2002 MERCEDES-BENZ S430 service

224 Tele Aid
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Notes:
The indicator lamp in the Information button¡
remains illuminated in red for approx. 10 seconds
during the system self-check after turning electronic
key in starter switch to position 2 (together with the
“SOS” button and the Roadside Assistance button•).
See system self-check on page 218 when the indicator
lamp does not light up in red or stays on longer than
approximately 10 seconds.
If the indicator lamp in the Information button¡ is
illuminated continuously and there was no voice
connection to the Response Center established, then the
Tele Aid system could not initiate an Information call
(e.g. the relevant cellular phone network is not
available). The message “INFO – CALL FAILED” appears
in the multifunction display.
Information calls can be terminated using the
ìbutton on the multifunction steering wheel.Important!
If the indicator lamps do not start flashing after
pressing one of the buttons or remain illuminated (in
red) at any time, the Tele Aid system has detected a fault
or the service is not currently active, and may not
initiate a call. Visit your Mercedes-Benz Center and
have the system checked or contact the Response Center
at 1-800-756-9018 (in the USA) or 1-888-923-8367 (in
Canada) as soon as possible.
Upgrade Signals
Tele Aid system processes calls using the following
priority.
•Automatic emergency – First priority
•Manual emergency – Second priority
•Roadside assistance – Third priority
•Information – Fourth priority
Should a higher priority call be initiated while you are
connected, an upgrade (alternating) tone will be heard,
and the appropriate indicator lamp will flash. If certain
information such as vehicle identification number or
customer information is not available, the operator may
need to retransmit.

225 Tele Aid
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index During this time you will hear a chirp and voice contact
will be interrupted. Voice contact will resume once the
retransmission is completed. Once a call is concluded, a
chirp will be heard and the appropriate indicator lamp
will stop flashing. The COMAND system operation will
resume.
Important!
If the indicator lamp continues to flash or the system
does not reset, contact the Response Center at
1-800-756-9018 (in the USA) or 1-888-923-8367 (in
Canada), or Mercedes-Benz Customer Assistance at
1-800-FOR-MERCedes (1-800-367-6372) in the USA or
Customer Service at 1-800-387-0100 in Canada.Notes:
The indicator lamp in the respective button flashes until
the call is concluded. Calls can only be terminated by a
Response Center or Customer Assistance Center
representative except Roadside Assistance and
Information calls, which can also be terminated by
pressing ìbutton on the multifunction steering
wheel.
When a Tele Aid call has been initiated, the COMAND
system audio is muted and the selected mode (radio,
tape or CD) pauses. The optional cellular phone (if
installed) switches off. If you must use this phone, the
vehicle must be parked. Disconnect the coiled cord and
place the call. The navigation system (if engaged) will
continue to run. The display in the instrument cluster is
available for use and spoken commands are only
available by pressing the RPT button on the COMAND
unit. A pop-up window will appear in the COMAND
display to indicate that a Tele Aid call is in progress.

227 Tele Aid
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Stolen vehicle tracking services
In the event your vehicle was stolen, report the incident
to the police who will issue a numbered incident report.
Pass this number on to the Mercedes-Benz Response
Center.
The Response Center will then attempt to covertly
contact the vehicle’s Tele Aid system. Once the vehicle
is located, the Response Center will contact the local
Law Enforcement and you. The vehicle’s location will
only be provided to Law Enforcement.
Info Services (optional, except Canada)
Info Services categories include news, sports, stocks,
weather and calendar reminders. Choices can be
selected via www.mbusa.com or by calling 1-800-FOR-
MERcedes.
To request Info Services, press the SVC button on the
COMAND system, then select “SEND NEW REQUEST
FOR INFO SERVICE”. “NEW INFO SERVICE REQUEST
TRANSMITTED” will appear in the COMAND display
and call status messages will appear in the
multifunction display.Once information is available, the message “NEW INFO
RECEIVED - READ LATER WHEN STOPPED?”will
appear. Select “Yes”. With the vehicle stopped in a safe
location press SVC, then select “View Info Service of
mm.dd.yyyy hh.mm”. Messages will be retained for
30 minutes once the ignition is switched off.
Important!
Tele Aid utilizes the cellular network for
communication and the GPS (Global Positioning
System) satellites for vehicle location. If either of these
signals are unavailable, the Tele Aid system may not
function and if this occurs, assistance must be
summoned by other means.
Wa r n i n g !
If the indicator lamp in the “SOS” button does not
illuminate during or remains illuminated after the
system self-check or if the message “TELE AID –
VISIT WORKSHOP” appears in the multifunction
display, have the system checked at the nearest
Mercedes-Benz Center as soon as possible.

228 Catalytic converter
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Catalytic converter
Your Mercedes-Benz is equipped with monolithic type
catalytic converters, an important element in
conjunction with the oxygen sensors to achieve
substantial control of the pollutants in the exhaust
emissions. Keep your vehicle in proper operating
condition by following our recommended maintenance
instructions as outlined in your Service Booklet.
Caution!
To prevent damage to the catalytic converters, use only
premium unleaded gasoline in this vehicle.
Any noticeable irregularities in engine operation should
be repaired promptly. Otherwise, excessive unburned
fuel may reach the catalytic converter causing it to
overheat, which could start a fire.
Wa r n i n g !
As with any vehicle, do not idle, park or operate
this vehicle in areas where combustible materials
such as grass, hay or leaves can come into contact
with the hot exhaust system, as these materials
could be ignited and cause a vehicle fire.

229 Emission control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Emission control
Certain systems of the engine serve to keep the toxic
components of the exhaust gases within permissible
limits required by law.
These systems, of course, will function properly only
when maintained strictly according to factory
specifications. Any adjustments on the engine should,
therefore, be carried out only by qualified
Mercedes-Benz Center authorized technicians. Engine
adjustments should not be altered in any way. Moreover,
the specified service jobs must be carried out regularly
according to Mercedes-Benz servicing requirements.
For details refer to the Service Booklet.
Wa r n i n g !
Inhalation of exhaust gas is hazardous to your
health. All exhaust gas contains carbon monoxide,
and inhaling it can cause unconsciousness and
lead to death.Do not run the engine in confined areas (such as a
garage) which are not properly ventilated. If you
think that exhaust gas fumes are entering the
vehicle while driving, have the cause determined
and corrected immediately. If you must drive under
these conditions, drive only with at least one
window fully open.

230 Starter switch
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Starter switch
0The electronic key can be withdrawn in this position
only. The electronic key can only be removed with
the selector lever in position “P”. After removing the
electronic key or with the electronic key in starter
switch position 0 or 1, the selector lever is locked in
position “P”.1Most electrical consumers can be operated. For
detailed information see respective subjects.
2Driving position.
Gear selector lever is unlocked.
To move the selector lever out of position “P”, firmly
depress the service brake pedal.
3Starting position.
See page 235 for instructions on starting and stopping
the engine.
See page 42 for instructions on the simultaneous use of
the electronic key and the KEYLESS-GO-function.
P54.25-2427-26
Wa r n i n g !
When leaving the vehicle always remove the
electronic key from the starter switch, take the
KEYLESS-GO-card (if so equipped) with you and
lock the vehicle. Do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. Unsupervised use of vehicle equipment
may cause serious personal injury.

238 Automatic transmission
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Driving
The selector lever is automatically locked while in
position “P”. To move the selector lever out of
position “P”, the service brake pedal must be firmly
depressed before the shift lock will release.
Shift selector lever to the desired position only when the
engine is idling normally and the service brake is
applied. Do not release the brake until ready to drive.
The vehicle may otherwise start creeping when the
selector lever is in drive or reverse position.Important!
After selecting any driving position from “N” or “P”,
wait a moment to allow the gear to fully engage before
accelerating, especially when the engine is cold.
Accelerator position
Partial throttle = early upshifting = normal acceleration
Full throttle = later upshifting = rapid acceleration
Kickdown (depressing the accelerator beyond full
throttle) = downshifting to a lower gear = maximum
acceleration. Once the desired speed is attained, ease up
on the accelerator — the transmission shifts up again.
Wa r n i n g !
It is dangerous to shift the selector lever out of “P”
or “N” if the engine speed is higher than idle speed.
If your foot is not firmly on the brake pedal, the
vehicle could accelerate quickly forward or in
reverse. You could lose control of the vehicle and
hit someone or something. Only shift into gear
when the engine is idling normally and when your
right foot is firmly on the brake pedal.

239 Automatic transmission
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Stopping
For brief stops, e.g. at traffic lights, leave the
transmission in gear and hold vehicle with the service
brake.
For longer stops with the engine idling, shift into “N”
or “P” and hold the vehicle with the service brake.
When stopping the vehicle on an uphill gradient, do not
hold it with the accelerator, use the brake. This avoids
unnecessary transmission heat build up.
Maneuvering
To maneuver in tight areas, e.g. when pulling into a
parking space, control the vehicle speed by gradually
releasing the brakes. Accelerate gently and never
abruptly step on the accelerator.
To rock a vehicle out of soft ground (mud or snow),
alternately shift from forward to reverse, while applying
slight partial throttle.Rocking a vehicle free in this manner may cause the
ABS or traction system malfunction indicator lamp to
come on. Turn off and restart the engine to clear the
malfunction indication.
Wa r n i n g !
Getting out of your vehicle with the selector lever
not fully engaged in position “P” is dangerous.
Also, when parked on an incline, position “P” alone
may not prevent your vehicle from moving,
possibly hitting people or objects.Always set the parking brake in addition to shifting
to position “P”, see page 246 for parking brake. When parked on an incline, also turn front wheel
against curb.Wa r n i n g !
When leaving the vehicle always remove the
electronic key from the starter switch, take the
KEYLESS-GO-card (if so equipped) with you and
lock the vehicle. Do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. Children could move the gear selector lever
from position “P”, which could result in an
accident or serious injury.