Mercedes-Benz 2008 S-Class, Operator'S Manual

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602
Practical hints
What to do if …?
Problem Possible cause/consequence Suggested solution
±
The yellow engine malfunc-
tion indicator lamp comes
on while driving. There is a malfunction in:
앫
The fuel management system
앫
The ignition system
앫
The emission control system
앫
Systems which affect emissions
Such malfunctions may result in excessive
emissions values and may switch the en-
gine to its limp-home (emergency opera-
tion) mode.
왘
Have the vehicle checked as soon as
possible by an authorized
Mercedes-Benz Center.
An on-board diagnostic connector is
used by the service station to link the
vehicle to the shop diagnostics system.
It allows the accurate identification of
system malfunctions through the read-
out of diagnostic trouble codes. It is lo-
cated in the front left area of the
footwell.
i
Some states may by law require you to visit
a workshop as soon as the engine malfunction
indicator lamp comes on. Check local require-
ments.