13 53 205 Removing and installing/replacing left rail (N63, S63)

WARNING: This page is about a different car, the 2013 BMW X5 M, 2012 BMW X5 M, 2011 BMW X5 M, and 2010 BMW X5 M. However, it is still accessible from the selected car via links, so may be relevant.

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

IMPORTANT: Wear full face guard and protective gloves.
Fuel can emerge spontaneously at high velocity when the high-pressure line is released!

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 before removing pipes or individual components.
Use only fluff-free cloths.
Seal all fuel system openings with protective caps or plugs.

Recycling

Fuel escapes when fuel line is detached. Catch and dispose of escaping fuel.

Observe country-specific waste-disposal regulations.

Necessary preliminary tasks

Read out fault memory of DME control unit. If necessary, work through test schedules.
Turn off ignition.
REMOVE FUEL FEED LINE .
Disconnect all PRESSURE LINES on left side.

Unlock plug (1) on high-pressure sensor and disconnect.

Unfasten screws (2).

Tightening torque 13 53 1AZ .

Remove rail (3).

Fig 1: Identifying High Pressure Sensor Plug, Rail And Mounting Screws

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Assemble engine
Check fuel system for leaks.
Delete fault memory.