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HOMESERVICE MANUALSBMW2011135I 2D CONVERTIBLE, AUTOMATIC DCTREPAIR AND DIAGNOSISENGINE PERFORMANCEFUEL DELIVERYFUEL SYSTEM - REPAIRINJECTION NOZZLE AND LINES13 53 332 REMOVING AND INSTALLING/REPLACING FEED LINE (N54T)
2011 BMW 135i 2D Convertible, Automatic DCT

13 53 332 Removing and installing/replacing feed line (N54T)

2011 BMW 135i 2D Convertible, Automatic DCTSECTION 13 53 332 Removing and installing/replacing feed line (N54T)

Special tools required: 

WARNING: Disconnect NEGATIVE BATTERY TERMINAL (risk of fire due to short circuit on dismantling).
Electric fuel pump starts up automatically when door is opened!
Carry out installation work on fuel system only with coolant temperature below 40 °C.

Wear safety goggles.

IMPORTANT: Adhere to conditions of absolute cleanliness when working on the high-pressure fuel system.
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 contamination before removing lines or separate components.
  • Use only fluff-free cloths.
  • Seal all fuel system openings with protective caps or plugs.

Necessary preliminary tasks: 

Recycling: 

Fuel escapes when fuel lines are detached.

Catch and dispose of escaping fuel in a suitable container.

Observe country-specific waste disposal regulations.

Fig 1: Identifying Exhaust Gas Recirculation Pipe
G05501961Courtesy of BMW OF NORTH AMERICA, INC.

Unlock connector (1) and remove.

Unlock and detach fuel line (2).

Catch and dispose of escaping fuel.

Fig 2: Identifying Fuel Line With Connector
G04755094Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 3: Identifying Seal Fuel Lines With Special Tools (13 5 281) And (13 5 282)
G04755095Courtesy of BMW OF NORTH AMERICA, INC.

Slacken nut (1).

Release screw (2).

Remove feed line (3).

Fig 4: Identifying Feed Line, Nut And Screw
G04755096Courtesy of BMW OF NORTH AMERICA, INC.

Close off feed line and high pressure pump with a matching plug from set of special tools 32 1 270 .

Fig 5: Identifying Special Tool (32 1 270)
G04755097Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Feed lines with a soldered bracket must be replaced by the 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, Nut And Screw
G04755096Courtesy of BMW OF NORTH AMERICA, INC.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.