
Display messages
Possible causes/consequences and
0050
0050Solutions The yellow
0024warning lamp lights up. If you manually apply or
release the electric parking brake, the red 0049(USA only)/ 0024
(Canada only) indicator lamp flashes.
The electric parking brake is malfunctioning. It is not possible to
apply the electric parking brake manually.
X Shift the transmission to Pas the electric parking brake is not
being applied automatically.
X Visit a qualified specialist workshop. 0049(USA
only)0024
(Canada
only)
Parking Parking Brake
BrakeInop‐
Inop‐
erative
erative The yellow
0024warning lamp lights up. The red 0049(USA
only)/ 0024(Canada only) indicator lamp flashes for about ten
seconds after the electric parking brake has been applied or
released. It then goes out or remains lit.
The electric parking brake is malfunctioning, e.g. because of over-
voltage or undervoltage.
X Remove the cause for the overvoltage or undervoltage, e.g. by
charging the battery or restarting the engine.
X Engage or release the electric parking brake.
If it remains impossible to apply or release the electric parking
brake:
X Switch off the ignition and turn it back on.
X Engage or release the electric parking brake.
If the electric parking brake still cannot be released: X Consult a qualified specialist workshop.
If the electric parking brake still cannot be applied: X Visit a qualified specialist workshop. The yellow
0024warning lamp lights up and the red 0049(USA
only)/ 0024(Canada only) indicator lamp flashes.
It is not possible to apply the electric parking brake manually.
X Shift the transmission to P.
X Visit a qualified specialist workshop. 0049(USA
only)0024
(Canada
only)
Turn On the Igni‐ Turn On the Igni‐
tion to Release tion to Release
the Parking Brake the Parking Brake The red
0049(USA only)/0024 (Canada only) indicator lamp lights
up.
You attempted to release the electric parking brake while the igni-
tion was switched off.
X SmartKey: turn the SmartKey to position 1in the ignition lock.
X KEYLESS-GO: switch on the ignition. Display
messages
245On-board computer and displays Z

Display messages
Possible causes/consequences and
0050
0050Solutions 003D
See See
Operator's
Operator's Man‐
Man‐
ual
ual The battery is not being charged.
A warning tone also sounds.
Possible causes are:
R a defective alternator
R a torn poly-V-belt
R a malfunction in the electronics
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
! Do not continue driving. The engine could otherwise overheat.
X Secure the vehicle against rolling away (Y page 171).
X Consult a qualified specialist workshop. 003D
Stop Vehicle See Stop Vehicle See
Operator's Manual Operator's Manual The battery is no longer being charged and the battery charge level
is too low.
A warning tone also sounds.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 171).
X Observe the instructions in the display message 003DSee
See
Operator's Manual Operator's Manual .
X Consult a qualified specialist workshop. 003D
Start Engine See Start Engine See
Operator's Manual Operator's Manual The engine is switched off and the battery charge level is too low.
X Switch off electrical consumers that you do not need, such as
the rear window defroster and interior lighting.
X Leave the engine running for a few minutes or drive a long dis-
tance.
The battery is being charged. Display
messages
255On-board computer and displays Z

Vehicle
Display messages
Possible causes/consequences and
0050
0050Solutions Shift
Shift
to
to'P'
'P' or
or'N'
'N'
to Start Engine
to Start Engine You have attempted to start the engine with the transmission in
position
Ror D.
X Shift the transmission to position Por N. Apply Brake Apply Brake
to Shift from 'P' to Shift from 'P' You have attempted to move the transmission selector lever to
position
D,Ror Nwithout depressing the brake pedal.
X Depress the brake pedal. Auxiliary Battery Auxiliary Battery
Malfunction Malfunction The auxiliary battery for the automatic transmission is no longer
being charged.
X Visit a qualified specialist workshop at the next opportunity.
X Until then, set the automatic transmission to position Pbefore
you switch off the engine.
X Before leaving the vehicle, apply the electric parking brake.
X Secure the vehicle against rolling away (Y page 171).Transmission Not
Transmission Not
in P in P
Risk of Vehicle Risk of Vehicle
Rolling Away Rolling Away The driver's door is open and the transmission is in position
R,N or
D.
A warning tone also sounds.
G WARNING
The vehicle may roll away.
There is a risk of an accident. X Shift the transmission to position P.
X Secure the vehicle against rolling away (Y page 171).Service Required Service Required
Do Do
Not
Not Shift
Shift Gears
Gears
Visit Dealer
Visit Dealer You cannot change the transmission position due to a malfunction.
A warning tone also sounds.
If transmission position Dis selected:
X Drive to a qualified specialist workshop without shifting the
transmission from position D.
If transmission position R,Nor Pis selected:
X Notify a qualified specialist workshop or breakdown service. Only Shift Only Shift
to 'P' when Vehi‐ to 'P' when Vehi‐
cle is Stationary cle is Stationary The vehicle is moving.
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Shift the transmission to position P. Display messages
265On-board computer and displays Z

SmartKey
Display messages
Possible causes/consequences and
0050
0050Solutions 00AF
Key Does Not Key Does Not
Belong to Vehicle Belong to Vehicle You have put the wrong SmartKey in the ignition lock.
X Use the correct SmartKey. 00AF
Take Take
Your
YourKey
Keyfrom
from
Ignition
Ignition The SmartKey is in the ignition lock.
X Remove the SmartKey. 00AF
Obtain a New Key Obtain a New Key The SmartKey needs to be replaced.
X Visit a qualified specialist workshop. 00AF
Replace Replace
Key
KeyBattery
Battery The batteries of the KEYLESS-GO key are discharged.
X Change the batteries (Y page 85).00AF
Don't Forget Your Don't Forget Your
Key Key The display message is shown for a maximum of 60 seconds and
is only a reminder.
You have opened the driver's door with the engine switched off.
The KEYLESS-GO key is not in the ignition lock.
X Remember to take the KEYLESS-GO key with you when you
leave the vehicle. 00AF
Key Not Detected Key Not Detected
(red display message) The KEYLESS-GO key is not in the vehicle.
A warning tone also sounds.
If the engine is switched off, you can no longer lock the 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 171).
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.
A warning tone also sounds.
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 171).
X Operate the vehicle with the SmartKey in the ignition lock. 268
Display messagesOn-board computer and displays

Updating the digital map
Important safety notes
G
WARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. Inhaling
these exhaust gases leads to poisoning. There is a risk of fatal injury. Therefore never leave
the engine running in enclosed spaces with-
out sufficient ventilation.
Introduction
The digital maps generated by the map soft-
ware become outdated in the same way as
conventional road maps. Optimal route guid-
ance can only be provided by the navigation
system in conjunction with the most up-to-
date map software.
Information about new versions of the digital map can be obtained from an authorized
Mercedes-Benz Center. You can have the dig-
ital map updated there with a DVD, or you can
update it yourself.
Carrying out a manual update
i The update process can take a long time
(over an hour), depending on the size of the digital map. During this time, you will only
be able to switch on radio mode and to
accept incoming calls. The update will be
completed more quickly if the vehicle is
stationary.
If you start the update with the engine
switched off and the starter battery has
insufficient power, COMAND may automat-
ically switch off. This protects the battery. If this occurs, restart the update with the
engine running.
X Insert the DVD (Y page 445).
COMAND checks whether the digital map
on the DVD is compatible with the naviga-
tion system and system software.
A prompt then appears asking if you want
to install the database. Versions of the database currently installed and the data-
base that is to be installed are displayed.
X Select Yes
Yes orNo No and press 0098to confirm.
After selecting Yes
Yes, an activation code
must be entered when installing a database
for the first time. You will receive the acti-
vation code when you buy the navigation
DVD.
If you select No No, the process will be can-
celed.
X Enter the activation code.
After entering the activation code cor-
rectly, COMAND starts updating the digital
map. Once the update is finished, you will
see a message.
X To confirm the message: press0098the
COMAND controller.
X Take the DVD out of the slot.
While the update is running, you will see a
message to this effect and a progress bar.
The navigation system is not operational
until the update is complete.
i You cannot eject the DVD during the
update. If you switch off COMAND during
the update, the update is interrupted. It
then continues from where it was interrup-
ted when the system is restarted.
COMAND may prompt you to change the DVD during the update.
X Press the 0062load/eject button.
X Take the DVD out of the slot.
X Insert the requested DVD.
Once the update has been successfully
completed, you will see a message to this
effect.
X To confirm the message: press0098the
COMAND controller.
X Take the DVD out of the slot.
The update is complete.
If the update is not successfully completed, you will see a message that the map updateis not possible. Navigation
375COMAND Z

Call disconnection while the vehicle is
in motion A call may be disconnected if:
R there is insufficient network coverage in
certain areas.
R you move from one transmitter/receiver
area (cell) into another and no channels are
free.
R you use a SIM card which is not compatible
with the network available.
Operating options You can operate the telephone by:
R using the COMAND controller:
turn 00790052007A
slide 009500520096 or009700520064
press 0098
R using the 0061or0076 button and using
the telephone keypad on COMAND
R using the 0061or0076 button on the mul-
tifunction steering wheel
R using the Voice Control System (see the
separate Voice Control System operating
instructions)
Unless stated otherwise, the descriptions and illustrations in this section refer to COMAND.
Function restrictions The telephone is not ready for use in the fol-
lowing situations:
R The telephone automatically tries to log on
to a network. If no network is available, you may not be able to make a "911 " emer-
gency call. If you attempt to make an out-
going call, the No Service
No Service message will
appear for a short while.
"911" emergency call The 911 emergency call is a public service.
Using it without due cause is a criminal
offense. The following requirements must be fulfilled
for a
911emergency call:
R the mobile phone must be switched on.
R a network must be available.
R a valid and operational SIM card must be
inserted in the mobile phone.
R the mobile phone is connected to COMAND
via Bluetooth ®
.
If you cannot make an emergency call, you
must arrange rescue measures yourself.
X Enter the number on COMAND
(Y page 387).
X Press 0061.
The telephone makes the connection.
X Wait until the emergency call center
answers and describe the emergency sit-
uation. Telephony via the Bluetooth
®
inter-
face
Prerequisites For telephony via COMAND's Bluetooth
®
interface, a Bluetooth ®
-capable mobile
phone is required.
On COMAND
X Activate the Bluetooth ®
function in
COMAND (Y page 308).
On the mobile phone
X Switch on the mobile phone and enter the
PIN when prompted to do so (see the
mobile phone operating instructions).
X Activate Bluetooth ®
functions and, where
necessary, Bluetooth ®
visibility on the
mobile phone (see the mobile phone oper-
ating instructions).
The battery of the mobile phone should
always be kept sufficiently charged in order to
prevent malfunctions. 380
TelephoneCOMAND

Rear-compartment screens
0043
AUX jacks, detailed view in the "CD/DVD drive and AUX jacks" section (Y page 483).
0044 Display
Remote control Overview
0043
Switches the screen on/off
0044 Switches the button lighting on/off
0087 Selects the screen for the remote control
0085 Selects a menu or menu item
0083 Confirms a selection or setting
0084 Switches the sound on or off
006B Adjusts the volume
006C Skips to a track, fast-forward/fast-rewind
006D Selects a track; direct entry
006E Exits a menu (back) i
Two remote controls are supplied for the
US and Canadian markets.
Selecting the screen for the remote con-
trol
The remote control can be used to operate
one of the two rear-compartment screens or
SPLITVIEW for the front passenger. To do so, you must switch the remote control to the
desired screen (Y page 482).
X To select the left-hand screen: turn thumb-
wheel 0087until "L REAR" is highlighted in the
window.
X To select the right-hand screen: turn
thumbwheel 0087until "R REAR" is highligh-
ted in the window.
X To select SPLITVIEW: turn thumbwheel 0087
until "SPLITVIEW" is highlighted in the win-
dow.
Switching the screen on/off
If the SmartKey is in position 0or 1in the
ignition lock (see vehicle Operator's Manual),
or if it is not in the ignition lock, the rear-com- partment screens will switch off after
30 minutes. Before the screens switch off,
they show a message to this effect.
You can switch the screens back on. How-
ever, this will discharge the starter battery. 482
Rear Seat Entertainment SystemCOMAND

Cordless headphones
Overview
X
To adjust the headphones: open both sides of the headphones.
X Adjust the fit of the headphones by pulling the headphone band in the direction of the arrow.
X To switch the headphones on/off: press on/off switch0044.
X To adjust the volume: turn volume control0087until the desired volume is set. If you have
connected corded headphones to a rear-compartment screen, you can adjust the volume
using the remote control (Y page 482).
X To check the battery condition of charge: check the state of the batteries using indicator
lamp 0043.
i To preserve the batteries, the headphones automatically switch off if they have not
received an audio signal for approximately 3 minutes.
Indicator lamp on the cordless head-
phones
The color of the indicator lamp shows:
R whether the device is switched on or off
R the condition of the inserted batteries. LED dis-
play Status
Green The batteries are fine.
Red The batteries are almost dis-
charged. Lit continu-
ously The headphones are switched
on and connected to a screen. LED dis-
play Status
Flashing The headphones are search-
ing for the connection to a
screen.
No display
(dark) The headphones are switched
off or the batteries are dis-
charged. i
The function of the headphones may be
impaired by other radio-based electronic
devices such as mobile phones or laptops. 484
Rear Seat Entertainment SystemCOMAND