Service Product - Mercedes-Benz Unimog Operating Instructions Manual

Service products
362
If the outside temperature is under -20 †,
Mercedes-Benz strongly recommends
using engine oils of SAE class 5W-30 or
0W-30.
Use only all-season oils.
Engine oil SAE classes (viscosity)
Oil change intervals are dependent on the fol-
lowing:
the operating conditions of the vehicle
R
the grade of the engine oil used
R
X
Select the SAE class of engine oil in accord-
ance with outside temperatures.
The maximum oil change interval can only be
achieved by using engine oils of particularly
high quality in accordance with Sheet No.
228.51 of the Mercedes-Benz Specifications
for Service Products.
Adding/topping up the engine oil
! There is a risk of damage to the catalytic
converter or to the engine if too much oil is
added. Have excess oil drained off.
When topping up, Mercedes-Benz recom-
mends that you only use engine oils of the
same grade and SAE class as the oil filled at
the last oil change.
Check the engine oil level in the on-board
computer ( Y page 125) before you top up the
oil ( Y page 297).
Miscibility of engine oils
The benefits of high-quality engine oils dimin-
ish if you mix them.
Engine oils are differentiated according to:
engine oil brand
R
quality grade (Sheet No.)
R
SAE viscosity class
R
If, in exceptional circumstances, the type of
engine oil currently used is not available,
another engine oil approved for Mercedes-
Benz may be used.
Transmission oil
! When changing the oil, if you replace the
synthetic oil with a mineral transmission
oil, you may damage the assembly. Before
the oil change, check whether the use of a
mineral transmission oil is permitted. Infor-
mation is available from any Mercedes-
Benz Service Centre.
Drive axle and transmission
Depending on the vehicle version, the drive
axles, transmission and PTO shaft transmis-
sion may be filled with a high-quality synthetic
oil at the factory.
If, when changing the transmission oil, a min-
eral oil is to be used instead of synthetic oil,
you must first make sure that this is permis-
sible. Only use transmission oil approved by
Mercedes-Benz. Information about approved
transmission oil can be obtained from a quali-
fied specialist workshop or on the Internet at
http://bevo.mercedes-benz.com.
Observe the notes on intervals for oil change
in the Service Booklet.
Further information can be obtained from a
Mercedes-Benz Service Centre.
Coolant
G
WARNING
If antifreeze comes into contact with hot com-
ponents in the engine compartment, it may
ignite. There is a risk of fire and injury.