Maintenance Service; Additional Work; Additional Work With Every Third Maintenance Service - Mercedes-Benz OM 904 LA Operating Instructions Manual

Work schedule overview

Maintenance service

Engine:
Oil change and filter replacement
i
For operation with diesel fuel:
Change the engine oil and replace
the oil filter at least every two
years.
If operated with FAME fuel (bio-diesel
fuel):
Change the engine oil and replace
the oil filter at least once every
year.
Poly-V-belt:
Check condition
Checking for leaks and general
condition
Check for points of abrasion and incorrect
positioning.
Engine:
Lines and hoses on the engine
Intake pipe between the air cleaner and
engine
Cooling and heating system
Checking and correcting fluid level
If more fluid is lost than can be accounted
for by normal consumption, trace the
cause and rectify it
Engine cooling system:
Check and correct fluid level and
antifreeze/corrosion inhibitor concen-
tration

Additional work

Valve clearance:
Check and adjust
i
The valve clearance must be adjusted
during the first maintenance service
and then during the 3rd, 5th, 7th main-
tenance services and so on.
Maintenance
Work schedule overview
Additional work with every
third maintenance service
Fuel filter:
Replace filter
Fuel prefilter with water separator:
Replace filter element
i
If operated with FAME fuel:
Replace the fuel filter together with
engine oil change and filter replace-
ment.
Engine brake*:
Check condition and setting
Coolant:
Renew
i
Renewal interval depends on the cool-
ant additive used (see Mercedes-Benz
Specifications for Service Products).
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