warning light MERCEDES-BENZ S-Class 2008 W221 Comand Manual

386 Controls in detailSteering wheel
Make sure that

you can reach the steering wheel with
your arms slightly bent at the elbows


you can move your legs freely


all displays (including malfunction and
indicator lamps) on the instrument
cluster are clearly visible
Steering wheel adjustment
1Adjusting steering wheel, in or out
2Adjusting steering column, up or down
Adjusting steering wheel in or out:
Move stalk forward or back in the direc-
tion of arrow1 until a comfortable
steering wheel position is reached with
your arms slightly bent at the elbow.

Adjusting steering wheel up or
down: Move stalk up or down in the di-
rection of arrow2.
Warning!
G
Do not adjust the steering wheel while driv-
ing. Adjusting the steering wheel while driv-
ing could cause the driver to lose control of
the vehicle.
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle.
Even with the SmartKey or SmartKey with
KEYLESS-GO* removed from the starter
switch or the SmartKey with KEYLESS-GO*
removed from the vehicle, the steering
wheel adjustment feature can be operated.
Therefore, do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. A child’s unsupervised access to a
vehicle could result in an accident and/or
serious personal injury.
i
The memory function (
page 392) lets you
store settings for the steering wheel together
with the settings for the seat position and the ex-
terior rear view mirrors.

390 Controls in detailMirrorsAuto-dimming rear view mirrors
The reflection brightness of the exterior
rear view mirror on the driver’s side and
the interior rear view mirror will respond
automatically to glare when

the ignition is switched on
(page 370)
and


incoming light from headlamps falls on
the sensor in the interior rear view
mirror
The interior rear view mirror will not react if


reverse gearR is engaged


the interior lighting is turned on
Warning!
G
The auto-dimming function does not react if
incoming light is not aimed directly at the
sensors in the interior rear view mirror.
The interior rear view mirror and the exterior
rear view mirror on the driver’s side do not
react, for example, if the rear window sun-
shade is in raised position.
Light hitting the mirror(s) at certain angles
(incident light) could blind you. As a result,
you may not be able to observe traffic con-
ditions and could cause an accident.
Warning!
G
Exercise care when using the passen-
ger-side exterior rear view mirror. The mirror
surface is convex (outwardly curved surface
for a wider field of view). Objects in mirror
are closer than they appear. Check your in-
side rear view mirror or glance over your
shoulder before changing lanes.

399 Controls in detail
Lighting
Lighting
Exterior lamp switch
The exterior lamp switch is located on the
dashboard to the left of the steering wheel.
i
If you drive in countries where vehicles drive
on the other side of the road than the country in
which the vehicle is registered, you must have
the headlamps modified for symmetrical low
beams. Relevant information can be obtained at
any authorized Mercedes-Benz Center.
i
The active Bi-Xenon headlamps monitor
your steering angle and driving speed, then auto-
matically shift their beams to either side to bet-
ter follow the curvature of the road ahead,
increasing usable illumination over conventional
headlamps.
1‚
Standing lamps, left (turn left two
stops)
2ˆ
Standing lamps, right (turn left
one stop)
3M
Off
Daytime running lamp mode
(page 401)
4*
Automatic headlamp mode
Daytime running lamp mode
(page 401)
5C
Parking lamps (also tail lamps, li-
cense plate lamps, side marker
lamps, instrument panel lamps)
6B
Low beam headlamps or high
beam headlamps
7‡
Front fog lamps
8†
Rear fog lamp
i
If you hear a warning signal you have forgot-
ten to switch off the low beam headlamps or the
parking lamps before opening the driver’s door.
In addition the message “Please Switch Off
Lights” appears in the multifunction display.
Switch off the low beam headlamps or the park-
ing lamps.
If the message “Turn Lights Off or Remove Key”
appears in the multifunction display remove the
SmartKey from the starter switch or switch off
the automatic headlamp mode.
!
Failure to switch off the exterior lamps when
leaving the vehicle may result in a discharged
battery.

400 Controls in detailLightingLow beam headlamps
The low beam headlamps can be switched
on and off with the exterior lamp switch us-
ing the manual headlamp mode. 
Switching on: Turn the exterior lamp
switch to positionB.
The following lamps switch on:

Low beam headlamps


Tail and parking lamps


License plate lamps


Side marker lampsAutomatic headlamp mode
The following lamps switch on and off au-
tomatically depending on the brightness of
the ambient light:


Low beam headlamps


Tail and parking lamps


License plate lamps


Side marker lamps
Warning!
G
If the exterior lamp switch is set to*,
the headlamps will not be automatically
switched on under foggy conditions.
To minimize risk to you and to others, acti-
vate headlamps by turning exterior lamp
switch to B when driving or when traffic
and/or ambient lighting conditions require
you to do so.
In low ambient lighting conditions, only
switch from position * to B with the
vehicle at a standstill in a safe location.
Switching from * to B will briefly
switch off the headlamps. Doing so while
driving in low ambient lighting conditions
may result in an accident.

402 Controls in detailLighting
The corresponding exterior lamps
switch on (
page 399).
USA only
When the engine is running, and you turn
the exterior lamp switch to position C
orB, the manual headlamp mode has
priority over the daytime running lamp
mode.
The corresponding exterior lamps switch
on (
page 399).Locator lighting and night security illu-
mination
The locator lighting and night security illu-
mination are described in the COMAND ve-
hicle section under “Setting locator
lighting” (
page 265) and “Setting night
security illumination” (
page 264).
Fog lampsFront fog lamps

Turn the exterior lamp switch to
positionC orB (
page 399).

Pull out exterior lamp switch to first
stop.
The front fog lamps are switched on.
The green indicator lamp‡ in the
exterior lamp switch comes on
(page 399).

Push in the exterior lamp switch.
The front fog lamps are switched off.
The green indicator lamp‡ in the
exterior lamp switch goes out.
i
With the daytime running lamp mode
activated and the exterior lamp switch in
position M, you cannot switch on the high
beam headlamps.
The high beam flasher is available at all times.
For nighttime driving you should turn the exterior
lamp switch to positionB or * to permit
activation of the high beam headlamps.
Warning!
G
In low ambient lighting or foggy conditions,
only switch from position * to B with
the vehicle at a standstill in a safe location.
Switching from * to B will briefly
switch off the headlamps. Doing so while
driving in low ambient lighting conditions
may result in an accident.i
Fog lamps will operate with the parking
lamps and/or the low beam headlamps on. Fog
lamps should only be used in conjunction with
low beam headlamps. Consult your State or
Province Motor Vehicle Regulations regarding
permissible lamp operation.
i
Fog lamps cannot be switched on manually
with exterior lamp switch in position*. To
activate the fog lamps, turn exterior lamp switch
to positionB first.

405 Controls in detail
Lighting
Switching off the corner-illuminating
lamps
The combination switch for the turn signal
resets automatically after major steering
wheel movements. This will switch off the
corner-illuminating lamps if they were acti-
vated by switching on the left or right turn
signal.
If the turn signal should stay on after mak-
ing the turn, the turn signal and corner-illu-
minating lamp can be switched off by
returning the combination switch to its
original position.
Hazard warning flasher
The hazard warning flasher can be
switched on at all times, even with the
SmartKey removed from the starter switch
or with the SmartKey with KEYLESS-GO*
removed from the vehicle.
The hazard warning flasher is automatical-
ly switched on if

an air bag has been triggered


S 600 and S 65 AMG, USA only: you
brake the vehicle strongly at a speed of
more than 50 mph (70 km/h) and
bring it to a complete stop
1Hazard warning flasher switch

Switching on: Press hazard warning
flasher switch.
All turn signals will flash.

Switching off: Press hazard warning
flasher switch again.
i
If you are driving faster than 25 mph
(40 km/h) when activating the turn signal indica-
tor, the corner-illuminating lamp function is
switched off.
i
The corner-illuminating lamp may remain lit
for a short time. The corner-illuminating lamp
lights up for no more than 20 seconds with the
vehicle standing still. It is then switched off even
if the turn signal is still switched on or you have
turned the steering wheel to full lock.
i
With the hazard warning flasher activated
and the combination switch set for either left or
right turn, only the respective left or right turn
signals will operate when the SmartKey in the
starter switch is in position1 or2 or the
KEYLESS-GO* start/stop button (
page 372) is
pressed once or twice.
i
If the hazard warning flasher was activated
automatically, also press hazard warning flasher
switch 1 to switch off the hazard warning flash-
er.

410 Controls in detailPower windowsOpening and closing power windows
The door windows are opened and closed
electrically. The switches

for all door windows are on the driver’s
door


for the front passenger side window
are on the front passenger door


for each rear side window are on the
rear doors1Left front door window
2Right front door window
3Left rear door window
4Right rear door window
Warning!
G
Do not keep any part of your body up against
the side window pane when opening a win-
dow. The downward motion of the pane may
pull that part of your body down between
the window pane and the door frame and
trap it there. If there is a risk of entrapment,
release the switch and press it again to
close the window.
Warning!
G
When closing the windows, make sure that
there is no danger of anyone being harmed
by the closing procedure.
Activate the override switch (
page 64)
when children are riding in the back seats of
the vehicle. The children may otherwise in-
jure themselves, e.g. by becoming trapped
in the window opening.
The closing of the door windows can be im-
mediately halted by releasing the switch or,
if the switch was pressed past the resis-
tance point and released, by pressing the
lower part of the respective switch again.
The door windows are equipped with the ex-
press-close and automatic reversal func-
tion. If the window encounters an
obstruction that blocks its path in a circum-
stance where you pressed the switch past
the resistance point and released it to close
the window, the automatic reversal function
will stop the window and open it slightly.

412 Controls in detailPower windows
Express-opening: Press the lower part
of switch1 to4 (
page 410) past
the resistance point and release.
The corresponding window opens com-
pletely.

Express-closing: Press the upper part
of switch1 to4 (
page 410) past
the resistance point and release.
The corresponding window closes com-
pletely.

Stopping during Express-operation:
Briefly press the respective power win-
dow switch again.
Rear side window sunshades*
Closing: With the side window fully
closed, press the upper part of
switch3 or4 (
page 410).
The rear side window sunshade will be
fully closed.

Opening: Press the lower part of
switch3 or4 (
page 410).
The rear side window sunshade will be
fully opened.
Summer opening feature
If the weather is warm, you can ventilate
the vehicle before driving off by simulta-
neously:

opening the door windows and rear
side window sunshades*


opening the tilt/sliding sunroof or
tilt/sliding panel* and extending the
roller sunblinds*


turning on the seat ventilation* for the
driver’s seat
Warning!
G
Driver’s door only:
If within 5 seconds you again press the
switch past the resistance point and re-
lease, the automatic reversal will not oper-
ate.
!
If the upward movement of the window is
blocked during the closing procedure, the win-
dow will stop and open slightly. Remove the ob-
struction, press the respective power window
switch at the upper part again past the resis-
tance point and release. If the window still does
not close when there is no obstruction, press
and hold the respective power window switch at
the upper part. The side window will then close
without the obstruction sensor function.
i
The rear side window sunshade cannot be
partially closed.
i
The switches on the rear doors can also be
used to close the rear side window sunshades on
the other side of the vehicle.
i
The switches on the driver’s door take pre-
cedence over the rocker switches on the other
doors.


434 Controls in detailAutomatic transmissionStopping
When you stop briefly, e.g. at traffic lights:
Leave the transmission in gear.

Hold the vehicle with the brake.
When you stop for a longer period of time
with the engine idling and/or on a hill:

Engage the electronic parking brake.

Shift into park positionP.
Maneuvering
When you maneuver in tight areas,
e.g. when pulling into a parking space:

Control the vehicle speed by gradually
releasing the brakes.

Accelerate gently.

Never abruptly step on the accelerator.Rocking the vehicle
Rocking the vehicle by shifting between
drive positionD and reverse gearR can
help free a vehicle stuck in mud or snow.
The engine control system of this vehicle
electronically limits shifting between drive
positionD and reverse gearR to very low
speeds, i.e. approximately 5 mph
(9 km/h). To shift between drive
positionD and reverse gearR, move the
gear selector lever past the resistance
point up or down.
Working on the vehicleHill start assist system
On uphill grades with a gradient angle of
more than 5°, the hill start assist system
maintains the pressure in the brake sys-
tem for approximately 1 second after you
have released the brake pedal. Therefore,
you can start off smoothly without the
vehicle moving immediately after releasing
the brake pedal.
Warning!
G
When working on the vehicle, engage the
electronic parking brake and shift to park
positionP. Otherwise the vehicle could roll
away.
Warning!
G
The hill start assist system is not designed
to function as an electronic parking brake
and does not prevent the vehicle from mov-
ing when parked on an incline.
Always engage the electronic parking brake
in addition to shifting to park positionP.

444 Controls in detailInstrument clusterA full view illustration of the instrument
cluster can be found in the “At a glance”
section of this manual (
page 28).
The instrument cluster is activated when
you:


open a door


switch on the ignition (
page 370)


switch on the exterior lamps
The language setting for the multifunction
display can be changed via COMAND
(
page 262).Adjusting instrument cluster display
illumination
1Knob

Brightening illumination: Turn
knob1 clockwise.

Dimming illumination: Turn knob1
counterclockwise.
Coolant temperature gauge
The coolant temperature gauge is on the
left side in the instrument cluster
(page 28).
Warning!
G
No messages will be displayed if either the
instrument cluster or the multifunction dis-
play is inoperative.
As a result, you will not be able to see infor-
mation about your driving conditions, such
as speed or outside temperature, warning/
indicator lamps, malfunction/warning mes-
sages or the failure of any systems. Driving
characteristics may be impaired.
If you must continue to drive, please do so
with added caution. Contact an authorized
Mercedes-Benz Center as soon as possible.i
The instrument cluster illumination is
dimmed or brightened automatically to suit am-
bient light conditions.
The instrument cluster illumination will also be
adjusted automatically when you switch on the
vehicle’s exterior lamps.
Warning!
G


Driving when your engine is overheated
can cause some fluids which may have
leaked into the engine compartment to
catch fire. You could be seriously
burned.


Steam from an overheated engine can
cause serious burns and can occur just
by opening the hood. Stay away from
the engine if you see or hear steam com-
ing from it.
Stop the vehicle in a safe location away from
other traffic. Turn off the engine, get out