Oil Filtration And Oil Cooling - BMW N55 Manual

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Oil Filtration and Oil Cooling

The oil filter housing is made from Duroplast. Based on the application, two types of
engine oil coolers may be used. Depending on the oil temperature, a thermostat on the
oil filter housing controls the oil flow through the oil cooler.
30
N55 Engine
Explanation
Intake pipe
Oil pump
Unfiltered oil duct
Oil filter
Main oil duct (filtered oil duct)
Chain tensioner
VANOS solenoid valve, exhaust side
VANOS solenoid valve, intake side
VANOS adjustment unit, intake side
VANOS adjustment unit, exhaust side
Connection to exhaust turbocharger lubrication
Connection for oil spray nozzles
Crankshaft bearing
Oil duct for oil pressure control
Oil pressure control valve
Oil duct for vacuum pump lubrication
Vacuum pump