ECU MERCEDES-BENZ S430 2004 W220 Owner's Manual

ContentsSafety and Security........................... 57
Occupant safety................................... 58
Airbags ........................................... 59
Seat belts ....................................... 64
Preventive occupant safety
(PRE-SAFE) ..................................... 68
Children in the vehicle.................... 69
Override switch for rear passenger
compartment.................................. 74
Panic alarm .......................................... 76
Activating ....................................... 76
Deactivating ................................... 76
Driving safety systems ......................... 77
ABS ................................................ 77
BAS ................................................ 78
ESP................................................. 79
Four wheel electronic traction
system (4MATIC) with the ESP ....... 82
Anti-theft systems................................ 83
Immobilizer..................................... 83
Anti-theft alarm system .................. 83
Tow-away alarm ............................. 85
Controls in detail............................... 87
Locking and unlocking ......................... 88
SmartKey ....................................... 88
SmartKey with KEYLESS-GO* ........ 91
Opening the doors from the inside . 96
Opening the trunk lid from the
outside ........................................... 97
Opening the trunk lid from the
inside ............................................. 97
Closing the trunk lid ....................... 98
Trunk lid opening/closing system* 99
Trunk lid emergency release ........ 104
Separately locking the trunk lid ... 105
Separately unlocking the trunk lid 105
Power closing assist for doors and
trunk lid........................................ 106
Automatic central locking ............ 106
Locking and unlocking from the
inside ........................................... 107
Seats ................................................. 108
Easy-entry/exit feature ................ 108
Removing and installing front seat
head restraints ............................. 109Rear seat head restraints ............. 110
Lumbar support ........................... 112
Multicontour backrest*................ 112
Drive-dynamic seat* .................... 113
Seat heating*............................... 114
Seat ventilation* .......................... 117
Rear seats .................................... 118
Memory function ............................... 121
Storing positions into memory ..... 122
Recalling positions from memory. 122
Storing exterior rear view mirror
parking position ........................... 122
Lighting ............................................. 124
Exterior lamp switch .................... 124
Combination switch ..................... 128
Hazard warning flasher ................ 128
Interior lighting ............................ 129
Courtesy lighting .......................... 130
Instrument cluster ............................. 131
Instrument cluster illumination .... 131
Coolant temperature gauge ......... 132
Trip odometer .............................. 132
Tachometer.................................. 133
Outside temperature indicator ..... 133

14 IntroductionWhere to find it
Where to find itThis Operator’s Manual is designed to pro-
vide comprehensive support information
for you, the vehicle operator. For you to
find information quickly each section has
its own reference color:At a glance
Here you will find an overview of all the
controls that can be operated from the
driver’s seat.Getting started
Here you will find all the information you
need for your first drive. You should read
this section first if this is your first
Mercedes-Benz vehicle or if you are rent-
ing or borrowing this vehicle.Safety and Security
Here you will find descriptions of the safety
features of your vehicle.
Controls in detail
Here you will find detailed information
about the equipment installed in your vehi-
cle. This section expands on the “Getting
started” section and also describes techni-
cal innovations. If you are already familiar
with the basic functions of your vehicle,
this section will be of particular interest to
you.Operation
Here you will find all the information you
need for the proper operation of your vehi-
cle.Practical hints
This section provides fast assistance for
dealing with problems you may encounter.
Technical data
All important technical data for your vehi-
cle can be found in this section.Indexes
The glossary provides explanations of the
most important technical terms.
The table of contents and the index are de-
signed to help you find information quickly
and easily.
The following publications are part of your
vehicle documentation:

this Operator’s Manual


the Service Booklet
Separate operating instructions will be
provided as required depending on the
equipment options installed in your vehi-
cle.

34 Getting startedAdjusting
AdjustingSeatsWarning!
G
All seat, head restraint, steering wheel, and
rear view mirror adjustments, as well as fas-
tening of seat belts, must be done before
the vehicle is put into motion.Warning!
G
Do not adjust the driver’s seat while driving.
Adjusting the seat while driving could cause
the driver to lose control of the vehicle.
Never ride in a moving vehicle with the seat
back in an excessively reclined position as
this can be dangerous. You could slide un-
der the seat belt in a collision. If you slide
under it, the belt would apply force at the ab-
domen or neck. That could cause serious or
fatal injuries. The seat backrest and seat
belts provide the best restraint when the
wearer is in a nearly upright position and
belts are properly positioned on the body.
Your seat must be adjusted so that you can
correctly fasten your seat belt (
page 40).
Never place hands under the seat or near
any moving parts while a seat is being ad-
justed.
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take the
SmartKey with KEYLESS-GO* with you, and
lock your vehicle.
Even with the SmartKey removed from the
starter switch or the SmartKey with
KEYLESS-GO* removed from the vehicle,
the power seats can be operated when the
respective door is open. Therefore, do not
leave children unattended in the vehicle, or
with access to an unlocked vehicle. Unsu-
pervised use of vehicle equipment may
cause an accident and/or serious personal
injury.
Warning!
G
Children 12 years old and under must never
ride in the front seat, except in a
Mercedes-Benz authorized BabySmart
TM
compatible child seat, which operates with
the BabySmart
TM system installed in the ve-
hicle to deactivate the passenger front air-
bag when it is properly installed. Otherwise
they will be struck by the airbag when it in-
flates in a crash. If this happens, serious or
fatal injury will result.
According to accident statistics, children
are safer when properly restrained in the
rear seating positions than in the front seat-
ing positions. Infants and small children
must ride in back seats and be seated in an
appropriate infant or child restraint system,
which is properly secured with the vehicle's
seat belt and top tether strap, or secured via
lower anchors and top tether strap, fully in
accordance with the child seat manufactur-
er’s instructions.

35 Getting started
Adjusting
Seat adjustment
The seat adjustment switches are located
on the front doors.
1Head restraint height
2Seat height
3Seat cushion tilt
4Seat cushion depth
5Seat fore and aft adjustment
6Seat backrest tilt

Switch on ignition.
or

Open the respective door.
Seat fore and aft adjustment

Press the switch forward or backward
in the direction of arrow5.
Adjust seat to a comfortable seating
position that still allows you to reach
the accelerator / brake pedal safely.
The position should be as far to the rear
as possible, consistent with ability to
properly operate controls.Seat cushion tilt

Press the switch up or down in the di-
rection of arrow3until your upper
legs are lightly supported.
Seat cushion depth

Press the switch forward or backward
in the direction of arrow4 until your
legs are supported comfortably.
Seat backrest tilt

Press the switch forward or backward
in the direction of arrow6 until your
arms are slightly angled when holding
the steering wheel.
Seat height

Press the switch up or down in the di-
rection of arrow2.
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and
the child is not properly secured in the child
restraint.
iWhen moving the seat, make sure
there are no items in the footwell or be-
hind the seats. Otherwise you could
damage the seats.
The memory function (
page 121) lets
you store the setting for the seat posi-
tion together with the settings for the
steering wheel and the exterior rear
view mirrors.

41 Getting started
Driving
1 Release button
2Buckle
3 Latch plate
Pull the seat belt smoothly from the
seat belt outlet.
According to accident statistics, children
are safer when properly restrained in the
rear seating positions than in the front seat-
ing positions. Infants and small children
must ride in back seats and be seated in an
appropriate infant or child restraint system,
which is properly secured with the vehicle's
seat belt and top tether strap, or secured via
lower anchors and top tether strap, fully in
accordance with the child seat manufactur-
er’s instructions.
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and
the child is not properly secured in the child
restraint.
Warning!
G
Never let more people ride in the vehicle
than there are seat belts available. Be sure
everyone riding in the vehicle is correctly re-
strained with a separate seat belt. Never use
a seat belt for more than one person at a
time.Warning!
G
Never ride in a moving vehicle with the seat
backrest in an excessively reclined position
as this can be dangerous. You could slide
under the seat belt in a collision. If you slide
under it, the belt would apply force at the ab-
domen or neck. That could cause serious or
even fatal injuries. The seat backrest and
seat belt provide the best restraint when the
wearer is in a nearly upright position and the
belt is properly positioned on the body.
Warning!
G
Read and observe the additional warning no-
tices printed in the “Safety and Security”
section (
page 62).


57 Safety and Security
Occupant safety
Panic alarm
Driving safety systems
Anti-theft systems

58 Safety and SecurityOccupant safety
Occupant safetyIn this section you will learn the most im-
portant facts about the restraint systems
of the vehicle.
The restraint systems are:

Seat belts


Emergency tensioning device


Airbags


Child seats


Child seat recognition


Lower anchors and tethers for children
(LATCH)
As independent systems, their protective
effects work in conjunction with each oth-
er.The 1 indicator lamp in the instrument
cluster comes on


for about four seconds when you turn
the SmartKey in the starter switch to
position1 or press the KEYLESS-GO*
start/stop button once. It then goes
out briefly, comes on again and re-
mains lit until you start the engine.


for about four seconds when you start
the engine by turning the SmartKey or
pressing the KEYLESS-GO* start/stop
button.The restraint systems are fully operational
if the 1 indicator lamp is not lit when
the engine is running.
A malfunction in the system has been de-
tected if the1 indicator lamp:


fails to extinguish after approximately
four seconds.


does not come on at all.


comes on after the engine was started
or while driving.
For safety reasons, we strongly recom-
mend that you visit an authorized
Mercedes-Benz Center immediately to
have the system checked.
For more information, see “Practical hints”
(
page 303).
iFor information on infants and children
traveling with you in the vehicle and re-
straint systems for infants and chil-
dren, see “Children in the vehicle”
(page 69).
iThe 1 indicator lamp remains lit if
the SmartKey is turned to position 2
and left there or the KEYLESS-GO*
start/stop button is pressed twice. The
indicator lamp will go out when you
start the engine.

59 Safety and Security
Occupant safety
Airbags
Warning!
G
In the event that the 1 indicator lamp
comes on during driving or does not come
on at all, the SRS self-check has detected a
malfunction. For your safety, we strongly
recommend that you visit an authorized
Mercedes-Benz Center immediately to have
the system checked; otherwise the SRS may
not be activated when needed in an acci-
dent, which could result in serious or fatal
injury, or it might deploy unexpectedly and
unnecessarily which could also result in
injury.
In addition, improper repair work on the SRS
creates a risk of rendering the SRS inopera-
tive or causing unintended airbag deploy-
ment. Work on the SRS must therefore only
be performed by qualified technicians. Con-
tact an authorized Mercedes-Benz Center.
Warning!
G
Airbags are designed to reduce the potential
of injury and fatality in certain frontal im-
pacts (front airbags), side impacts (side im-
pact airbags and head protection window
curtain airbags) or rollovers (head protec-
tion window curtain airbags). However, no
system available today can totally eliminate
injuries and fatalities.
The activation of the airbags temporarily re-
leases a small amount of dust from the air-
bags. This dust, however, is neither injurious
to your health, nor does it indicate a fire in
the vehicle. The dust might cause some tem-
porary breathing difficulty for people with
asthma or other breathing trouble. To avoid
this, you may wish to get out of the vehicle
as soon as it is safe to do so. If you have any
breathing difficulty but cannot get out of the
vehicle after the airbag inflates, then get
fresh air by opening a window or door.
Warning!
G
To reduce the risk of injury when the front
airbags inflate, it is very important for the
driver and passenger front to always be in a
properly seated position and to wear your
seat belts.
For maximum protection in the event of a
collision always be in normal seated position
with your back against the seat backrest.
Fasten your seat belt and ensure that it is
properly positioned on your body.
Since the airbag inflates with considerable
speed and force, a proper seating and hands
on steering wheel position will help to keep
you at a safe distance from the airbag. Oc-
cupants who are unbelted, out of position or
too close to the airbag can be seriously in-
jured by an airbag as it inflates with great
force in the blink of an eye:

Sit properly belted in a nearly upright
position with your back against the seat
backrest.


60 Safety and SecurityOccupant safety

Adjust the driver seat as far as possible
rearward, still permitting proper opera-
tion of vehicle controls. The distance
from the center of the driver’s breast-
bone to the center of the airbag cover on
the steering wheel must be at least 10 in
(25 cm) or more. You should be able to
accomplish this by a combination of ad-
justments to the seat and steering
wheel. If you have any problems, please
see an authorized Mercedes-Benz Cen-
ter.


Do not lean with your head or chest
close to the steering wheel or dash-
board.


Keep hands on the outside of steering
wheel rim. Placing hands and arms in-
side the rim can increase the risk and
potential severity of hand/arm injury
when driver front airbag inflates.


Adjust the front passenger seat as far as
possible rearward from the dashboard
when the seat is occupied.


Occupants, especially children, should
never lean their heads in the area of the
door where the side airbag inflates.
This could result in serious injuries or
death should the airbag be triggered. Al-
ways sit nearly upright, properly use the
seat belts and appropriate size infant or
child restraint system.


Children 12 years old and under must
never ride in the front seat, except in a
Mercedes-Benz authorized
BabySmart
TM compatible child seat,
which operates with the BabySmart
TM
system installed in the vehicle to deacti-
vate the passenger front airbag when it
is properly installed. Otherwise they will
be struck by the airbag when it inflates
in a crash. If this happens, serious or fa-
tal injury will result.
Failure to follow these instructions can re-
sult in severe injuries to you or other occu-
pants.
If you sell your vehicle, it is extremely impor-
tant that you make the buyer aware of this
safety information. Be sure to give the buyer
this Operator's Manual.
Warning!
G
Accident research shows that the safest
place for children in an automobile is in the
rear seat. Should you choose to place a child
12 years old or under in the front passenger
seat of your vehicle, you must properly use
a BabySmart
TM child restraint which will
turn off the passenger front airbag.
BabySmart
TM will not, however, turn off any
side impact airbag.
It should be noted that with respect to both
front and rear side impact airbags there is a
possibility for a side airbag related injury if
occupants, especially children, are not prop-
erly seated or restrained when next to a side
airbag which needs to deploy rapidly in a
side impact in order to do its job.
To help avoid the possibility of injury, please
follow these guidelines:
(1) Occupants, especially children, should
never place their bodies or lean their
heads in the area of the door where the
side airbag inflates. This could result in


61 Safety and Security
Occupant safety
serious injuries or death should the side
airbag be activated.
(2) Always sit nearly upright, properly use
the seat belts and use an appropriately
sized infant or child restraint system for
all children 12 years old or under.
(3) Always wear seat belts properly.
If you believe that, even with the use of
these guidelines, it would be safer for your
rear seat occupants to have the rear mount-
ed side airbags deactivated, then deactiva-
tion can be accomplished upon your written
request to do so at your authorized
Mercedes-Benz Center at an additional cost.
Please contact your local authorized
Mercedes-Benz Center or call our Customer
Assistance Center at 1-800-FOR-MERCedes
(1-800-367-6372) for details.
iAirbags are designed to activate only in
certain frontal (front airbags) impacts,
side impacts (side impact and head
protection window curtain airbags)
which exceed preset thresholds, and in
certain rollovers (head protection win-
dow curtain airbags). Only during these
events will they provide their supple-
mental protection.
The driver and passengers should al-
ways wear their seat belts. Otherwise it
is not possible for airbags to provide
their supplemental protection.
In case of other types of impacts and
impacts below airbag deployment
thresholds, airbags will not be activat-
ed. The driver and passengers will then
be protected to the extent possible by
a properly fastened seat belt. A proper-
ly fastened seat belt is also needed to
provide the best possible protection in
a rollover.
We caution you not to rely on the pres-
ence of the airbags in order to avoid
wearing your seat belt.
Your vehicle was originally equipped
with airbags that are designed to acti-
vate in certain impacts exceeding a
preset threshold to reduce the poten-
tial and severity of injury. It is important
for your safety and that of your passen-
gers that you replace deployed airbags
and repair any malfunctioning airbags
to ensure that the vehicle will continue
to provide supplemental crash protec-
tion for occupants.