MERCEDES-BENZ S350 2006 W221 Owner's Manual

370 Practical hintsWhat to do if …?Display
Possible cause
Possible solution
.
FRONT FOGLAMP, LEFT
CHECK LIGHT
The left front fog lamp is malfunctioning.

Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
FRONT FOGLAMP, RIGHT
CHECK LIGHT
The right front fog lamp is malfunctioning.

Visit an authorized Mercedes-Benz Cen-
ter as soon as possible.
HIGH BEAM, LEFT
CHECK LIGHT
The left high beam lamp is malfunction-
ing.

Replace the bulb as soon as possible.
HIGH BEAM, RIGHT
CHECK LIGHT
The right high beam lamp is malfunction-
ing.

Replace the bulb as soon as possible.
LICENSE PLATE L, L
CHECK LIGHT
The left license plate lamp is malfunction-
ing.

Replace the bulb as soon as possible.
LICENSE PLATE L, R
CHECK LIGHT
The right license plate lamp is malfunc-
tioning.

Replace the bulb as soon as possible.
LIGHT SENSOR
DRIVE TO WORKSHOP
The lamp sensor is malfunctioning. The
headlamps switch on automatically.

In the control system, set lamp operation
to manual (
page 165).

Switch on headlamps using the exterior
lamp switch.

Visit an authorized Mercedes-Benz
Center as soon as possible.

371 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.

372 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).

373 Practical hints
What to do if …?
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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.

374 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 sliding portion of the
tilt/sliding sunroof open.

Close the tilt/sliding sunroof
(page 212).
J
CLOSE
SUNROOF
You have opened the driver’s door with
the SmartKey removed from the starter
switch and the tilting portion of the
tilt/sliding sunroof open.

Close the tilt/sliding sunroof
(page 212).
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.

375 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 284).
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 296).

376 Practical hintsWhat to do if …?Tire inflation pressure monitor
messagesDisplay
Possible cause
Possible solution
TIRE PRES. MONITOR
REACTIVE AFTER
CORRECTING PRESSURE
There was a tire inflation pressure warning
message.
The yellow warning lamp for the tire infla-
tion pressure monitor comes on and you
have not reactivated the system since the
last tire inflation pressure check.

Activate the tire inflation pressure monitor
after correcting the tire inflation pressure val-
ues (
page 308).
TIRE PRESSURE
DISPLAY ONLY
AVAILABLE WHEN
IGNITION IS ON

Switch on the ignition (
page 34).
TIRE PRES. MONITOR
REACTIVATED
The tire inflation pressure monitor is using
the current pressure values as the basis for
monitoring.
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.

377 Practical hints
What to do if …?
Display
Possible cause
Possible solution
TIRE PRES. MONITOR
CURRENTLY
UNAVAILABLE
The tire inflation pressure monitor* is un-
able to monitor the tire inflation pressure
due to:

the presence of several wheel sensors
in the vehicle


excessive wheel sensor temperatures


a nearby radio interference source


unrecognized wheel sensors installed

Remove any extra wheel sensors from the ve-
hicle.
As soon as the causes of the malfunction have
been removed, the tire inflation pressure moni-
tor automatically becomes active again.
TIRE PRES. MONITOR
NOT OPERATIONAL
DRIVE TO WORKSHOP
The tire inflation pressure monitor or a
wheel sensor is malfunctioning.

Have the tire inflation pressure monitor
checked by an authorized Mercedes-Benz
Center.
A wheel without proper sensor was in-
stalled.

Have the wheels checked.
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.

378 Practical hintsWhat to do if …?Display
Possible cause
Possible solution
H
TIRE PRESSURE
PLEASE CORRECT
The pressure is too low in one or more
tires.

Check and correct tire inflation pressure
as required (
page 308).
TIRE PRESSURE
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 403).

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.

379 Practical hints
What to do if …?
Display
Possible cause
Possible solution
H
TIRE PRESSURE
CHECK TIRES
The pressure has fallen significantly in
one or more tires.

Carefully bring the vehicle to a halt, avoid-
ing abrupt steering and braking maneu-
vers. Observe the traffic situation around
you.

Check the tires. If no damage visible,
check and correct tire inflation pressure
as required.

Change the damaged wheel
(page 403).

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.