!
When cleaning, never point the water jet
at the exhaust pipe. The system may oth-
erwise be damaged.
!
When using
a high-pressure cleaner, keep
a minimum distance between the high-
pressure nozzle and the engine parts. Oth-
erwise, parts of the engine may be dam-
aged.
Observe the following minimum distances:
R
about 70 cm with round-spray jets
R
about 30 cm with 25° flat-spray jets
R
about 30 cm with concentrated-power
jets
!
Keep the water jet moving constantly
while cleaning. In this way, you will avoid
causing damage.
Do not point the water jet at:
R
electrical components
R
plug connectors
R
seals
R
hoses
Cleaning the engine
!
Observe the following notes when clean-
ing the engine. This avoids malfunctions
and damage to the engine.
R
When using high-pressure or steam
cleaners, do not point the spray directly
at electrical components and electric
cables.
R
Make sure that no water enters the air
intake and ventilation openings.
R
Treat the engine with preservative
agents after it has been cleaned. When
doing so, protect the belt drive system
from the preservative agent.
R
Use only wax preservative for engines
according to sheet number 385.4 of the
Mercedes-Benz Specifications for
Service Products.
Maintenance
General information
G
WARNING
Before carrying out maintenance or repair
work, you must read the relevant sections of
the
technical
documentation relating to main-
tenance and repair measures, e.g. the Oper-
ating Instructions and workshop information.
In particular, first familiarise yourself with the
legal regulations, e.g. work safety and acci-
dent prevention regulations.
You could otherwise fail to recognise dangers
and injure yourself or others.
Always have maintenance work carried out at
a qualified specialist workshop which has the
necessary specialist knowledge and tools to
carry out the work required.
Mercedes-Benz recommends that you use a
Mercedes-Benz or MTU Service Centre for
this purpose. All work relevant to safety or on
safety-related systems must be carried out at
a qualified specialist workshop.
G
WARNING
Maintenance work that is carried out incor-
rectly or not at all, e.g. not changing the oil
filter or not observing maintenance intervals,
can cause engine damage. Engine damage
can lead to an increased risk of accidents.
Therefore,
observe
the notes on engine main-
tenance in these Operating Instructions.
H
Environmental note
If circumstances demand that you have to do
some maintenance work yourself, environ-
mental protection requirements must be
observed. When disposing of service prod-
ucts,
e.g.
engine oil, you must comply with the
legal requirements. This also applies to all
parts, e.g. filters, that have been in contact
with service products. For vehicles run on
FAME (fatty acid methyl ester) fuel, the spe-
cial instructions on disposing of engine oil
must be observed. For more information, visit
a qualified specialist workshop, e.g. a
56
Maintenance
Maintenance and care
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