Page 272 of 376

272 Practical hintsWhat to do if …Display
Possible cause
Suggested solution
A
RESERVE FUEL
VISIT FILLING STATION!
The fuel level has dropped below the
reserve mark.
Refuel at the next gas station
(page 233).
J
DOOR OPEN!
You are attempting to drive with one or
more doors open.
Close the doors.
Y
HOOD OPEN!
You are driving with the hood open.
Close the hood (
page 235).
Ê
TRUNK OPEN!
This message will appear whenever the
trunk lid is open.
Close the trunk lid.
I
REPLACE KEY
VISIT WORKSHOP!
No additional code available for
SmartKey.
Visit an authorized Mercedes-Benz
Center as soon as possible.
AUTOM. LIGHT ON
REMOVE KEY!
You have forgotten to remove the key.
Remove the key from the starter
switch.
.
LAMP SENSOR
VISIT WORKSHOP!
The lamp sensor is malfunctioning. The
headlamps switch on automatically.
In the control system, set lamp
operation to manual (
page 119).
Switch on headlamps using the
exterior lamp switch.
LOW BEAM, L
CHECK LAMPS!
The left low beam lamp is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
LOW BEAM, R
CHECK LAMPS!
The right low beam lamp is
malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
DISPLAY DEFECTIVE
VISIT WORKSHOP!
The display for the lamps or the system is
malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
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273 Practical hints
What to do if …
.
TURN SIGNAL, LR
CHECK LAMPS!
The left rear turn signal lamp is
malfunctioning.
Replace the bulb as soon as possible.
TURN SIGNAL, RR
CHECK LAMPS!
The right rear turn signal lamp is
malfunctioning.
Replace the bulb as soon as possible.
TURN SIG. IN MIRROR L
CHECK LAMPS!
The left turn signal in the side mirror is
malfunctioning. This message will only
appear if all light emitting diodes have
stopped working.
Have the LEDs replaced as soon as
possible.
TURN SIG. IN MIRROR R
CHECK LAMPS!
The right turn signal in the side mirror is
malfunctioning. This message will only
appear if all light emitting diodes have
stopped working.
Have the LEDs replaced as soon as
possible.
TURN SIGNAL, LF
CHECK LAMPS!
The left front turn signal lamp is
malfunctioning.
Replace the bulb as soon as possible.
TURN SIGNAL, RF
CHECK LAMPS!
The right front turn signal lamp is
malfunctioning.
Replace the bulb as soon as possible.
BRAKE LAMP
VISIT WORKSHOP!
Brake lamp illumination is delayed or
lamp is permanently on.
Visit an authorized Mercedes-Benz
Center as soon as possible.
BRAKE LAMP, L
CHECK LAMPS!
The left brake lamp is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
BRAKE LAMP, R
CHECK LAMPS!
The right brake lamp is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
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Possible cause
Suggested solution
Page 274 of 376

274 Practical hintsWhat to do if ….
3RD BRAKE LAMP
CHECK LAMPS!
The high mounted brake lamp is
malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
HIGH BEAM, L
CHECK LAMPS!
The left high beam lamp is
malfunctioning.
Replace the bulb as soon as possible.
HIGH BEAM, R
CHECK LAMPS!
The right high beam lamp is
malfunctioning.
Replace the bulb as soon as possible.
LICENSE PLATE LAMP, L
CHECK LAMPS!
The left license plate lamp is
malfunctioning.
Replace the bulb as soon as possible.
LICENSE PLATE LAMP, R
CHECK LAMPS!
The right license plate lamp is
malfunctioning.
Replace the bulb as soon as possible.
FRONT FOGLAMP, L
CHECK LAMPS!
The left front fog lamp is malfunctioning.
Replace the bulb as soon as possible.
FRONT FOGLAMP, R
CHECK LAMPS!
The right front fog lamp is malfunctioning.
Replace the bulb as soon as possible.
REAR FOGLAMP
CHECK LAMPS!
The rear fog lamp is malfunctioning.
Replace the bulb as soon as possible.
REVERSE LAMP, L
CHECK LAMPS!
The left backup lamp is malfunctioning.
Replace the bulb as soon as possible.
REVERSE LAMP, R
CHECK LAMPS!
The right backup lamp is malfunctioning.
Replace the bulb as soon as possible.
Display
Possible cause
Suggested solution
Page 275 of 376

275 Practical hints
What to do if …
.
TAIL LAMP, L
CHECK LAMPS!
SUBSTITUTE LAMP ON!
The left tail lamp is malfunctioning.
A backup bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
TAIL LAMP, R
CHECK LAMPS!
SUBSTITUTE LAMP ON!
The right tail lamp is malfunctioning.
A backup bulb is being used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
SIDE MARKER LAMP, LF
CHECK LAMPS!
SUBSTITUTE LAMP ON!
The left parking lamps are
malfunctioning. A backup bulb is being
used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
SIDE MARKER LAMP, RF
CHECK LAMPS!
SUBSTITUTE LAMP ON!
The right parking lamps are
malfunctioning. A backup bulb is being
used.
Visit an authorized Mercedes-Benz
Center as soon as possible.
AUTOM. LIGHT ON
REMOVE KEY!
Key in the starter switch position1 or2.
Remove key from the starter switch.
LIGHTS
TURN OFF LAMPS!
This display appears if the driver’s door is
opened with the engine shut off and no
key in the starter switch.
Insert key in the starter switch.
Switch off lights.
<
SEAT BELT SYSTEM
VISIT WORKSHOP!
The seat belt system is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
DRIVER’S SEAT BELT
FASTEN SEAT BELT!
The display reminds you and your
passengers to fasten seat belts.
Fasten the seat belts.
Display
Possible cause
Suggested solution
Page 276 of 376
276 Practical hintsWhat to do if …<
PASSENGER SEAT BELT
FASTEN SEAT BELT!
The display reminds you and your
passengers to fasten seat belts.
Fasten the seat belts.
_
STEERING WHEEL ADJUST
LOCK!
The steering column is not properly
locked .
Lock steering column (
page 37).
POWER STEERING FLUID
VISIT WORKSHOP!
The steering gear oil level is too low.
There is a danger of steering gear
damage.
Have the system checked by an
authorized Mercedes-Benz Center.
Display
Possible cause
Suggested solution
Warning!
G
If the level of steering gear oil in reservoir is
too low, the steering power assistance could
fail. Much greater effort will then be needed
to turn the steering wheel.
Do not add steering oil without checking the
steering system.
Do not drive the vehicle. Have the system
checked at your authorized Mercedes-Benz
Center as soon as possible.
Page 277 of 376

277 Practical hints
What to do if …
Display
Possible cause
Suggested solution
L
TELE AID
VISIT WORKSHOP!
One or more main functions of the Tele
Aid system* are malfunctioning.
Have the Tele Aid system* checked by
an authorized Mercedes-Benz Center.
ì
FUNCTION
NOT AVAILABLE!
This display appears if button
ì
or
í
on the multifunction steering
wheel is pressed and the vehicle is not
equipped with a telephone*.
1
RESTRAINT SYSTEM
VISIT WORKSHOP!
The system is malfunctioning.
Drive with added caution to the
nearest authorized Mercedes-Benz
Center.
Warning!
G
In the event a malfunction of the SRS is indi-
cated as outlined above, the SRS may not be
operational. For your safety, we strongly
recommend that you visit an authorized
Mercedes-Benz Center immediately to have
the system checked; otherwise the SRS may
not be activated when needed in an
accident, which could result in serious or
fatal injury, or it might deploy unexpectedly
and unnecessarily which could also result in
injury.
Page 278 of 376
278 Practical hintsWhat to do if …Display
Possible cause
Suggested solution
#
UNDERVOLTAGE
ENGINE ON!
The battery has insufficient voltage and
can no longer supply the convenience
functions such as seat heater*.
Start the engine (
page 44).
UNDERVOLTAGE
SWITCH CONSUMERS OFF!
The battery is malfunctioning.
Have the battery checked at a service
station.
G
VISIT WORKSHOP!
DISPLAY DEFECTIVE
The instrument cluster display is
malfunctioning.
Continue driving with added caution.
Visit an authorized Mercedes-Benz
Center as soon as possible.
±
VISIT WORKSHOP!
DISPLAY DEFECTIVE
Certain electronic systems are unable to
relay information to the control system.
The following systems may have failed:
Coolant temperature display
Tachometer
Cruise control display
Have the electronic systems checked
by an authorized Mercedes-Benz
Center (
page 259).
W
WASHER FLUID
CHECK LEVEL!
The fluid level has dropped to about
1/3
of total reservoir capacity.
Add washer fluid (
page 241).
Page 342 of 376

342 Technical termsCOMAND*
(C
ockpit M
anagement and D
ata
System)
Information and operating center for
vehicle sound and communications
systems, including the radio and navi-
gation system, as well as for other
optional equipment (CD changer,
telephone, etc.).
Control system
The control system is used to call up
vehicle information and to change
component settings. Information and
messages appear in the multifunction
display. The driver uses the buttons on
the multifunction steering wheel to
navigate through the system and to ad-
just settings.
Cruise control
Driving convenience system for auto-
matically maintaining the vehicle speed
set by the driver.Engine number
The number set by the manufacturer
and placed on the cylinder block to
uniquely identify each engine pro-
duced.
Engine oil viscosity
Measurement for the inner friction (vis-
cosity) of the oil at different tempera-
tures. The higher the temperature an
oil can tolerate without becoming thin,
or the lower the temperature it can tol-
erate without becoming viscous, the
better the viscosity.
ESP
(E
lectronic S
tability Pr
ogram)
Improves vehicle handling and direc-
tional stability.
ETD
(E
mergency T
ensioning D
evice)
Device which deploys in certain frontal
and rear collisions exceeding the sys-
tem's threshold to tighten the seat
belts.
->SRSFSS
(F
lexible S
ervice S
ystem)
Service indicator in the multifunction
display that informs the driver when
the next vehicle maintenance service is
due.
Gear range
Number of gears which are available to
the automatic transmission for shifting.
The automatic gear shifting process
can be adapted to specific operating
conditions using the selector lever.
GPS
(G
lobal P
ositioning S
ystem)
Satellite-based system for relaying
geographic location information to and
from vehicles equipped with special re-
ceivers. Employs CD digital maps for
navigation.
Instrument cluster
The displays and indicator/warning
lamps in the driver’s field of vision, in-
cluding the tachometer, speedometer
and fuel gauge.