Mercedes-Benz 2008 CL-Class Operator's Manual page 557

Operation
Engine compartment
Other display messages
If the SmartKey or KEYLESS-GO* start/
stop button is not in position 2, the follow-
ing message will appear:
"For Engine Oil Level
Ignition Must be On"
Switch on the ignition ( page 365).
If you see the message
"Need More Time
to Check
Engine Oil Level"
If engine is at operating temperature,
wait 5 minutes before repeating check
procedure.
If engine is not at operating tempera-
ture yet, wait 30 minutes before
repeating check procedure.
556
If you see the message
"Engine Oil Level
Not Measurable
With Running Engine"
Turn off the engine.
If the engine is at operating tempera-
ture, wait 5 minutes before checking
oil.
If the engine is not at operating temper-
ature yet, you must wait 30 minutes
before checking oil.
If there is excess engine oil with the engine
at operating temperature, the following
message will appear:
"Reduce
Engine Oil Level"
Have excess oil siphoned or drained
off. Contact an authorized
Mercedes-Benz Center.
!
Excess oil must be siphoned or drained off.
It could cause damage to the engine and catalyt-
ic converter not covered by the Mercedes-Benz
Limited Warranty.
For more information on messages in the
multifunction display concerning engine
oil, see the "Practical hints" section
( page 670).