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

WARNING: This page is about a different car, the 2002 BMW Z3 and 2001 BMW Z3. 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).

Fig 1: Removing Cruciform Reinforcement

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Remove underbody paneling.

Drain engine oil.

Disconnect plug connection (1).

Release nuts (2).

Remove level switch (3).

Fig 2: Removing Level Switch

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Installation:

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

Installation:

Fill system with engine oil.

Resecure oil filter cap.

Tightening torque, 11 42 2AZ. Refer to OIL FILTER AND LINES .