Owners Manual

349
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.
A loss of pressure has been detected in the
fuel system. The fuel cap may not be closed
properly or the fuel system may be leaky.
왘 Check the fuel cap.
If it is not closed properly:
왘 Close the fuel cap.
If it is closed properly:
왘 Have the fuel system checked by an
authorized Mercedes-Benz Center.