11 72 194 Removing And Installing/Replacing Left Secondary Pipe (N73)

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Necessary Preliminary Tasks:

Drain engine oil. Refer to 00 00 610 ENGINE OIL SERVICE (N73) .
Remove center of assembly partition wall. Refer to 51 71 085 REMOVING AND INSTALLING CENTER OF AASSEMBLY COMPARTMENT BULKHEAD .
Remove reinforcement plate.
Remove lower section of steering spindle. Refer to 32 31 070 REMOVING AND INSTALLING / REPLACING LOWER SECTION OF STEERING SPINDLE .

Disconnect air connection (1) on secondary valve.

Unscrew bolt (2).

Remove secondary valve (3).

Detach high-pressure line (4). Refer to 13 53 175 REMOVING AND INSTALLING/REPLACING ALL PRESSURE LINES (N73) .

Tightening torque, refer to 13 53 2AZ in FUEL SYSTEM - TIGHTENING TORQUES .

Release screw (7) and place solenoid valve (5) to one side.

Unscrew bolt (8).

Release secondary pipe (9) and lay to one side.

Installation:

Fit secondary pipe and secondary valve without gaps.

Fig 1: Identifying Secondary Pipe Bolt (Left)

G03292132

Courtesy of BMW OF NORTH AMERICA, INC.

Detach fuel lines (1) from holder (2).

Press fuel line (1) downwards.

IMPORTANT: Press fuel lines (1) downwards carefully, risk of damage.

Fig 2: Detaching Fuel Lines From Holder (Left)

G03292133

Courtesy of BMW OF NORTH AMERICA, INC.

Release screw (1), twist oil guide tube (2) and lift out.

Installation:

Replace sealing ring on guide tube.

Apply light coat of oil to seal.

Tightening torque, refer to 11 43 1AZ in ENGINE - TIGHTENING TORQUES .

IMPORTANT: Pay attention to routing of B+ lead. The secondary pipe can only be removed if the oil guide tube is removed.

Fig 3: Removing Oil Guide Tube And Retaining Screw

G03292134

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.