Mercedes-Benz OM 904 LA Operating Instructions Manual page 47

Operation
Starting the engine for the first time
i
If a heating system is connected to the
cooling system, all heating system
valves must be opened while the cool-
ing system is being topped up.
Otherwise, there might be too little
coolant in the cooling system after it is
filled.
4
Only close the heating system valves once
the engine has been running for a brief pe-
riod and, where applicable, the coolant has
been topped up.
Check the engine for leaks.
Check the hose fittings, hose clamps
and pipe connections on the engine as
well as the oil feed and return lines on
the exhaust gas turbocharger for leaks
and firm seating, and retighten if nec-
essary.
44
Check the engine oil level approximate-
ly 5 minutes after stopping the engine
and add oil up to the maximum mark on
the dipstick if necessary.
Check brackets secured to the engine
for firm seating.
Check the securing bolts on the ex-
haust manifold, engine mountings,
coolant pump, starter motor and air
compressor for tightness.