MERCEDES-BENZ S-Class 2008 W221 Comand Manual

690 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Turn Lights Off
or
Remove Key
The exterior lamp switch is set to * and
you have forgotten to take out the
SmartKey. The parking lamps remain
switched on.

Switch off the headlamps (
page 399).
or

Remove the SmartKey from the starter
switch.
Check
Left Fog Lamp
The left front fog lamp is malfunctioning.

Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Right Fog Lamp
The right front fog lamp is malfunctioning.

Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Rear Left
Fog Lamp
The left rear fog lamp is malfunctioning.
A substitute bulb is being used.

Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Front Left
Parking Lamp
The left front parking lamp is malfunction-
ing. A substitute bulb is being used.

Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Front Right
Parking Lamp
The right front parking lamp is malfunction-
ing. A substitute bulb is being used.

Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Left Reverse Lamp
The left backup lamp is malfunctioning.

Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Right Reverse Lamp
The right backup lamp is malfunctioning.

Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.

691 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Check
Front Left
Sidemarker Lamp
The front left side marker lamp is malfunc-
tioning.

Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Front Right
Sidemarker Lamp
The front right side marker lamp is malfunc-
tioning.

Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Rear Left
Sidemarker Lamp
The rear left side marker lamp is malfunc-
tioning.

Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check
Rear Right
Sidemarker Lamp
The rear right side marker lamp is malfunc-
tioning.

Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.

692 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Check Left
Tail and Brake Lamp
The left tail lamp/brake lamp is malfunc-
tioning.
This message will only appear if a critical
number of light emitting diodes have
stopped working. A substitute bulb is being
used.

Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Check Right
Tail and Brake Lamp
The right tail lamp/brake lamp is malfunc-
tioning.
This message will only appear if a critical
number of light emitting diodes have
stopped working. A substitute bulb is being
used.

Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.

693 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Night View Assist
Inoperative
Night View Assist* is malfunctioning.

Contact an authorized Mercedes-Benz Cen-
ter as soon as possible.
Night View Assist
Currently Unavailable
The temperature of the camera* is too high
(page 491).

Wait until the message “Night View Assist
Available Again” appears.
In addition you can:

Swing the camera* cover down
(page 621).

Adjust the air distribution of the automatic
climate control so that air flows upward
(page 275).
Night View Assist
Lights Must Be Set
to AUTO or ON
You have tried to switch on Night View As-
sist*, but the light switch is not set to *
or B.

Turn the exterior lamp switch to * or
B (
page 399).
Night View Assist
Not in Reverse Gear
You have tried to switch on Night View As-
sist* while the automatic transmission was
in reverse gearR.

Shift the automatic transmission to park
positionP, neutral positionN or drive
positionD (
page 426).

694 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Night View Assist
Lights ON or AUTO,
Not in R Gear
You have tried to switch on Night View As-
sist* but the light switch is not set to *
or B.
In addition, the automatic transmission is in
reverse gearR.

Turn the exterior lamp switch to * or
B (
page 399).

Shift the automatic transmission to park
positionP, neutral positionN or drive
positionD (
page 426).
Night View Assist
Only When
It Is Dark
You have tried to switch on Night View As-
sist* by daylight.
You can only switch on Night View Assist* when
it is dark.
Engine Oil Level Low
Stop Vehicle
Turn Engine Off
S 600 and S 65 AMG only:
There is no oil in the engine. There is a dan-
ger of engine damage.

Carefully bring the vehicle to a halt as soon
as it is safe to do so in a safe location.

Engage the electronic parking brake
(page 422).

Turn off the engine.

Add engine oil (
page 578) and check the
engine oil level (page 575).

695 Practical hints
What to do if …?
When the message “Check Engine Oil Level
at Next Refueling” (all models except S 600
and S 65 AMG) or “Check Engine Oil Level
(Add 1 quart). (Canada:1Liter)” (S 600
and S 65 AMG) appears while the engine is
running and at operating temperature, the
engine oil level has dropped to approxi-
mately the minimum level.When this occurs, the warning is at first in-
termittent and then remains on if the oil
level drops further.
Visually check for oil leaks. If there are no
obvious oil leaks, drive to the nearest ser-
vice station to refill engine oil to the re-
quired level with an approved oil.For information on approved engine oils,
refer to the Factory Approved Service
Products pamphlet (USA only) or contact
an authorized Mercedes-Benz Center.Display
Possible cause/consequence
Possible solution
Check
Engine Oil Level
(Add 1 quart)
(USA only)
Check
Engine Oil Level
(Add 1 Liter)
(Canada only)
S 600 and S 65 AMG only:
The engine oil level is too low.

Check the engine oil level (
page 575) and
add engine oil as required (page 578).

If you must add engine oil frequently, have
the engine checked for possible leaks.
Check
Engine Oil Level
at Next Refueling
All models except S 600 and S 65 AMG:
The engine oil level has dropped to approx-
imately the minimum level.

Check the engine oil level (
page 575) and
add engine oil as required (page 578).

If you must add engine oil frequently, have
the engine checked for possible leaks.
!
Engine oil level warnings should not be ig-
nored. Extended driving with the symbol dis-
played could result in serious engine damage
that is not covered by the Mercedes-Benz Limit-
ed Warranty.

696 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Engine Oil Level
Cannot Be
Measured
S600 and S65AMG only:
The measuring system is malfunctioning.

Have the measuring system checked by an
authorized Mercedes-Benz Center.
Engine Oil
Level Too High
S600 and S65AMG only:
You have added too much engine oil.
There is a risk of damaging:

the engine


the catalytic converter

Have excess oil siphoned or drained off. Con-
tact an authorized Mercedes-Benz Center.

697 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
SRS Malfunction
Service Required
There is a malfunction in the supplemental
restraint systems. The air bags or emergen-
cy tensioning devices (ETDs) could deploy
unexpectedly or fail to activate in an acci-
dent.

Drive with added caution to the nearest au-
thorized Mercedes-Benz Center.
Front Left SRS
Malfunction
Service Required
Components of the driver’s supplemental
restraint system may not work properly.

Drive with added caution to the nearest au-
thorized Mercedes-Benz Center.
Front Right SRS
Malfunction
Service Required
Components of the front passenger’s sup-
plemental restraint system may not work
properly.

Drive with added caution to the nearest au-
thorized Mercedes-Benz Center.
Rear Left SRS
Malfunction
Service Required
Components of the left rear passenger’s
supplemental restraint system may not
work properly.

Drive with added caution to the nearest au-
thorized Mercedes-Benz Center.
Warning!
G
In the event that a malfunction of the SRS is
indicated as outlined above, the SRS may
not be operational. For your safety, we
strongly recommend that you contact an
authorized Mercedes-Benz Center
immediately to have the system checked;
otherwise the SRS may not be deployed
when needed in an accident, which could re-
sult in serious or fatal injury, or it might de-
ploy unexpectedly and unnecessarily which
could result in an accident and/or injury to
you or to others.

698 Practical hintsWhat to do if …?Display
Possible cause/consequence
Possible solution
Rear Center SRS
Malfunction
Service Required
Components of the center rear passenger’s
supplemental restraint system may not
work properly.

Drive with added caution to the nearest au-
thorized Mercedes-Benz Center.
Rear Right SRS
Malfunction
Service Required
Components of the right rear passenger’s
supplemental restraint system may not
work properly.

Drive with added caution to the nearest au-
thorized Mercedes-Benz Center.
Left Side Curtain
Airbag Malfunction
Service Required
The left side window curtain air bag may not
work properly.

Drive with added caution to the nearest au-
thorized Mercedes-Benz Center.
Right Side Curtain
Airbag Malfunction
Service Required
The right side window curtain air bag may
not work properly.

Drive with added caution to the nearest au-
thorized Mercedes-Benz Center.
Warning!
G
In the event that a malfunction of the SRS is
indicated as outlined above, the SRS may
not be operational. For your safety, we
strongly recommend that you contact an
authorized Mercedes-Benz Center
immediately to have the system checked;
otherwise the SRS may not be deployed
when needed in an accident, which could re-
sult in serious or fatal injury, or it might de-
ploy unexpectedly and unnecessarily which
could result in an accident and/or injury to
you or to others.

699 Practical hints
What to do if …?
Display
Possible cause/consequence
Possible solution
Tele Aid
Inoperative
One or more main functions of the Tele Aid
system are malfunctioning.

Have the Tele Aid system checked by an au-
thorized Mercedes-Benz Center.
Check
Tire Pressure
The pressure is too low in one or more tires.

Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.

Engage the electronic parking brake
(page 422).

Check and adjust tire inflation pressure as
required (
page 593).

If necessary, change the wheel (
page 723).
Tire Press. Warning
Caution
Tire Malfunction
One or more tires are deflating.

Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.

Engage the electronic parking brake
(page 422).

If necessary, change the wheel (
page 723).