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Home >> BMW >> 2013 >> 740Lxi >> Repair and Diagnosis >> External Pages >> Different car >> Section 394 (Engine - Repair) >> Crankcase Ventilation System >> 11 15 015 Remove/install/replace engine ventilation line

11 15 015 Remove/install/replace engine ventilation line

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Observe any relevant notes in the applicable BMW parts catalogue.

If necessary, individually replace broken connectors (connections) without having to replace all engine ventilation lines.

Nominal width for the connectors of the engine ventilation line: NW19

Necessary preliminary tasks: 

Unclip the connectors (1) and (2) from the bracket.

Unlock connectors (1) and (2) and disconnect.

G09919855Courtesy 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 in the highlighted area.

G10056125Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Both the engine ventilation lines (1) and the purge air line (2) form a single unit and can only be removed or replaced together.
G10056126Courtesy of BMW OF NORTH AMERICA, INC.

Version 1: 

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

Simultaneously pull off the engine ventilation line (1).

G10056127Courtesy of BMW OF NORTH AMERICA, INC.

Version 2: 

Unlock the latch (1) and simultaneously pull it off the engine ventilation line (2).

G11100539Courtesy 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 .

G10056128Courtesy of BMW OF NORTH AMERICA, INC.

Version 1: 

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

This is a bayonet fitting!

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

G10056129Courtesy of BMW OF NORTH AMERICA, INC.

Version 2: 

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

This is a bayonet fitting!

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

G11100542Courtesy of BMW OF NORTH AMERICA, INC.

Replacing connectors: 

Release lock (1).

G11100543Courtesy of BMW OF NORTH AMERICA, INC.

Completely disassemble the lock (1).

Pull off the connector (2) from the engine ventilation line.

G11100544Courtesy of BMW OF NORTH AMERICA, INC.

Make sure the O-ring (1) has been installed correctly.

The O-ring (1) must not be damaged.

Coat the O-ring (1) using lubricant (part no. 83 19 9 407 771)  .

G11100545Courtesy of BMW OF NORTH AMERICA, INC.

Connect the connector (2) to the engine ventilation line.

Part:  Nominal connector width 19.

Position the lock (1).

G11100544Courtesy of BMW OF NORTH AMERICA, INC.

Completely press in the lock (1).

Make sure the lock (1) engages audibly.

G11100543Courtesy of BMW OF NORTH AMERICA, INC.