13 53 594 Replacing fuel low-pressure sensor (N55)

WARNING: This page is about a different variant/trim than selected.

Special tools required:

32 1 270

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 during repair work 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 lines or separate 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.

NOTE: If a Sensata fuel low-pressure sensor (part number 7 614 317 ) is installed and fails, it must be replaced by a Bosch fuel low-pressure sensor along with the feed line. This is because the Bosch fuel low-pressure sensor is not compatible with the feed line of Sensata fuel low-pressure sensor.

Replace the FEED LINE .

In addition, the integration level must be checked. Integration levels after and including 11-9-5xx are adapted to the Bosch sensor. Only integration levels up to 11-9-5xx must be updated.

Release screws (1) underneath cable channel (2).

Replace aluminium screws.

Tightening torque 13 53 10AZ .

Fig 1: Identifying Cable Channel And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock connector (1) and remove.

Release fuel low-pressure sensor (2).

Tightening torque 13 53 5AZ .

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 2: Identifying Fuel Low-Pressure Sensor, Connector, And Low Pressure Line

Courtesy of BMW OF NORTH AMERICA, INC.

Assemble engine.

Check fuel system for tightness.

Check function of DME.