Mercedes-Benz S 450 4MATIC Operator's Manual page 680

Display
Check
Coolant Level
See Oper. Manual
Warning!
Do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts. You could be seriously burned.
Possible cause/consequence
The coolant level is too low.
!
Do not ignore the low engine coolant level
G
warning. Extended driving with the message and
symbol displayed may cause serious engine
damage not covered by the Mercedes-Benz Lim-
ited Warranty.
Do not drive without a sufficient amount of cool-
ant in the cooling system. The engine will over-
heat, causing major engine damage.
Practical hints
What to do if ...?
Possible solution
Add coolant ( page 579).
If you have to add coolant frequently, have
the cooling system checked by an authorized
Mercedes-Benz Center.
679