BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

Post Reply
 
Thread Tools Search this Thread
      09-23-2007, 09:22 PM   #23
inTgr8r
Lieutenant General
inTgr8r's Avatar
Canada
1399
Rep
11,113
Posts

Drives: Porsche Cayman
Join Date: Mar 2006
Location: Toronto

iTrader: (10)

Quote:
Originally Posted by midlife View Post
...
.
my guess is that:
1/ BMW still has the older siemens pumps in stock
maybe they are still using these siemens pumps as replacement pumps
2/ I AM HOPING that all new cars with N54 motors have the new BOSH pump.

anyone out there no for sure of any of my speculations?
They would not keep them in the pipeline...
they'd be spoon feeding them to Siemens. (if they were at fault)
__________________
Appreciate 0
      09-24-2007, 09:45 PM   #24
midlife
ocasionally in crisis
midlife's Avatar
43
Rep
2,358
Posts

Drives: '08 335i cabrio
Join Date: Jun 2007
Location: ..........

iTrader: (0)

Quote:
Originally Posted by inTgr8r View Post
They would not keep them in the pipeline...
they'd be spoon feeding them to Siemens. (if they were at fault)
that definitely would b the right thing to do.
my fingers are crossed as to what BMW actually does. :iono:
Appreciate 0
      09-25-2007, 01:08 AM   #25
ichiban
Colonel
ichiban's Avatar
64
Rep
2,012
Posts

Drives: 08 135i
Join Date: Sep 2007
Location: Bay Area, CA

iTrader: (2)

are the HPFP an in tank unit or out?
Appreciate 0
      09-25-2007, 02:45 AM   #26
321
Stay a while and listen...
12
Rep
376
Posts

Drives: vr4
Join Date: Aug 2007
Location: slo, ca

iTrader: (0)

Quote:
Originally Posted by midlife View Post
that definitely would b the right thing to do.
my fingers are crossed as to what BMW actually does. :iono:
I won't lose any sleep over it.

Quote:
Originally Posted by ichiban
are the HPFP an in tank unit or out?
IIRC it is located near the fuel rail in the engine bay. It is more efficient that way.
Appreciate 0
      10-06-2007, 12:22 AM   #27
bimmertech
Private First Class
3
Rep
131
Posts

Drives:
Join Date: Oct 2007

iTrader: (0)

as of september bmw has released a new updated part number for high pressure fuel pumps.

a few cars at our dealer have had pumps replaced twice. the replaced pumps were no better than the original pumps. hopefully the new part number wil solve the pump issue.

the hpfp is located underneath the intake manifold and is driven by the vacuum pump which is driven by the main timing chain.

as of now the only vehicles in bmw's lineup that use direct injection and therefore a high pressure pump are the n54 biturbo engine and the n73 V12 found in the 760Li/i.

hope that helps.
Appreciate 0
      10-06-2007, 02:30 AM   #28
ichiban
Colonel
ichiban's Avatar
64
Rep
2,012
Posts

Drives: 08 135i
Join Date: Sep 2007
Location: Bay Area, CA

iTrader: (2)

Quote:
Originally Posted by zba857 View Post
IIRC it is located near the fuel rail in the engine bay. It is more efficient that way.
interesting. any diagrams? or pictures?
Appreciate 0
      10-06-2007, 03:03 AM   #29
kurichan
Mr. Happy
6
Rep
479
Posts

Drives:
Join Date: Aug 2007

iTrader: (0)

Quote:
Originally Posted by bimmertech View Post
as of september bmw has released a new updated part number for high pressure fuel pumps.

a few cars at our dealer have had pumps replaced twice. the replaced pumps were no better than the original pumps. hopefully the new part number wil solve the pump issue.
my dealer, sounding like he knew what he was talking about, said it was not the pump per se that was the problem, rather, the seals weren't holding up. any truth to that?
Appreciate 0
      10-06-2007, 12:27 PM   #30
321
Stay a while and listen...
12
Rep
376
Posts

Drives: vr4
Join Date: Aug 2007
Location: slo, ca

iTrader: (0)

Welcome bimmertech!!

Quote:
Originally Posted by bimmertech View Post
high pressure pump are the n54 biturbo engine and the n73 V12 found in the 760Li/i.

hope that helps.
Is their any cross compatibility between any of their fuel system components? Is the 760 coming in for HPFP failures?
Thanks and welcome!

Quote:
Originally Posted by ichiban
interesting. any diagrams? or pictures?


edit: Blue=fuel Red=oil fill
Quote:
Originally Posted by kurichan
my dealer, sounding like he knew what he was talking about, said it was not the pump per se that was the problem, rather, the seals weren't holding up. any truth to that?
That makes the most sense.
Appreciate 0
      10-06-2007, 03:09 PM   #31
ichiban
Colonel
ichiban's Avatar
64
Rep
2,012
Posts

Drives: 08 135i
Join Date: Sep 2007
Location: Bay Area, CA

iTrader: (2)

swt, thx for the diagrams.
Appreciate 0
      10-07-2007, 12:14 AM   #32
bimmertech
Private First Class
3
Rep
131
Posts

Drives:
Join Date: Oct 2007

iTrader: (0)

the updated bulletin says the internal seals of the new pump have been improved. and there is no cross compatiblity of the fuel pumps in the n54 and the n73. the systems and the way they work are completely different.
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 05:07 AM.




1addicts
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST