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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 driving.
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 en-
gine to its limp-home (emergency opera-
tion) 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.
Your gas tank is empty. ̈ After refuelling, start, turn off and restart the
engine three or four times in succession.
The limp-home mode is canceled. You do not
need to have your vehicle checked.
The fuel cap is not closed tightly. ̈ Check the fuel cap.