Mercedes-Benz G-Class Owner's Manual page 126

Warning and indicator lamps in the instrument cluster
124
Problem
+
The red coolant warn-
ing lamp lights up while
the engine is running.
+
The red coolant warn-
ing lamp lights up while
the engine is running.
4
The red oil level warn-
ing lamp lights up while
the engine is running.
:
The yellow fuel/water
separator warning lamp
lights up while the
engine is running.
È
The yellow air filter
warning lamp lights up
while the engine is run-
ning.
Possible causes/consequences and M Solutions
If the warning lamp lights up regularly, the engine cooling system
is leaking.
X
Have the engine cooling system checked at a qualified specialist
workshop.
If the coolant level is correct, the radiator fan may be faulty.
X
If the coolant temperature is less than 120 †, you can continue
driving to the nearest qualified specialist workshop.
X
Avoid subjecting the engine to heavy loads, e.g. driving in moun-
tainous terrain, and stop/start driving.
The engine oil level has dropped to a critical level. There is a danger
of engine damage.
X
Check the engine oil level (
necessary ( Y page 143).
X
Have the engine checked for leaks if the engine oil needs top-
ping up more often than usual.
The amount of water that has settled in the water separator has
reached the maximum level. The water must be drained off.
X
Visit a qualified specialist workshop immediately.
The engine air filter is dirty.
X
Have the air-cleaner filter element replaced as soon as possible
at a qualified specialist workshop.
The air filter drain hoses are dirty.
X
Clean the air filter drain hoses.
Y page 142) and top up the oil if