11 15 015 Remove/install/replace engine ventilation line

Necessary preliminary work:

Unclip the connector (1) for the oxygen sensors from the holder.

Unlock and disconnect the connector (1) for the oxygen sensors.

Fig 1: Identifying Oxygen Sensor Connectors

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1).

Release both screw bosses (2).

Feed out carrier plate (3).

Unclip the cable for the oxygen sensors at the marked area.

Fig 2: Identifying Carrier Plate, Screw, And Screw Bosses

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Both ventilation lines (1) and the purge air line (2) form a single unit and can only be removed or replaced together.

Fig 3: Identifying Purge Air Line And Ventilation Lines

Courtesy of BMW OF NORTH AMERICA, INC.

Use a screwdriver (3) to unlock the latch mechanisms (2) one after the other.

Remove the ventilation line (1) at the same time.

Fig 4: Removing Ventilation Line

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: The operation describes the left side. The right side is identical to the left side.

Release screws (1).

Tightening torque 11 12 10AZ .

Fig 5: Identifying Screws Of Engine Ventilation Line

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: The operation describes the left side. The right side is identical to the left side.

IMPORTANT: This is a bayonet fitting!

Turn the ventilation line (1) in direction of arrow and afterwards pull it off from the cylinder head cover.

Fig 6: Removing Ventilation Line

Courtesy of BMW OF NORTH AMERICA, INC.