Fuel - Engine Compartment Return Fuel Hoses

Group 13
Fuel System

Bulletin Number
13 03 92 (3589)

Woodcliff Lake, NJ
July 1994
Product Engineering

This Service Information bulletin supersedes S.I. 13 03 92 (3589) dated December 1992, which should be removed from your S.I. binder and discarded. It includes additional parts information indicated by grey shading.

SUBJECT:
Engine Compartment Return Fuel Hoses

MODELS:
All

Situation:

A new return fuel hose has been released for all BMW models. A new style hose clamp has also been introduced which features a "shear-off" hex nut head to avoid over tightening and allow proper torque to be maintained on the fuel hose and line assembly as illustrated in S.I. 13 04 92 (3657). The new style hose clamp is a "one time" clamp, i.e., whenever removal becomes necessary it cannot be reused and must be replaced.

Whenever a return fuel hose is removed from a fuel line/component in the engine compartment, the hose and clamps must be replaced with the new fuel hose and new style clamps.

Application

When a return fuel hose replacement in the engine compartment becomes necessary, only the appropriate fuel hose kit (see current parts microfiche for applicable part numbers), which includes the new style fuel hose and hose clamps, or the new style fuel hose, P/N 13 53 1 731 015 (sold by the meter) and hose clamp, P/N 13 31 1 703 387, should be used.

Note:
The early style hose, P/N 13 31 1 722 262, and fuel hose clamps should still be used for all other applications, i.e., fuel tank vent system, coolant expansion tank, all feed and return fuel hoses outside of the engine compartment, etc.

Warranty Status:

Information only.