G-Class Owner's Manual - Mercedes G-Class, G-Wagon, G500, G55 ...

Operation
Engine compartment
Environmental note H
When topping up the oil, take care not to
spill any. Oil must not be allowed to escape
into the soil or waterways. You would otherwise
be damaging the environment.
You will find further information in the
"Technical data" section ( page 408).
Oil level in the automatic
transmission
There is no need to check the oil level in
the automatic transmission. Have any oil
loss from the automatic transmission or
problems with gear shifts checked at a
qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre.
258
Coolant
Coolant is a mixture of water and antifreeze
and corrosion inhibitor. Only check
the coolant level when the vehicle is level
and the engine has cooled down.
Risk of injury G
The cooling system is pressurised. You
should therefore only unscrew the cap once
the engine has cooled down. The coolant
temperature display must show less than
70 °C. You could otherwise be scalded by
any hot coolant which escapes.
Checking the coolant level
The expansion tank is in the engine compartment
on right-hand side when viewed
in the direction of travel.
1 Cap
Nur fuer internen Gebrauch
P20.30-2154-31
Slowly unscrew cap 1 by about half a
turn in the direction of the arrow and allow
any excess pressure to escape.
Continue turning the cap and remove
it.