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Practical hints
What to do if …
Problem Possible cause Suggested solution
ú (USA only)
± (Canada only)
The yellow engine malfunction
indicator lamp comes on while
driving.
There is a malfunction in:
ț The fuel management
system
ț The ignition system
ț The emission control
system
ț Systems which affect
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
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 identifi-
cation 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.