Mercedes-Benz S-Class 2011 Operator's Manual page 399

Display messages
b
Active Headlamps
Inoperative
b
Malfunction See
Oper. Manual
b
AUTO Lamp Function
Inoperative
b
Please Switch Off
Lights
Adaptive High-beam
Assist
Inoperative
Engine
Display messages
+
Check Coolant
Level See Oper.
Manual
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.
Possible causes/consequences and M Solutions
The active light function is faulty.
X
Visit a qualified specialist workshop.
The exterior lighting is faulty.
X
Visit a qualified specialist workshop.
The light sensor is faulty.
X
Visit a qualified specialist workshop.
USA only:
X
Switch off the daytime running lamps in the on-board computer
( Y page 377).
X
Switch the lights on and off using the light switch.
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 Highbeam Assist is faulty.
X
Visit a qualified specialist workshop.
Possible causes/consequences and M Solutions
The coolant level is too low.
X
Add coolant, observing the warning notes when doing so
( Y page 450).
X
If coolant needs adding more often than usual, have the engine
coolant system checked at a qualified specialist workshop.
Display messages
397
Z