13 31 029 Checking fuel delivery pressure (N54, N54T)

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

Special tools required:

13 5 270
11 4 310
11 5 364
13 3 060

Necessary preliminary tasks:

Connect BMW diagnosis system

IMPORTANT: Lines are under pressure!

Wear safety goggles and gloves.

Fuel can emerge spontaneously at high velocity when the fuel line is released!

Recycling:

Catch and dispose of escaping fuel with auxiliary materials.

Observe country-specific waste disposal regulations.

Disconnect snap fastener (1) of fuel line.

Fig 1: Identifying Fuel Line Snap Fastener

Courtesy of BMW OF NORTH AMERICA, INC.

Insert special tool 13 5 270 into disconnected fuel line.

Screw onto special tool 13 5 270 , the special tool 11 4 310.

Screw IMIB 100 bar pressure sensor (1) on the special tool 11 4 310.

NOTE: As an alternative to the 100 bar IMIB pressure sensor (1), the 25 bar pressure sensor can also be used. For this, screw on special tool 11 5 364 instead of special tool 11 4 310 into special tool 13 5 270 . Or directly screw the pressure manometer from the set of special tools 13 3 060 onto the special tool 13 5 270 .

Fig 2: Installing IMIB 100 Bar Pressure Sensor And Special Tool (11 4 310)

Courtesy of BMW OF NORTH AMERICA, INC.

Establish fuel delivery pressure. Read off fuel delivery pressure on IMIB and compare with values in diagnosis system.

Required follow-up work:

Check fuel system for tightness.