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309
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 while
driving.
The fuel filler cap is not closed tightly. ̈ Check the fuel filler cap ( page 247).
If it is not closed properly:
̈ Close the fuel filler cap.
If it is closed properly:
̈ Have the fuel system checked by an
authorized Mercedes-Benz Center.
i
Some states may by law require you to visit
a workshop immediately as soon as the engine
malfunction indicator lamp comes on. Check
local requirements.