Mercedes-Benz CL-Class 2006 Owner's Manual page 469

Practical advice
Troubleshooting
Problem
±
448
Possible cause/consequence
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.
Suggested solutions
Have the vehicle checked as soon as pos-
sible at a qualified specialist workshop.