Mercedes-Benz 2011 G-Class Operator's Manual page 219

! Only use engine oils and oil filters which
have been approved for vehicles with a
service system. A list of the engine oils and
oil filters that have been tested and
approved according to the Mercedes-Benz
specifications for service products can be
found on the Internet at http://
www.mbusa.com (USA only). Further
information on tested and approved engine
oils and oil filters can be obtained from any
authorized Mercedes-Benz Center.
The following causes engine failure or
damage to the exhaust system:
using engine oils and oil filters that are
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not specifically approved for the service
system
replacing the engine oil and oil filter after
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having exceeded the interval for
replacement prescribed by the
maintenance system
using engine oil additives
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Example: engine oil cap
Engine oil cap (G 55 AMG)
Engine compartment
X
Turn cap : counter-clockwise and remove
it.
X
Add the amount of oil required.
Observe the specifications in the on-board
computer when doing so or fill carefully to the
maximum mark on the oil dipstick.
i The difference in quantity between the
MIN mark and the MAX mark on the
dipstick is approximately 2.1 US qts. (2 l).
! Do not add too much oil. If the oil level is
above the "max" mark on the dipstick, too
much oil has been added. This can lead to
damage to the engine or the catalytic
converter. Have excess oil siphoned off.
For further information on engine oil, see
( Y page 279).
X
Replace cap : on the filler neck and
tighten clockwise.
Ensure that the cap locks into place
securely.
Checking and adding other service
products
Coolant level
Only check the coolant level when the vehicle
is on a level surface and the engine has cooled
down.
X
Turn the key to position 2(
the ignition lock.
X
Check the coolant temperature display in
the instrument cluster.
The coolant temperature must be below
158 ‡ (70 †).
G
Warning
In order to avoid any potentially serious burns:
use extreme caution when opening the
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hood if there are any signs of steam or
coolant leaking from the cooling system, or
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