1999 MERCEDES-BENZ C-CLASS sensor

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 vehicl e 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 shou ld be repaired promptly. Otherwise, excessive
unburned fuel may reach the catalytic converter causing it to overheat, which could start a fire.



Warning!
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.

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Airbags

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




The most effective occupant restraint system yet developed fo
r 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 or rear impacts (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. 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 (when present). 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). In the operational mode, after the indicator lamp has gone
out following the initial check, interruptions or short circ uits 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 unneccesarily which could also result in
injury.


Front Airbags
The driver and passenger front "SRS" airbags are designed to activate only in certain frontal or rear impacts.
The front passenger airbag deploys only if the passenger seat is occupied.

Note:

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


Side Impact Airbags
The side impact "SRS" airbags are designed to activate onl y in certain side impacts. Only the side airbag on the
impacted side of the vehicle deploys. The side impact ai rbag for the front passenger deploys only if the seat is
occupied. Side impact airbags operate best in conjunct ion with a properly positioned and fastened seat belt.
Note:
Heavy objects on passenger seat can cause the side impact airbag to deploy in a crash









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Combination Switch

1. Low beam (exterior lamp switch position
)
2. High beam (exterior lamp switch position
)
3. High beam flasher (high beam available independent of exterior lamp switch position)
4. Turn signals, right
5. Turn signals, left
To signal minor directional changes, such as changing lanes on a highway, move combination switch to
the point of resistance only and hold it there. To operate the turn signals continuously, move the combination
switch past the point of resistance (up or down). The switch is automatically canceled when the steering wheel
is turned to a large enough degree.

6. Control for windshield wiper/washer system:
Push briefly for a single wipe without adding washer fluid (use only when windshield is wet)
Push past detent point:
• windshield washer system
• optional headlamp cleaning system (only in exterior lamp positions
or ).
When the washer system is activated, the wipers also operate for a limited time.
7. Windshield wiper
0 Wiper off
I Intermittent wiping (optional rain sensor:
One initial wipe, pauses between wipes are automatically controlled by a rain sensor
monitoring the wetness of the windshield.)
II Normal wiper speed
III Fast wiper speed

Note:
The windshield washer reservoir, hoses and nozzles are automatically heated.


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Night Security Illumination
(Vehicles with Antitheft AlarmSystem)

When exiting the vehicle after driving with the exterior lamps on, they switch on again for added illumination for
approximately 30 seconds after closing the last door. The lamp-on time period can be changed at your
Mercedes-Benz dealer.


Inside Rear View Mirror
Manually adjust the mirror.
Use your inside mirror to determine the size and distan ce of objects seen in the passenger side convex mirror.


Antiglare Night Position
With the electronic key in steering lock position 2, the mirror reflection brightness responds to changes in light
sensitivity. With gear selector lever in position "R", or wi th the interior lamp switched on, the mirror brightness does
not respond to changes in light sensitivity.

Note:
The automatic antiglare function is restricted, if incoming light is not aimed directly at sensors in the mirror.


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Outside Temperature Indicator
The temperature sensor is located in the front bumper area. Due to its location, the sensor can be affected by road or
engine heat during idling or slow driving. This means that the accuracy of the displayed temperature can only be
verified by comparison to a thermometer placed next, to the sensor, not by comparison to external displays (e.g. bank
signs etc.).
Adaptation to ambient temperature takes place in steps and depends on the prevailing driving conditions (stop-and-
go or moderate, constant driving) and amount of temperature change.

Warning !
The outside temperature indicator is not designed to serve as an Ice-Warning Device and is therefore un-
suitable for that purpose. Indicated temperatures just above the freezing point do not guarantee that the road
surface is free of ice.


Coolant Temperature Gauge
If the antifreeze mixture is effective to -22°F (-30°C), the boiling point of the c oolant in the pressurized cooling system
of your vehicle is approx. 266°F (130°C). During severe operating conditions and stop-and-go city traffic, the coolant
temperature may rise close to the red marking. The engine should not be operated with the coolant temperature in
the red zone. Doing so may cause serious engine damage wh ich is not covered by the Mercedes-Benz Limited
Warranty.

Warning !
• Driving when your engine is badly overheated can cause some fluids which may
have Beaked 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 engine hood. Stay away from the engine if you see or hear steam
coming from it.
Turn off the engine, get out of the car and do not stand near the car until it cools down.


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