13 53 240 Replacing complete injection pipe (M54)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2006 BMW X5, 2006 BMW X3, 2005 BMW X5, 2005 BMW X3, and 2004 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Switch off ignition
Remove cover for fuel injectors

IMPORTANT: Mark plug connections (1) of monitor sensor for cylinder banks 1 -3 and 4 -6 to prevent them from being mixed up when they are installed later.

Unclip plug connections (1) from holders and disconnect.

Fig 1: Detaching Terminal Strip

Courtesy of BMW OF NORTH AMERICA, INC.

When replacing injection pipe:

Remove both holders for plug connections (1) from injection pipe.

Disconnect plug connection (3) on solenoid valve of VANOS adjustment unit.

Detach terminal strip (4) for fuel injectors from injection pipe.

Recycling:

Fuel in fuel lines is under pressure (approx. 3 - 5 bar). Fuel escapes when fuel lines are detached. Catch and dispose of escaping fuel.

Observe country-specific waste-disposal regulations.

NOTE: For a better overview, this work step is shown on an engine that has been removed.

Unclip fuel line (1) from holder (2).

Fig 2: Unclipping Fuel Line

Courtesy of BMW OF NORTH AMERICA, INC.

Follow instructions for unlocking fuel line. Refer to REPLACING, SEALING FUEL HOSES .

Unlock fuel line (1) from cylinder head at rear.

Release screws (1) and remove injection pipe with fuel injectors.

Fig 3: Removing Injection Pipe

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Coat sealing rings of fuel injectors with anti-seize agent to facilitate fitting of injection pipe.