2000 MERCEDES-BENZ C-Class board

Airbags

1. Driver airbag
2. Front passenger airbag
3. Side impact airbag





The most effective occupant restraint system yet developed for use in production vehicles is the seat belt. In some
cases, however, the protective effect of a seat belt can be further enhanced by an airbag. The driver airbag is located
in the steering wheel hub. The passenger airbag is located in the dashboard ahead of the passenger.
The side impact airbags are located in the front doors. In conjunction with wearing the seat belts with emergency
tensioning retractors, the airbags can provide increased protection for the driver and passenger in certain major
frontal (for front airbags) and side impacts (for side impact airbags). The operational readiness of the airbag system is
verified by the indicator lamp "SRS" in the instrument cluster when turning the electronic key in steering lock to
position 1 or 2. If no fault is detected, the lamp will go out after approximately 4 seconds; after the lamp goes out, the
system continues to monitor the components and circuitry of the airbag system and will indicate a malfunction by
coming on again.
The following system components are monitored or undergo a self-check: crash-sensor(s), airbag ignition circuits,
front seat belt buckles, emergency tensioning retractors, seat sensor . Initially, when the electronic key is turned from
steering lock position 0 to positions 1 or 2, malfunctions in the crash-sensor are detected and indicated (the "SRS"
indicator lamp stays on longer than 4 seconds or does not come on). Have the system checked at your authorized
Merzedes-Benz dealer immediately. In the operational mode, after the indicator lamp has gone out following the initial
check, interruptions or short circuits in the airbag ignition circuit and in the driver and passenger seat belt buckle
harnesses, and low voltage in the entire system are detected and indicated.

Warning !
In the event a malfunction of the "SRS" is indicated as outlined above, the "SRS" may not be operational. For
your safety, we strongly recommend that you visit an authorized Mercedes-Benz dealer immediately to have
the system checked; otherwise the "SRS" may not be activated when needed in an accident, which could
result in serious or fatal injury, or it might deploy unexpectedly and unnecessarily which could also result in
injury.


Front Airbags
The driver and passenger front "SRS" airbags are designed to activate only in certain frontal impacts.
The front passenger airbag deploys only if the front passenger seat is occupied and the indicator lamp on the
center console is not illuminated.

Note:
Heavy objects on front passenger seat can cause the passenger front airbag to deploy in a crash.


Side Impact Airbags
The side impact "SRS" airbags are designed to activate only in certain side impacts. Only the side impact airbag on
the impacted side of the vehicle deploys. The side impact airbag for the front passenger deploys only if the front
passenger
seat is occupied. Side impact airbags operate best in conjunction with a properly positioned and fastened seat belt.

Note:
Heavy objects on front passenger seat can cause the side impact airbag to deploy in a crash.

Important !
The "SRS" airbags are designed to activate only in certain frontal (front airbags) impacts, or side (side
airbags) impacts. Only during these types of impacts, if of sufficient severity to meet the deployment
thresholds, will they provide their supplemental protection. The driver and passenger should always wear the
seat belts, otherwise it is not possible for the airbags to provide their intended supplemental protection. In
cases of other frontal impacts, angled impacts, roll-overs, other side impacts, rear collisions, or other
accidents without sufficient forces, the airbag will not be activated. The driver and passengers will then be
protected by the fastened seat belts. We caution you not to rely on the presence of an airbag in order to
avoid wearing your seat belt. The "SRS" is designed to re duce the potential of injury in certain frontal (front
airbags) impacts, and side (side impact airbags) impacts which may cause significant injuries, however, no
system available today can totally eliminate injuries and fatalities.
The activation of the "SRS" temporarily releases a small amount of dust from the airbags. This dust,
however, is neither injurious to your health, nor does it indicate a fire in the vehicle. The service life of the
airbags extends to the date indicated on the label located on the driverside door latch post. To provide
continued reliability after that date, they should be inspected by an authorized Mer cedes-Benz dealer at that
time and replaced when necessary.
Your vehicle was originally equippend with a Suppleme ntal Restraint system (SRS). The SRS airbags are
designet to activate in centrain impacts exceeding a preset treshold to reduce the potential and severity of
injury.merzedes-Benz encourages you to replace deploy ed airbags and repair any malfunktioning airbags to
ensure the vehicle will continue to provid e maximum crash protections for occupants.


Warning!
It is very important for your safety to always be in a properly seated position and to wear your seat belt.
For maximum protection in the event of a collision always be in normal seated position with your back
against
the backrest. Fasten your seat belt and ensure that it is properly positioned on the body. Since the airbag
inflates with considerable speed and force, a proper seating and hands on steering wheel position will help
to keep you in a safe distance from the airbag:
• Sit properly belted in an upright position with your back against the seat back.
• Adjust the driver seat as far as possible rearward , still permitting proper operation of vehicle controls.
• Do not lean with your head or chest close to the steering wheel or dashboard.
• Keep hands on the outside of steering wheel rim. Placing hands and arms inside the rim can increase the
risk and potential severity of hand/arm injury when the driver front airbag inflates.
• Adjust the front passenger seat rearward as far as possible from the dashboard when the seat is occupied.
• Children 12 years old and under must never ride in
the front seat, except in a Mercedes-Benz authorized BabySmart™ compatible child seat, which operates
with the BabySmart™ system installed in the vehicle to deactivate the passenger side 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 fatal injury will result . Failure to follow these instructions can result in severe
injuries to you or other occupants.

Safety Guidelines for the Seat Belt, Emergency Tensioning Retractor and Airbag

Warning !
• Damaged belts or belts that were highly stressed in an accident must be replaced and their anchoring
points must also be checked. Use only belts installed or supplied by an authorized Mercedes-Benz dealer.
• Do not pass belts over sharp edges.
• Do not make any modification that could change the effectiveness of the belts.
• The "SRS" is designed to function on a one-time-only b asis. An airbag or emergency tensioning retractor
(ETR) that was activated must be replaced.
• No modifications of any kind may be made to any components or wiring of the "SRS". This includes
the installation of additional trim material, ba dges etc. over the steering wheel hub, front passenger
airbag cover, or front door trim panels, and in stallation of additional electrical/electronic equipment on
or near "SRS" components and wiring. Keep area between airbags and occupants free of objects
( e.g. packages purses, umbrellas, etc.).
• An airbag system component within the steering wheel gets hot
after the airbag has inflated.
• Improper work on the system, including incorrect
installation and removal, can lead to possible injury
through an uncontrolled activation of the "SRS".
• In addition, through improper work there is the risk of rendering the "SRS" inoperative. Work on the
"SRS" must therefore only be performed by an authorized Mercedes-Benz dealer
• When scrapping the airbag unit or emergency tensioning retractor, it is mandatory to follow our safety
instructions. These instructions are av ailable at your authorized Merzedes-Benz
• Depending on the considerable deployment speed and the textile structure of the airbags, there is the

possibility of light skin abrasions.

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, ther efore, be carried out only by qualified Mercedes-Benz
authorized dealer 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.

Warning !
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.


On-Board Diagnostic System
The Sequential Multiport Fuel Injection (SFI) control module monitors emission control components that either provide
input signals to or receive output sign als from the control module. Malfunctions resulting from interruptions or failure
of any of these components are indica ted by the "CHECK ENGINE" malfunction indicator lamp in the instrument
cluster and are simultaneously stored in the SFI control module. If the "CHECK ENGINE" malfunction indicator lamp
comes on, have the system checked at your authorized Mercedes-Benz dealer as soon as possible. With some
exceptions the control module switches off the "CHECK ENGINE" indicator lamp if the condition, causing the lamp to
come on, no longer exists during three consecutive cycles. An on-board diagnostic connector is located in the
passenger compartment near to the parking brake pedal, allowi ng the accurate identification of system malfunctions
through the readout of diagnostic trouble codes.