964RS a écrit :Je pense qu'il ne faut pas généraliser. 2voitures avec des problèmes sur le forum, pour combien d'auto équipée?
Je connais plusieurs personnes qui ont largement dépassé les 100.000 avec ce moteur sans aucun problème.
Sans doute un peu d'accord, mais je ne suis vraiement pas tout seul :
Source Wiki US :
In at least the US market, the N54 engine has been characterized by a very large number of High Pressure Fuel Pump (HPFP) failures, leading to many BMW NA vehicle Lemon Law "buy backs" and reduced customer goodwill. On some engines the HPFP was replaced four times within the first few years of service. BMW has instituted a 10-year, 120,000 mile warranty on the part, but only for 2007 and 2008 model year vehicles with the N54 engine. Other model years, to include 2009 models, continue to report HPFP failures.[4] As of late 2009, the low pressure fuel sensor has become suspected of causing some premature failures of the HPFP by engine tuners such as AMS and CP-E.
Source courrier BMW aux USA :
SUBJECT
N54 - Special Limited High Pressure Pump (HDP) Emissions Warranty of 10 Years/120,000 Miles
MODEL
MY 2007/2008 E60, E61 – 535i/535xi with N54 engine
MY 2007/2008 E90, E92, E93 – 335i/335xi with N54 engine
MY 2008 E82, E88 – 135is 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 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 ) 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 3 Series vehicle (335i/xi
Sedan/Coupe/Convertible), MY 2007/2008 5 Series vehicle (535i/xi Sedan/Sports Wagon), or MY 2008 1
Series vehicle (135is Coupe/Convertible) with the N54 engine exhibits the symptoms listed above, it should be
replaced with the improved part (P/N 13 51 7 592 881). For HDP diagnostic and replacing instructions, refer to
SI B12 55 06 and RA 13 51 017, found in BMW TIS.
PARTS INFORMATION
EMISSIONS WARRANTY INFORMATION
As a commitment to our customers and to demonstrate our confidence in our product, BMW will extend the
emissions warranty of the High Pressure Fuel Pump (HDP) from 4 years or 50,000 miles to 10 years or 120,000
miles, whichever comes first.
The emissions warranty extension for this component applies to the above-listed models only, and is
transferable to any subsequent purchaser of these models.
This extended emissions warranty is applicable to vehicles registered in all 50 states.
Warranty coverage for all other parts is not affected.
BMW will inform all affected owners of the above-listed models of their extended High Pressure Fuel Pump
emissions warranty. A sample letter is attached.
SI B 13 03 09
Fuel Systems
April 2009
Technical Service
Part Number Description Quantity
13 51 7 592 881 HDP High Pressure Fuel Pump 1
11 61 7 547 242 Profile manifold gasket kit 1
13 53 7 582 770 ASA bolt M8x17.5 1
The following Emissions Warranty Information should be used if the High Pressure Fuel Pump (HDP)
replacement becomes necessary, as outlined above:
Note: The following explanations spell out the correct use of the work times.
ATTACHMENTS
view PDF attachment B130309Customer_Letter.
Defect Code 13 51 90 12 00 Replace HDP pump. Includes deleting any
HDP fault codes & adaptation values stored in the
Engine Control Module (DME)
Main Work
Labor Operation: Labor Allowance:
00 58 118 25 FRU – E60, E61
20 FRU – E82, E88, E90, E92
22 FRU – E93
+Associated Work
Labor Operation: Labor Allowance:
00 58 687 24 FRU - E60
23 FRU – E61
18 FRU – E82, E88, E90, E92
20 FRU – E93
Main Work: Use this labor operation number when the only repair performed is the
listed warranty repair.
OR
+Associated
Work:
Use this labor operation number when other repairs or services are
performed along with the listed warranty repair.
Under no circumstances should both labor operation numbers be claimed.
Attempts to claim both times will result in an unnecessary delay in claim
processing and payment.
[ Copyright © 2009 BMW of North America, LLC ]
