Page 369 of 474
368 Practical hintsWhat to do if …Display symbol
Display message
Possible cause
Possible solution
.
Low beam left
The left low beam lamp is malfunctioning.
Halogen headlamp:
Replace the bulb as soon as possible.
Bi-Xenon* headlamp:
Visit an authorized Mercedes-Benz
Center as soon as possible.
Low beam right
The right low beam lamp is
malfunctioning.
Halogen headlamp:
Replace the bulb as soon as possible.
Bi-Xenon* headlamp:
Visit an authorized Mercedes-Benz
Center as soon as possible.
Parking lamp
left front
The left parking lamps are
malfunctioning. A substitute bulb is being
used.
Replace the bulb as soon as possible.
Parking lamp
right front
The right parking lamps are
malfunctioning. A substitute bulb is being
used.
Replace the bulb as soon as possible.
Rear fog lamp
Substitute bulb on
The rear fog lamp is malfunctioning.
Replace the bulb as soon as possible.
Page 370 of 474
369
Practical hints
What to do if …
Display symbol
Display message
Possible cause
Possible solution
.
Switch off lights.
This display appears if the driver’s door is
opened and no SmartKey is in the starter
switch.
Switch off the headlamps.
Taillamp left
Substitute bulb on
The left tail lamp is malfunctioning.
A substitute bulb is being used.
Replace the bulb as soon as possible.
Taillamp right
Substitute bulb on
The right tail lamp is malfunctioning.
A substitute bulb is being used.
Replace the bulb as soon as possible.
Turn signal
left front
The left front turn signal lamp is
malfunctioning.
Replace the bulb as soon as possible.
Turn signal
right front
The right front turn signal lamp is
malfunctioning.
Replace the bulb as soon as possible.
Page 371 of 474
370 Practical hintsWhat to do if …Display symbol
Display message
Possible cause
Possible solution
.
Turn signal
left mirror
The left turn signal in the side mirror is
malfunctioning. This message will only
appear if all light emitting diodes have
stopped working.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Turn signal
right mirror
The right turn signal in the side mirror is
malfunctioning. This message will only
appear if all light emitting diodes have
stopped working.
Visit an authorized Mercedes-Benz
Center as soon as possible.
Turn signal
left rear
Substitute bulb on
The left rear turn signal lamp is
malfunctioning. A substitute bulb is being
used.
Replace the bulb as soon as possible.
Turn signal
right rear
Substitute bulb on
The right rear turn signal lamp is
malfunctioning. A substitute bulb is being
used.
Replace the bulb as soon as possible.
Page 372 of 474
371
Practical hints
What to do if …
Display symbol
Display message
Possible cause
Possible solution
<
Belt system
Drive to workshop
The seat belt system is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
_
Steering oil
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.
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 an authorized Mercedes-Benz
Center as soon as possible.
Page 373 of 474

372 Practical hintsWhat to do if …Display symbol
Display message
Possible cause
Possible solution
K
Close slid./pop-up
sunroof
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the panorama roof with power
tilt/sliding panel open.
Close the panorama roof with power
tilt/sliding panel (
page 242).
J
Close slid./pop-up
sunroof
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the panorama roof with power
tilt/sliding panel open.
Close the panorama roof with power
tilt/sliding panel (
page 242).
L
Tele Aid malfunction.
Drive to 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.
t
Function unavailable.
This display appears if buttont
or s on the multifunction steering
wheel is pressed and the vehicle is not
equipped with a telephone*.
Ê
Trunk open
This message will appear whenever the
trunk lid is open.
Close the trunk lid.
W
Washer fluid
please refill
The fluid level has dropped to
about
1/3of total reservoir capacity.
Add washer fluid (
page 299).
Page 439 of 474

438 Technical termsControl systemThe 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.
Curb weight (
page 323)
DOT (Department o
f Transportation)
(
page 323)
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.
->SRS FSS (Canada vehicles)
(F
lexible S
ervice S
ystem)
Maintenance service indicator in the
multifunction display that informs the
driver when the next vehicle mainte-
nance service is due. FSS evaluates
engine temperature, oil level, vehicle
speed, engine speed, distance driven
and the time elapsed since your last
maintenance service, and calls for the
next maintenance service accordingly.
GAWR (G
ross A
xle W
eight R
ating)
(
page 323)
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 gear selector le-
ver.
Page 440 of 474

439
Technical terms
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.
GVW (G
ross V
ehicle W
eight)
(
page 324)
GVWR (Gross V
ehicle W
eight R
ating)
(
page 324)
Instrument cluster The displays and indicator/warning
lamps in the driver’s field of vision, in-
cluding the tachometer, speedometer
and fuel gauge. Kickdown
Depressing the accelerator past the
point of resistance shifts the transmis-
sion down to the lowest possible gear.
This very quickly accelerates the vehi-
cle and should not be used for normal
acceleration needs.
Kilopascal (kPa) (
page 324)
Lock button Button on the door which indicates
whether the door is locked or un-
locked. Pushing the lock button down
on an individual door from inside will
lock that door.
Maintenance System (U.S. vehicles) Maintenance service indicator in the
multifunction display that informs the
driver when the next vehicle mainte-
nance service is due. The Maintenance
System in your vehicle tracks distance
driven and the time elapsed since your
last maintenance service, and calls for
the next maintenance service accord-
ingly. Maximum load rating
(
page 324)
Maximum loaded vehicle weight (page 324)
Maximum tire inflation pressure (page 324)
Memory function* Used to store three individual seat,
steering wheel and mirror positions for
each SmartKey.
MON (Motor O
ctane N
umber)
The Motor Octane Number for gasoline
as determined by a standardized meth-
od. It is an indication of a gasoline's
ability to resist undesired detonation
(knocking). The average of both the
MON (Motor Octane Number) and
->RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.
Page 441 of 474

440 Technical termsMultifunction displayDisplay field in the instrument cluster
used to present information provided
by the control system.
Multifunction steering wheel Steering wheel with buttons for operat-
ing the control system.
Normal occupant weight (
page 324)
OCS (Occupant C
lassification S
ystem)
The system automatically turns the
front passenger front air bag on or off
based on the classified occupant size
category determined by weight sensor
readings from the seat.
Overspeed range Engine speeds within the red marking
of the tachometer dial. Avoid this en-
gine speed range, as it may result in se-
rious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty. Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.
Power train Collective term designating all compo-
nents used to generate and transmit
motive power to the drive axles, includ-
ing
engine
clutch/torque converter
transmission
transfer case
drive shaft
differential
axle shafts/axles
Production options weight (
page 324)
Program mode selector switch Used to switch the automatic transmis-
sion between standard operation S and
winter operation C. PSI
(P
ounds per s
quare i
nch)
(
page 325)
Recommended tire inflation pressure (page 325)
Restraint systems Seat belts, child restraints, lower an-
chors and tethers for children (LATCH).
As independent systems, their protec-
tive functions complement one
another.
Rim (page 325)
RON (Research O
ctane N
umber)
The Research Octane Number for gaso-
line as determined by a standardized
method. It is an indication of a gaso-
line's ability to resist undesired detona-
tion (knocking). The average of both
the ->MON (Motor Octane Number)
and RON (Research Octane Number) is
posted at the pump, also known as AN-
TI-KNOCK INDEX.