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Home >> BMW >> 2014 >> 435i 2D Convertible >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine - Repair - F33 >> General And Safety Information >> Functional description of Oil supply >> System functions >> Pressure circulation lubrication
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Pressure circulation lubrication

The engine is equipped with pressure circulation lubrication. The oil drawn in by the oil pump via an intake pipe from the oil pan flows through the full-flow oil filter. The oil then enters the main oil gallery, which usually runs in the engine block parallel to the crankshaft. Ducts lead to the main bearings of the crankshaft. The crankshaft and connecting rod are supplied with oil by the main bearings, as the crankshaft has corresponding bore holes. Part of the oil is branched off the main oil gallery and fed to the cylinder head at the corresponding positions.

NOTE: Technical modifications may be introduced at any time. Observe model-specific service information and any applicable service bulletins for updates or changes.