2008 MERCEDES-BENZ S-Class climate control

parking sensors winter tires transmission fluid warning lights service indicator oil change

Page 545 of 801

MERCEDES-BENZ S-Class 2008 W221 Comand Manual 544 Controls in detailUseful featuresEmergency calls
An emergency call is initiated
automatically following an accident in
which the emergency tensioning devices
(ETDs) or air bags deploy.
An emerg

544 Controls in detailUseful featuresEmergency calls
An emergency call is initiated
automatically following an accident in
which the emergency tensioning devices
(ETDs) or air bags deploy.
An emergency call can also be initiated
manually by opening the cover next to the
interior rear view mirror labeled SOS, then
briefly pressing the button located under
the cover. For instructions on initiating an
emergency call manually (
page 545).
Once the emergency call is in progress, the
indicator lamp in the SOS button will begin
to flash. The message:

“Connecting Call” appears in the multi-
function display

“Emergency Call Activated” appears in
the COMAND display
and the audio system is muted. When the
connection is established, the message:

“Call Connected” appears in the multi-
function display

“Emergency Call Activated” appears in
the COMAND display
All information relevant to the emergency,
such as the location of the vehicle (deter-
mined by the GPS satellite location sys-
tem), vehicle model, identification number
and color are generated.
A voice connection between the Response
Center and the occupants of the vehicle
will be established automatically soon af-
ter the emergency call has been initiated.
The Response Center will attempt to deter-
mine more precisely the nature of the acci-
dent provided they can speak to an
occupant of the vehicle.The Tele Aid system is available if

it has been activated and is operation-
al. Activation requires a subscription
for monitoring services, connection,
and cellular air time

the relevant monitoring service and
GPS coverage are available and pass
the information on to the Response
Center

there is sufficient voltage in the vehicle
batteries
i
During the emergency call message “Emer-
gency Call Activated” is displayed, operation
from COMAND is not possible. The automatic cli-
mate control can be still adjusted using the
switches on the climate control panel.
i
If no vehicle occupant responds, an ambu-
lance will be sent to the vehicle immediately.
i
Location of the vehicle on a map is only pos-
sible if the vehicle is able to receive signals from
the GPS satellite network and pass the informa-
tion on to the Response Center.Warning!
G
If the indicator lamp in the SOS button is
flashing continuously and there was no
voice connection to the Response Center
established, then the Tele Aid system could
not initiate an emergency call (e.g. the rele-
vant mobile phone network is not available).

Page 606 of 801

MERCEDES-BENZ S-Class 2008 W221 Comand Manual 605 Operation
Tires and wheels
from the norm due to variations in driving
habits, service practices and differences in
road characteristics and climate.
Traction
The traction grades, from highest to

Page 618 of 801

MERCEDES-BENZ S-Class 2008 W221 Comand Manual 617 Operation
Vehicle care
Engine cleaning
Prior to cleaning the engine compartment,
make sure to protect electrical compo-
nents and connectors from contact with
water and cleaning agents.
Corrosio

617 Operation
Vehicle care
Engine cleaning
Prior to cleaning the engine compartment,
make sure to protect electrical compo-
nents and connectors from contact with
water and cleaning agents.
Corrosion protection, such as
MB Anticorrosion Wax, should be applied
to the engine compartment after every
engine cleaning. Before applying, all
control linkage bushings and joints should
be lubricated. The poly-V-belt and all pul-
leys should be protected from any wax.
Vehicle washing
In the winter, thoroughly remove all traces
of road salt as soon as possible.
When washing the vehicle underbody, do
not forget to clean the inner sides of the
wheels.Hand-wash
Do not use hot water or wash your vehicle
in direct sunlight.

Only use a mild car wash detergent,
such as Mercedes-Benz approved Car
Shampoo.

Thoroughly spray the vehicle with a dif-
fused jet of water.
Direct only a very weak spray towards
the ventilation intake.

Use plenty of water and rinse the
sponge and chamois frequently.

Rinse with clean water and thoroughly
dry with a chamois.
Do not allow cleaning agents to dry on
the finish.Automatic car wash
You can have your car washed in an auto-
matic car wash from the start. Automatic
car washes without brushes are prefera-
ble.

To protect the filter system, switch the
automatic climate control to air recir-
culation mode (
page 506).
If the vehicle is very dirty, prewash it be-
fore running it through the automatic car
wash.
i
Vehicles with KEYLESS-GO*:
If a door handle is hit by a strong jet of water, and
a SmartKey with KEYLESS-GO* is in close prox-
imity, i.e. within approximately 3 ft (approxi-
mately 1 m), the vehicle could be inadvertently
locked or unlocked.
!
Do not use scouring agents on these parts.
Never apply strong force and only use a soft,
non-scratching cloth when cleaning the vehicle.
Do not attempt to wipe the surface with a dry
cloth or sponge.
Otherwise you may scratch or damage the paint.
!
Do not clean your vehicle in an automatic
touchless car wash which uses caustic spray.
Otherwise the caustic spray will damage the
paint or ornamental moldings.
!
Make sure that the windshield wiper switch
is set to0 (
page 408). Otherwise, e.g. the rain
sensor could activate and cause the wipers to
move unintentionally. This may lead to vehicle
damage.
Due to the width of the vehicle, fold in exterior
rear view mirrors prior to running the vehicle
through an automatic car wash to prevent dam-
age to the mirrors.

Page 694 of 801

MERCEDES-BENZ S-Class 2008 W221 Comand Manual 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 C

Page 768 of 801

MERCEDES-BENZ S-Class 2008 W221 Comand Manual 767 Technical data
Fuels, coolants, lubricants, etc.
Model
Capacity
Fuels, coolants, lubricants, etc.
Cooling
system
Vehicles without rear passen-
ger compartment climate
control*
S 450 4MATIC
1
S 5

Page 774 of 801

MERCEDES-BENZ S-Class 2008 W221 Comand Manual 773 Technical data
Fuels, coolants, lubricants, etc.
Anticorrosion/antifreeze quantityModel
Approximate freeze protection
– 35°F (– 37°C)
– 49°F (– 45°C)
S 450 4MATIC
1
S 550
S 550 4MATIC

Page 777 of 801

MERCEDES-BENZ S-Class 2008 W221 Comand Manual 776 IndexAspect ratio 606
Audio (COMAND) 116
CD mode 124
DVD mode 124
MP3 mode 124
Audio (Control system
instrument cluster) 294
CD changer 295
CD/DVD changer 295
DVD changer 295
Audio AUX (COMAND) 1

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