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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 technicians.
Engine adjustments should not be
altered in any way. Moreover, the
specified service and maintenance jobs
must be carried out regularly according
to Mercedes-Benz servicing
requirements. For details refer to the
Maintenance 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
S 500 (California version only);
S 600 (all)
The Sequential Multiport Fuel Injection
(SFI) control module monitors emission
control components that either provide
input signals to or receive output
signals from the control module.
Malfunctions resulting from interruptions
or failure of any of these components
are indicated by the "CHECK ENGINE"
mal-function indicator lamp in the
instrument cluster and are simul-
taneously 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.
An on-board diagnostic connector with
pushbutton and light emitting diode
(LED) is located on the engine
compartment firewall, allowing the
accurate identification of system
malfunctions through the readout of
diagnostic trouble codes.