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2003 BMW 325xi Base Sedan
BMW Home > 2003 BMW 325xi Base Sedan > EngineOil Circulation 

Oil Circulation

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O-Ring - Engine Oil Dipstick (9 X 2.2 mm)

O-Ring - Engine Oil Dipstick Tube to Oil Pan (19.5 X 3 mm)

Oil Filler Caps and Pipes

Oil filler caps and pipes are the manner in which oil is introduced into the engine and its sump system. Always inspect or replace the gaskets when servicing the oil caps.
Engine Oil Filler Cap
Engine Oil Filler Cap  
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Note: Imprinted with "BMW Recommends Castrol" and oil can logo, For oil filler cap imprinted only with oil can logo, see part number 11 12 1 743 294,

Genuine BMW
Brand Rating

Gasket - Valve Cover to Coil Cover Oil Filler

Oil Level Sensors

Engine oil is stored in either a wet sump (bottom of engine) or dry sump (separate holding area away from engine). These sensors monitor and report the oil level. Don't count on these sensors for the life of your engine; make a habit of checking the level manually every third fill up.
Engine Oil Level Sensor with O-Ring

O-Ring for Oil Level Sensor
BMW Home  >  2003 BMW 325xi Base Sedan > Engine  >  Oil Circulation 

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Browse Oil Circulation for all 3-Series E46 (1999-2006) vehicles

Page last updated: Wed 4/18/2018 01:10:20 AM
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