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What to do if …
304
Engine
Problem Possible cause/consequence Suggested solutions
? (USA only)
± (Canada only)
The yellow engine malfunction
indicator lamp comes on when
the engine is running.
There may be a malfunction in:
R
The fuel management system
R
The ignition system
R
The emission control system
R
Systems which affect emis-
sions
Such malfunctions may result in
excessive emissions values and
may switch the engine to limp-
home (emergency operation)
mode.
X
Have the vehicle checked as soon as possible at an authorized
Mercedes-Benz Center.
i
Some states may by law require you to visit a workshop as soon
as the engine malfunction indicator lamp comes on. Check local
requirements.
Practical hints