Mercedes-Benz G-Class Owner's Manual page 146

Engine compartment
144
X
Park the vehicle on a level surface.
Only check the coolant level if the vehicle
is on a level surface and the engine has
cooled down.
X
Slowly turn cap : half a turn anti-clock-
wise to allow excess pressure to escape.
X
Turn cap : further anti-clockwise and
remove it.
If the coolant is at the level of marker
bar ; when cold, there is enough coolant
in coolant expansion tank.
X
If necessary, top up with coolant that has
been tested and approved by Mercedes-
Benz.
X
Replace cap : and turn it clockwise as far
as it will go.
For further information on coolant, see
( Y page 195).
Topping up the windscreen washer sys-
tem/headlamp cleaning system
G
WARNING
Windscreen washer concentrate is highly
flammable. If it comes into contact with hot
engine components or the exhaust system it
could ignite. There is a risk of fire and injury.
Make sure that no windscreen washer con-
centrate is spilled next to the filler neck.
Example: washer fluid reservoir
X
To open: pull cap : upwards by the tab.
X
Top up with the premixed washer fluid.
X
To close: press cap : onto the filler neck
until it engages.
The washer fluid reservoir is used for both the
windscreen washer system and the headlamp
cleaning system.
Further information on windscreen washer
fluid/antifreeze ( Y page 196).
Air filter
Dirt, water and other residue from the air filter
are ejected via two valves. If the valves
become clogged by pollutants, dirt, water and
other residue collect in the drain hoses of the
valves. The valves must then be cleaned.
! The air filter valves must be cleaned espe-
cially after off-road driving. Inadequate
care may result in dirt, water and other res-
idue entering the air-cleaner housing, and
this may cause engine damage.