Page 369 of 474

367 Practical hints
What to do if …?
Display
Possible cause
Possible solution
.
LOW BEAM, LEFT
CHECK LIGHT
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
CHECK LIGHT
The right low beam lamp is malfunction-
ing.
Halogen headlamp:
Replace the bulb as soon as possible.
Bi-Xenon* headlamp:
Visit an authorized Mercedes-Benz
Center as soon as possible.
MARKER LIGHT, FL
CHECK LIGHT
The front left side marker lamp is mal-
functioning.
Replace the bulb as soon as possible.
MARKER LIGHT, FR
CHECK LIGHT
The front right side marker lamp is mal-
functioning.
Replace the bulb as soon as possible.
REAR FOGLIGHT
CHECK LIGHT
The rear fog lamp is malfunctioning.
Replace the bulb as soon as possible.
REVERSE LIGHT, LEFT
CHECK LIGHT
The left reverse lamp is malfunctioning.
Replace the bulb as soon as possible.
REVERSE LIGHT, RIGHT
CHECK LIGHT
The right reverse lamp is malfunctioning.
Replace the bulb as soon as possible.
Page 370 of 474

368 Practical hintsWhat to do if …?Display
Possible cause
Possible solution
.
STANDING LIGHT, L
CHECK LIGHT
The left front parking lamp is malfunction-
ing.
Replace the bulb as soon as possible.
STANDING LIGHT, R
CHECK LIGHT
The right front parking signal lamp is mal-
functioning.
Replace the bulb as soon as possible.
STANDING LIGHT, L
CHECK LIGHT
SUBSTITUTE LAMP ON!
The left rear parking signal lamp is mal-
functioning. A substitute bulb is being
used.
Replace the bulb as soon as possible.
STANDING LIGHT, R
CHECK LIGHT
SUBSTITUTE LAMP ON!
The right rear parking signal lamp is mal-
functioning. A substitute bulb is being
used.
Replace the bulb as soon as possible.
TAIL LIGHT, LEFT
CHECK LIGHT
SUBSTITUTE LAMP ON!
The left tail lamp is malfunctioning. A sub-
stitute bulb is being used.
Replace the bulb as soon as possible.
TAIL LIGHT, RIGHT
CHECK LIGHT
SUBSTITUTE LAMP ON!
The right tail lamp is malfunctioning. A
substitute bulb is being used.
Replace the bulb as soon as possible.
TURN OFF LIGHTS
Lamps have been turned on although the
SmartKey in the ignition is in position 0.
Turn the exterior lamp switch to M
(page 50).
Page 371 of 474

369 Practical hints
What to do if …?
Display
Possible cause
Possible solution
.
FRONT TURN SIGNAL, L
CHECK LIGHT
The left front turn signal lamp is malfunc-
tioning.
Replace the bulb as soon as possible.
FRONT TURN SIGNAL, R
CHECK LIGHT
The right front turn signal lamp is malfunc-
tioning.
Replace the bulb as soon as possible.
REAR TURN SIGNAL, L
CHECK LIGHT
SUBSTITUTE LAMP ON!
The left rear turn signal lamp is malfunc-
tioning. A substitute bulb is being used.
Replace the bulb as soon as possible.
REAR TURN SIGNAL, R
CHECK LIGHT
SUBSTITUTE LAMP ON!
The right rear turn signal lamp is malfunc-
tioning. A substitute bulb is being used.
Replace the bulb as soon as possible.
MIRROR TURN SIG., L
CHECK LIGHT
The left turn signal in the side mirror is
malfunctioning. This message will only ap-
pear if all light emitting diodes have
stopped working.
Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
MIRROR TURN SIG., R
CHECK LIGHT
The right turn signal in the side mirror is
malfunctioning. This message will only ap-
pear if all light emitting diodes have
stopped working.
Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
Page 372 of 474

370 Practical hintsWhat to do if …?Display
Possible cause
Possible solution
<
SEAT BELT SYSTEM
DRIVE TO WORKSHOP
The seat belt system is malfunctioning.
Visit an authorized Mercedes-Benz
Center as soon as possible.
K
CLOSE
SUNROOF!
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the tilt/sliding sunroof open.
Close the tilt/sliding sunroof
(page 211).
J
CLOSE
SUNROOF!
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the tilt/sliding sunroof open.
Close the tilt/sliding sunroof
(page 211).
L
TELE AID
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.
TELE AID BATTERY
DRIVE TO WORKSHOP
The emergency power battery for the Tele
Aid system is malfunctioning. If the vehi-
cle battery is also discharged, Tele Aid
will not be operational.
Have the Tele Aid system checked by an
authorized Mercedes-Benz Center.
t
FUNCTION
UNAVAILABLE
This display appears if button t or
s on the multifunction steering wheel
is pressed and the vehicle is not equipped
with a telephone.
Page 373 of 474
371 Practical hints
What to do if …?
Display
Possible cause
Possible solution
A
TANK OPEN!
CHECK FILLER CAP!
A loss of pressure has been detected in
the fuel system. The fuel cap may not be
closed properly or the fuel system may be
leaky.
Check the fuel cap (
page 283).
If it is not closed properly:
Close the fuel cap.
If it is closed properly:
Have the fuel system checked by an au-
thorized Mercedes-Benz Center.
Ê
TRUNK OPEN
This message will appear whenever the
trunk lid is open.
Close the trunk lid.
W
WASHER FLUID
CHECK LEVEL!
The fluid level has dropped to about
1/3
of total reservoir capacity.
Add washer fluid (
page 295).
Page 374 of 474
372 Practical hintsWhat to do if …?Tire inflation pressure monitor
messagesDisplay
Possible cause
Possible solution
H
TIRE PRES.
CAUTION, TIRE PRES.
One or more tires are deflating.
Carefully bring the vehicle to a halt, avoid-
ing abrupt steering and braking maneu-
vers. Observe the traffic situation around
you.
Change the damaged wheel
(page 398).
Have the damaged wheel repaired or re-
placed at an authorized Mercedes-Benz
Center.
TIRE PRES.
CHECK TIRES!
The pressure has fallen significantly in
one or more tires.
TIRE PRESSURE
PLEASE CORRECT
The pressure is too low in one or more
tires.
Check and correct tire inflation pressure
as required (
page 307).
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle.
You may lose control of the vehicle. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.
Page 375 of 474
373 Practical hints
What to do if …?
Display
Possible cause
Possible solution
H
TIRE PRES., LF
CAUTION, TIRE PRES.
The left front tire is deflating.
Bring the vehicle to a halt, avoiding
abrupt braking maneuvers. Observe the
traffic situation around you.
Change the wheel (
page 398).
Have the damaged wheel repaired or re-
placed at an authorized Mercedes-Benz
Center.
TIRE PRES., LF
CHECK TIRES!
The left front tire inflation pressure is low.
Carefully bring the vehicle to a halt.
Check and correct the tire inflation pres-
sure (
page 307).
If necessary, change the wheel
(page 398).
Have the damaged wheel repaired or re-
placed at an authorized Mercedes-Benz
Center.
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle.
You may lose control of the vehicle. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.
Page 376 of 474
374 Practical hintsWhat to do if …?Display
Possible cause
Possible solution
H
TIRE PRES., RF
CAUTION, TIRE PRES.
The right front tire is deflating.
Bring the vehicle to a halt, avoiding
abrupt braking maneuvers. Observe the
traffic situation around you.
Change the wheel (
page 398).
Have the damaged wheel repaired or re-
placed at an authorized Mercedes-Benz
Center.
TIRE PRES., RF
CHECK TIRES!
The right front tire inflation pressure is
low.
Carefully bring the vehicle to a halt.
Check and correct the tire inflation pres-
sure (
page 307).
If necessary, change the wheel
(page 398).
Have the damaged wheel repaired or re-
placed at an authorized Mercedes-Benz
Center.
Warning!
G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle.
You may lose control of the vehicle. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.