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Practical hints
What to do if ...
Problem Possible cause/consequence Suggested solutions
ú (USA only)
± (Canada only)
The yellow engine malfunc-
tion indicator lamp comes on
while the engine is running.
There is a malfunction in:
ț The fuel injection system
ț The ignition system
ț The emission control system
ț Systems which effect emissions
Such malfunctions may result in excessive
emissions values and may switch the
engine to its limp-home (emergency
operation) mode.
̈ Have the vehicle checked as soon as possi-
ble 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 accu-
rate identification of system malfunctions
through the readout of diagnostic trouble
codes. It is located in the front left area of
the footwell next to the parking brake pedal.
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.