Cooling Levers; Cooling - Mercedes-Benz OM 471 Introduction Into Service Manual

Cooling levers

53 Lower cooling level
54 Upper cooling level

Cooling

The cylinder head has a divided coolant jacket. This means that
the coolant, after it has flushed around the cylinders, flows into
the cylinder head on the inlet side and on the exhaust side. The
advantage is that the coolant first flushes around the fuel
injectors and valve seat rings in the lower cooling level (53) of the
cylinder head.
i Introduction of engine OM 471 and exhaust aftertreatment > 09/2011 >
– This printout will not be recorded by the update service. Status: 09 / 2011 –
As>built configurations
After this the coolant flows into the upper cooling level (54) of the
cylinder head and cools the valve guides. The coolant is collected
there and directed outwards.
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