Operation Manual

347
Practical hints
What to do if …
Problem Possible cause/consequence Suggested solution
ú (USA only)
± (Canada only)
The yellow engine malfunction
indicator lamp comes on when
the engine is running.
The fuel filler cap is not closed tightly. 왘 Check the fuel filler cap (컄 page 279).
If it is not closed properly:
왘 Close the fuel filler cap.
If it is closed properly:
왘 Have the fuel system checked by an
authorized Mercedes-Benz Center.