Necessary preliminary work

• Switch off ignition
• only E70, E81, E87, E82, E88, E90, E91, E92, E93: 

  Remove UNDERBODY PROTECTION

• Drain off ENGINE OIL

Release connector (1) and remove.

Unscrew nuts.

Tightening torque 12 61 2AZ .

Remove oil level sensor (2).

Installation note: 

Clean sealing surface on oil sump.

Replace gasket on oil level sensor.

An excessively low torque value will result in oil leaks.

An excessively high torque value will result in damage to the oil level sensor.

Top up engine oil.

Fig 1: Identifying Oil Level Sensor And Connector

Courtesy of BMW OF NORTH AMERICA, INC.