First commissioning − Cooling system
73
Filling and venting the cooling system
Danger:
There is a risk of burns and scalding.
During filling, the cooling system is to be vented by
means of the threaded vent plugs  on the liquid−-
cooled exhaust turbochargers and on the exhaust
manifold.
Case 1: Engine installed inclined toward the
flywheel side
(The threaded vent plugs  are positioned below
the coolant level in the expansion tank À)
1. Unscrew the threaded vent plugs Â.
2. Fill the coolant slowly through the filler neck of
the expansion tank Á, until coolant emerges
from the threaded vent plugs without bubbles.
3. Screw threaded vent plugs  back in and screw
on cap Á all the way, but do not tighten yet.
Caution:
Overtightened caps can not be opened
again.
4. Let the engine run at a speed of 1200 rpm for
approx. 15 minutes
5. Shut down the engine.
Continue with Step 11, see page 74
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