13 53 594 Replacing fuel low-pressure sensor

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 BMW 535xi, 2010 BMW 535i, 2009 BMW 535xi, 2009 BMW 535i, and 2008 BMW 535xi. However, it is still accessible from the selected car via links, so may be relevant.

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

Wear protective 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 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 THROTTLE BODY .

Recycling:

Fuel escapes when fuel lines are detached.

Catch and dispose of escaping fuel in a suitable container.

Observe country-specific waste-disposal regulations.

Apply silicone-free multifunction spray (part number 83 23 0 418 567) on to supports (1) of base well bracket (2).

Unplug connector (3) and (4) from base well.

Slide base well (2) in direction of arrow.

Fig 1: Applying Silicone-Free Multifunction Spray On Base Well Bracket Supports

G06904516

Courtesy of BMW OF NORTH AMERICA, INC.

Insert special tool 00 7 300 in mounting points (1) on base well.

NOTE: Place tips of special tool 00 7 300 between retainers (2) and then center (arrow).

Fig 2: Inserting Special Tools (00 7 300) In Base Well Mounting Points

G06904517

Courtesy of BMW OF NORTH AMERICA, INC.

Detach base well (1) from bracket (2) with special tool 00 7 300.

Fig 3: Removing Base Well From Bracket Using Special Tool (00 7 300)

G06904518

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock connector (1) and remove.

Release low-pressure sensor (2).

Tightening torque: see 4AZ in 13 53 FUEL INJECTION NOZZLES AND PIPES .

IMPORTANT: When releasing and tightening down sensor, grip at width across flats of low pressure line (3).

NOTE: Seal low pressure line (3) if necessary with a matching plug from set of special tools 32 1 270.

Fig 4: Identifying Plug, Low-Pressure Sensor And Line

G05502057

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check fuel system for tightness.

Check function of DME.