke.
Comply with the important safety precautions when handling batteries. You will find these under
"Battery (vehicle) -important safety notes" in the index. G
WARNING
Non-combusted fuel can collect in the exhaust system and ignite. There is a risk of fire. Avoid
repeated and lengthy starting attempts.
! Vehicles with apetrol engine: avoid repeated and lengthy starting attempts. Otherwise,
the non-combusted fuel may damage the catalytic converter.
Do not use a rapid charging device to start th evehicle. If your vehicle's battery is discharged,
the engine can be jump-started from another vehicle or from a second battery using jump
leads. Observe the following points:
R The battery is not accessible in all vehicles. If the other vehicle's batter yis not accessible,
jump-start the vehicle using a second battery or ajump-starting device.
R vehicles with apetrol engine: only jump-star tthe vehicle when the engine and exhaust
system are cold.
R do not start the engine if the battery is frozen. Let the battery thaw first.
R jump-starting may only be performed from batteries with a nominal voltage of 12 V.
R only use jump leads that have a sufficient cross-section and insulated terminal clamps.
R if the battery is fully discharged, leave the battery that is being used to jump-start connected
for a few minutes before attempting to start. This charges the empty battery a little.
R make sure that the two vehicles do not touch.
Make sure that:
R The jump leads are not damaged.
R Non-insulated parts of the terminal clamps do not come into contact with other metal parts
while the jump leads are connected to the battery.
R the jump leads cannot come into contact with parts such as the V-belt pulley or the fan.
These parts move when the engine is started and while it is running.
X Firmly depress the parking brake.
X Manual transmission: engage neutral.
X Automatic transmission: move the selector lever toP.
X Switch off all electrical consumers (e.g. radio, blower, etc.).
X Open the bonnet (Y page 307). Jump-starting
331Breakdown assistance Z