Lamp - Mercedes-Benz S 350 Owner's Manual

Problem
The yellow engine diag-
±
nostic warning lamp is lit
while the engine is run-
ning.
Possible cause/consequence
The fuel tank has run dry.
There may be a malfunction:
in the fuel injection system
in the exhaust system or
in the ignition system
The emission limit values may be exceeded
and the engine may be running in emergen-
cy mode.
Practical advice
Troubleshooting
Suggested solutions
Start the engine three to four times after
refuelling.
Emergency running mode is cancelled.
The vehicle does not have to be checked.
Have the vehicle checked as soon as pos-
sible at a qualified specialist workshop.
473