13 31 025 Checking fuel return pressure (N57 D30 U/O/T/S 0/1)

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Special tools required:

NOTE:

Connect BMW diagnosis system.

Recycling:

Catch and dispose of escaping fuel in a suitable container.

Observe country-specific waste disposal regulations.

Disconnect snap fastener (3) from return line (1).

Fig 1: Identifying Snap Fastener And Fuel Feed Line

Courtesy of BMW OF NORTH AMERICA, INC.

Insert special tool 13 6 030 into the disconnected return line.

Screw onto special tool 13 6 030 , 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 6 030 . Or directly screw the pressure manometer from the set of special tools 13 3 060 onto the special tool 13 6 030 .

Fig 2: Inserting Special Tool (13 6 030) Into Return Line

Courtesy of BMW OF NORTH AMERICA, INC.

Build up fuel return pressure. Read off fuel return pressure on IMIB and compare with values in diagnosis system.