12 61 285 Replacing level switch for engine oil (Z3 M54)

WARNING: This page is about a different car, the 2003 BMW 525i, 2002 BMW 525i, 2001 BMW 525i, and 2000 BMW 528i. However, it is still accessible from the selected car via links, so may be relevant.

Turn off ignition.

Release oil filter cap so that engine oil from oil filter can flow back into oil pan.

Release screws.

Remove cruciform reinforcement (1).

Remove underbody paneling. See 13 32 051 REPLACING FUEL FILTER (M54)

Drain engine oil.

Fig 1: Removing Cruciform Reinforcement

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Release nuts (2).

Remove level switch (3).

Installation:

Clean sealing surface on oil sump and replace level switch seal.

Fig 2: Removing Engine Oil Level Switch

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Fill system with engine oil.

Reinstall oil filter cap.

Tightening torque. Refer to ENGINE ELECTRICAL SYSTEM - TIGHTENING TORQUE .