Campaign - Warranty Extension For HDP Fuel Pump

SI B 13 03 09
Fuel System

March 2010
Technical Service

This Service Information bulletin supersedes SI B13 03 09 dated March 2010.

[NEW] designates changes to this revision

SUBJECT
N54 Special Limited High-pressure Pump (HDP) Emissions Warranty of 10 Years/120,000 Miles

MODEL
MY 2007, 2008, 2009 E60, E61 - 535i, 535xDrive with N54 engine

MY 2007, 2008, 2009 E90, E92, E93 - 335i, 335xDrive, 335Ci, 335CixDrive, 335Cic with N54 engine

MY 2008, 2009 E82, E88 - 135is with N54 engine

MY 2009 E89 - Z4 sDrive 35i with N54 engine

MY 2009 E71 - X6 xDrive 35i with N54 engine

SITUATION

BMW has become aware of a potential problem that could affect the durability of the High-pressure Fuel Pump (HDP) of certain MY 2007, 2008, and 2009 BMW automobiles equipped with N54 engines. We estimate that only a small percentage of vehicles will actually develop a problem. Vehicles affected may have the Service Engine Soon lamp illuminated with various low fuel pressure-related faults (e.g., 29DC, 29F1, 29F2, 2FBF) stored in the Engine Control Module (DME). Also, the affected vehicles may experience an extended engine starting time ("long crank") or reduced engine performance ("engine failsafe mode") when the High-pressure Fuel Pump malfunctions.

CORRECTION

In the event that the High-pressure Fuel Pump of an MY 2007, 2008 or 2009 3 Series vehicle (335i/xi Sedan/Coupe/Convertible), MY 2007, 2008 or 2009 5 Series vehicle (535i/xi Sedan/Sports Wagon), MY 2008 or 2009 1 Series vehicle (135is Coupe/Convertible), MY 2009 Z4 sDrive 35i, or MY 2009 X6 xDrive 35i equipped with the N54 engine exhibits the symptoms listed above, it should be replaced with the improved part (P/N 13 51 7 594 943). For HDP diagnostic and replacement instructions, refer to SI B12 55 06 and REP 13 51 017.

IMPORTANT:
Since Monday, October 19, 2009, a Part Replacement Authorization has been required (via submission of a TC Case) for replacement of the N54 HDP Pump on E82, E88, E89, E90, E60, E61 and E71 vehicles. For details related to the "N54 Fuel System TC Action", refer to SI B13 08 09.








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