Mercedes-Benz S-Class 2012 - Manual (Page 406)

Display messages Possible causes/consequences and M Solutions
b
Please Switch Off
Lights
The lights are still switched on when you leave the vehicle. A
warning tone also sounds.
X Turn the light switch to $ or c.
or
X If the rear fog lamp is switched on: press the light switch in to
the stop.
Adaptive High-beam
Assist inoperative
Adaptive Highbeam Assist is defective.
X Visit a qualified specialist workshop.
Engine
Display messages Possible causes/consequences and M Solutions
+
Check Coolant
Level See Oper.
Manual
The coolant level is too low.
X Add coolant, observing the warning notes when doing so
(
Y page 460).
X If coolant needs to be added more often than usual, have the
engine coolant system checked at a qualified specialist
workshop.
G 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.
! The coolant level is too low. Avoid making long journeys with too little coolant in the cooling
system. The engine will otherwise be damaged.
The display messages and the corresponding symbol that indicate that the coolant level is
too low must not be ignored.
404
Display messages
On-board computer and displays