335i Fuel pump question

RetroGamerJP · 03-28-2007, 08:57 PM

For all of you that have had your fuel pump replaced I have a question... actually two questions.

1. Does the 335i have more than one pump?

2. If so, which is the one that is failing?

Many thanks,
John

RiXst3r · 03-28-2007, 09:09 PM

its the HPI (high pressure injection system) fuel pump at the engine, not the the fuel pump in the gas tank

RetroGamerJP · 03-28-2007, 09:15 PM

thank you

BzzzBom · 03-28-2007, 10:44 PM

Do the new cars (e.g., 2/07 build) have an improved pump or are they replacing with the same one?

lkraven · 03-28-2007, 10:58 PM

Supposedly the defective fuel pumps were installed in vehicles produced between 6/6 and 9/6, and vehicles produced afterwards do not have the same problem. This is pure hearsay on my part, though, as I do not have the source of that statement-- one thing that is consistent is that the pumps fail under wide-open-throttle, and if they're going to fail, they fail early in their lives (< 6000 miles) Once you have 10k plus on them, not many reports of failures.

thealbert · 04-06-2007, 11:07 AM

I'm a 10/06 production car. Looks like my fuel pump failed as I got exactly the same symptoms as people who have described fuel pump failures. Car's going into the dealer on tuesday, will keep you updated on the diagnosis.

sstarch1 · 04-06-2007, 11:29 AM

I have a car in the production dates said above, and had a fule pump replaced on the 10th of February, and i had that fuel pump go bad about 2 weeks ago.

Go figure.

thealbert · 04-07-2007, 06:00 AM

sstarch1: You had your fuel pump replaced and then it broke again??? Or was it just a software update that they did only?

RiXst3r · 04-07-2007, 10:28 AM

Quote:

Originally Posted by sstarch1

I have a car in the production dates said above, and had a fule pump replaced on the 10th of February, and i had that fuel pump go bad about 2 weeks ago.

Go figure.

they either stuck on a used one, or never really replaced it... just did some band-aid fixes...

any way to check the date of the second pump?

how are you getting pumps replaced so quickly? Mine has been down for 11 days now...

03-28-2007, 08:57 PM	#1
RetroGamerJP Lieutenant 57 Rep 400 Posts Drives: 2023 M3 Competition Join Date: Sep 2006 Location: Atlanta GA iTrader: (3)	335i Fuel pump question For all of you that have had your fuel pump replaced I have a question... actually two questions. 1. Does the 335i have more than one pump? 2. If so, which is the one that is failing? Many thanks, John
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03-28-2007, 09:09 PM	#2
RiXst3r 285 Rep 6,510 Posts Drives: M235i Join Date: Sep 2006 Location: Ohio iTrader: (14)	its the HPI (high pressure injection system) fuel pump at the engine, not the the fuel pump in the gas tank
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03-28-2007, 09:15 PM	#3
RetroGamerJP Lieutenant 57 Rep 400 Posts Drives: 2023 M3 Competition Join Date: Sep 2006 Location: Atlanta GA iTrader: (3)	thank you
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03-28-2007, 10:44 PM	#4
BzzzBom Major 96 Rep 1,216 Posts Drives: 05 R53 MINI / 09 335i Coupe Join Date: Jul 2006 Location: Los Angeles iTrader: (0)	Do the new cars (e.g., 2/07 build) have an improved pump or are they replacing with the same one?
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03-28-2007, 10:58 PM	#5
lkraven Lieutenant 13 Rep 429 Posts Drives: E92 335i Join Date: Mar 2007 Location: SoCal iTrader: (1)	Supposedly the defective fuel pumps were installed in vehicles produced between 6/6 and 9/6, and vehicles produced afterwards do not have the same problem. This is pure hearsay on my part, though, as I do not have the source of that statement-- one thing that is consistent is that the pumps fail under wide-open-throttle, and if they're going to fail, they fail early in their lives (< 6000 miles) Once you have 10k plus on them, not many reports of failures.
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04-06-2007, 11:07 AM	#6
thealbert Lieutenant 33 Rep 420 Posts Drives: G20 M340i xDrive Join Date: Feb 2007 Location: Home Sweet Home iTrader: (0)	I'm a 10/06 production car. Looks like my fuel pump failed as I got exactly the same symptoms as people who have described fuel pump failures. Car's going into the dealer on tuesday, will keep you updated on the diagnosis.
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04-06-2007, 11:29 AM	#7
sstarch1 From Russia With Boost 37 Rep 1,076 Posts Drives: E92 335i - Vroom Join Date: Jul 2006 Location: Alexandria, VA iTrader: (0) Garage List 2007 335i [0.00]	I have a car in the production dates said above, and had a fule pump replaced on the 10th of February, and i had that fuel pump go bad about 2 weeks ago. Go figure. __________________ 2007 BMW 335i - Delivered 9/8/06 Sparkling Grpahite with Black Leather/Aluminum Trim Premium Package, Sports Package, Comfort Access.
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04-07-2007, 06:00 AM	#8
thealbert Lieutenant 33 Rep 420 Posts Drives: G20 M340i xDrive Join Date: Feb 2007 Location: Home Sweet Home iTrader: (0)	sstarch1: You had your fuel pump replaced and then it broke again??? Or was it just a software update that they did only?
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