215 Controls in detail
Useful features
Upgrade Signals
The Tele Aid system processes calls using
the following priority:
Automatic emergency – First priority
Manual emergency – Second priority
Roadside Assistance – Third priority
Information – Fourth priority
Should a higher priority call be initiated
while you are connected, an upgrade (al-
ternating) tone will be heard, and the ap-
propriate indicator lamp will flash. If
certain information such as vehicle identi-
fication number or customer information is
not available, the operator may need to re-
transmit.
During this time you will hear a beep and
voice contact will be interrupted. Voice
contact will resume once the retransmis-
sion is completed. Once a call is conclud-
ed, a beep will be heard and the
appropriate indicator lamp will stop flash-
ing. The COMAND system operation will
resume. See System self-check (
page 210)
when the indicator lamp does not light
up in red or stays on longer than ap-
proximately 10 seconds.
If the indicator lamp in the Information
button
¡
is illuminated continuous-
ly and no voice connection to the Re-
sponse Center has been established,
then the Tele Aid system could not ini-
tiate an Information call (e.g. the rele-
vant cellular phone network is not
available). The message
INFO –
CALL FAILED
appears in the multifunc-
tion display.
Information calls can be terminated us-
ing the
ì
button on the multifunc-
tion steering wheel.
!If the indicator lamps do not start flash-
ing after pressing one of the buttons or
remain illuminated (in red) at any time,
the Tele Aid system has detected a
fault or the service is not currently ac-
tive, and may not initiate a call. Visit
your Mercedes-Benz Center and have
the system checked or contact the Re-
sponse Center at 1-800-756-9018 (in
the USA) or 1-888-923-8367 (in Cana-
da) as soon as possible.
220 Controls in detailUseful featuresCanadian programming
During programming, your hand-held
transmitter may automatically stop trans-
mitting.
Continue to press and hold the inte-
grated remote control transmitter but-
ton (refer to steps two through four in
the “Programming” portion) while you
repeatedly press (“cycle”) your
hand-held transmitter every two sec-
onds until the frequency signal has
been learned.
Upon successful training, the indicator
lamp will flash slowly and then rapidly
after several seconds.Operating the remote control
Turn key in starter switch to position1
or2.
Select and press the appropriate but-
ton to activate the remote controlled
device.
The integrated remote control trans-
mitter continues to send the signal as
long as the button is pressed – up to
20 seconds.Erasing the remote control memory
Turn key in ignition to position1 or2.
Simultaneously hold down the left and
right side buttons for approximately
20 seconds, or until the indicator lamp
blinks rapidly.
The codes of all three channels are
erased.iIf you sell your vehicle, erase the codes
of all three channels.
228OperationDriving instructions
Tires
Tread wear indicators (TWI) are required by
law. These indicators are located in six
places on the tread circumference and be-
come visible at a tread depth of approxi-
mately
1⁄16 in (1.5 mm), at which point the
tire is considered worn and should be re-
placed.The tread wear indicator appears as a solid
band across the tread.
Specified tire pressures must be main-
tained. This applies particularly if the tires
are subject to extreme operating condi-
tions (e.g. high speeds, heavy loads, high
ambient temperatures).
To reduce the risk of personal injury as a re-
sult of inadvertent vehicle movement, be-
fore turning off the engine and leaving the
vehicle always:
Keep right foot firmly on brake pedal.
Firmly depress parking brake pedal.
Move the selector lever to positionP.
Slowly release brake pedal.
When parked on an incline, turn front
wheel towards the road curb.
Turn the key to starter switch position0
and remove, or press KEYLESS-GO*
start/stop button (vehicles with
KEYLESS-GO*).
Take the key or the KEYLESS-GO
* card
with you and lock vehicle when leaving.
Warning!
G
If you feel a sudden significant vibration or
ride disturbance, or you suspect that possi-
ble damage to your vehicle has occurred,
you should turn on the hazard warning flash-
ers, carefully slow down, and drive with cau-
ti o n t o an a re a wh ic h i s a s a fe dis ta n c e f ro m
the road.
Inspect the tires and the vehicle underbody
for possible damage. If the vehicle or tires
appear unsafe, have it towed to the nearest
Mercedes-Benz Center or tire dealer for re-
pairs.
Warning!
G
Do not allow your tires to wear down too far.
As tread depth approaches
1⁄16 in (1.5 mm),
the adhesion properties on a wet road are
sharply reduced.
Depending upon the weather and/or road
surface (conditions), the tire traction varies
widely.
270 Practical hintsWhat to do if …?Messages in the display
The control system shows warning and
malfunction messages in the multifunction
display.
Certain warning and malfunction messag-
es are accompanied by an audible signal.
Address these messages accordingly and
follow the additional instructions given in
this Operator’s Manual.
Selecting the malfunction memory menu in
the control system (
page 130) displays
both cleared and uncleared messages.
High-priority messages appear in the mul-
tifunction display in red color.
Certain messages of high priority cannot
be cleared from the multifunction display
using the reset button J
.
Other messages of high priority or messag-
es of less immediate priority (regular dis-
play colors) can be cleared from the
multifunction display using the reset but-
ton
J
.These are then stored in the malfunction
message memory (
page 130).
On the pages that follow, you will find a
compilation of all the messages that may
appear in the display.
High priority messages appear on a red
background.
Warning!
G
All categories of messages contain impor-
tant information which should be taken note
of and, where a malfunction is indicated, ad-
dressed as soon as possible at an autho-
rized Mercedes-Benz Center.
Failure to repair condition noted may cause
damage not covered by the Mercedes-Benz
Limited Warranty, or result in property dam-
age or personal injury.Warning!
G
No messages will be displayed if either the
instrument cluster or the multifunction dis-
play is inoperative.
Contact your nearest authorized
Mercedes-Benz Center.
iTurning the key in the starter switch to
position2, or pressing the KEY-
LESS-GO* start/stop button twice to
position2 causes all lamps as well as
the multifunction display to come on.
Ensure that they are all in working or-
der before starting your journey.
280 Practical hintsWhat to do if …?Display
Possible cause
Possible solution
G
DISPLAY MALFUNCTION
VISIT WORKSHOP!
The instrument cluster display is malfunc-
tioning.
Continue driving with added caution.
Visit an authorized Mercedes-Benz
Center as soon as possible.
DISTRONIC
EXTERNAL INTERFERENCE
REACTIVATE!
Distronic* is switched off and is temporari-
ly unavailable.
Try activating Distronic* again later.
CLEAN SENSOR!
SEE OPERATOR'S MAN.
Distronic* is switched off because the Dis-
tronic* cover in the radiator grille is dirty.
Clean the Distronic* cover in the ra-
diator grille (
page 259).
Restart the vehicle.
VISIT WORKSHOP!
Distronic* is malfunctioning or the display
is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
J
DOOR OPEN!
You are attempting to drive with one or
more doors open.
Close the doors.
P
SHIFT
TO P
You have turned off the engine with the
KEYLESS-GO* start/stop button and
opened the driver’s door.
Place the selector lever in positionP.
?
VISIT WORKSHOP!
There may be a malfunction in the:
Fuel injection system
Ignition system
Exhaust system
Fuel system
Visit an authorized Mercedes-Benz
Center as soon as possible.
297 Practical hints
Unlocking/locking in an emergency
Unlocking/locking in an emergency
Unlocking the vehicle
Unlocking the driver’s door
If you are unable to unlock the driver’s
door using the SmartKey, open the door
using the mechanical key.
1Mechanical key locking tab
2Mechanical key
Move locking tab1 in direction of ar-
row and slide the mechanical key out of
the housing.
Unlock the door with the mechanical
key. To do so, push the mechanical key
in the lock until it stops and turn it to
the left (position1).
iUnlocking your vehicle with the me-
chanical key will trigger the anti-theft
alarm system. To cancel the alarm, do
one of the following:
Press button
Œ
or
‹
on the
SmartKey.
Insert the key in the starter switch.
If KEYLESS-GO* card present,
press the KEYLESS-GO* start/stop
button.
298 Practical hintsUnlocking/locking in an emergencyUnlocking the trunk
If you are unable to unlock the trunk with
the SmartKey, open the trunk with the me-
chanical key as follows:Trunk lock
Insert the mechanical key into the
trunk lid lock.
Turn the key counterclockwise to
position1.
Press trunk lid lock2.
The trunk lid swings open.
Locking the vehicle
If you are unable to lock the vehicle with
the SmartKey, lock it with the mechanical
key as follows:
Close the passenger door and the trunk
lid.
Press the central locking switch in the
center console (
page 95).
Check to see whether the locking knob
on the passenger door is still visible. If
necessary push it down manually.
Lock the driver’s door with the me-
chanical key.
Lock the trunk lid if necessary with the
mechanical key (
page 90).
!The trunk lid swings open automatical-
ly. Always make sure that there is suffi-
cient overhead clearance. A minimum
height clearance of 6.1 ft (1.90 m) is re-
quired to open the trunk lid. iUnlocking your vehicle with the me-
chanical key will trigger the anti-theft
alarm system. To cancel the alarm, do
one of the following:
Press button
Œ
or
‹
on the
SmartKey.
Insert the key in the starter switch.
If KEYLESS-GO* card present,
press the KEYLESS-GO* start/stop
button (
page 33).
313 Practical hints
Battery
Battery
Warning!
G
Failure to follow these instructions can re-
sult in severe injury or death.
Never lean over batteries while connecting,
you might get injured.
Battery fluid contains sulfuric acid. Do not
allow this fluid to come in contact with eyes,
skin or clothing. In case it does, immediately
flush affected area with water and seek
medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking etc.
!Never loosen or detach battery termi-
nal clamps while the engine is running
or the key is in the starter switch. Oth-
erwise the alternator and other elec-
tronic components could be severely
damaged.
Have the battery checked regularly by
an authorized Mercedes-Benz Center.
Refer to Service Booklet for mainte-
nance intervals or contact your autho-
rized Mercedes-Benz Center for further
information.Warning!
G
Do not place metal objects on the battery as
this could result in a short circuit.
Use leak-proof battery only to avoid the risk
of acid burns in the event of an accident.
Warning!
G
With a disconnected battery
y o u w i l l n o l o n g e r b e a b l e t o t u r n t h e k e y
in the starter switch and pressing the
KEYLESS-GO* start/stop button on the
selector lever will have no effect
the selector lever will remain locked in
positionP