13 53 332 Removing and installing/replacing feed line (N54, N53)

Special tools required: 

• 13 5 020
• 13 5 281 
• 13 5 282 
• 32 1 270

Wear protective goggles.

Introduced contaminants can cause malfunctions in the system!

• Do not allow any dirt particles or foreign bodies to get into the system.
• Remove all traces of dirt before removing pipes or individual components.
• Use only fluff-free cloths.
• Seal all fuel system openings with protective caps or plugs.

Necessary preliminary tasks: 

• Remove INTAKE AIR MANIFOLD

Recycling: 

Fuel escapes when fuel lines are detached.

Catch and dispose of escaping fuel in a suitable container.

Observe country-specific waste-disposal regulations.

N53 only: 

Lay exhaust gas recirculation (1) upwards to one side. Do not  remove.

Fig 1: Identifying Exhaust Gas Recirculation

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock plug (1) and remove.

Unlock and detach fuel line (2).

Catch and dispose of escaping fuel.

Fig 2: Detaching Fuel Line

Courtesy of BMW OF NORTH AMERICA, INC.

Seal fuel lines with special tools 13 5 281 and 13 5 282.

Fig 3: Identifying Special Tools (13 5 281 And 13 5 282)

Courtesy of BMW OF NORTH AMERICA, INC.

Slacken nut (1).

Release screw (2).

Remove feed line (3).

Fig 4: Identifying Feed Line Screw And Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Close off feed line and high-pressure pump with a matching plug from special tool kit 32 1 270. 

Fig 5: Identifying Special Tool Kit (32 1 270)

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

Feed lines with soldered holder must be replaced by new version with elastomer clamp holder. Observe installation position of fuel low-pressure sensor. Lines for solenoid switches are laid behind  fuel line.

Install feed line (3).

In so doing, tighten screw connection hand-tight only 

Fig 6: Identifying Feed Line Screw And Nut

Courtesy of BMW OF NORTH AMERICA, INC.

Tightening torque 13 53 9AZ .

Assemble engine.

Check fuel system for leaks.

Check function of DME.