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
      07-24-2010, 11:33 PM   #45
KingOfJericho
Major General
KingOfJericho's Avatar
United_States
995
Rep
6,277
Posts

Drives: Yes
Join Date: Aug 2007
Location: CT

iTrader: (1)

Garage List
2010 135i Coupe  [2.63]
I consider myself very active on here and I have yet to see one thread about a single N55 HPFP failure. I've seen several threads with TrackRat claiming to have seen several threads but not "bookmarking" them (wouldn't a simple search find them?) but nothing of any substance.
__________________
The views and opinions expressed in this post are those of the author and do not necessarily reflect the official policy or position of Bimmerpost.

2018 Jeep Grand Cherokee High Altitude Hemi | 2010 S4 Sold | 2010 BMW 135i Retired | 2006 Lotus Exige Sold
Appreciate 0
      07-25-2010, 01:05 AM   #46
RPM90
Major General
763
Rep
7,021
Posts

Drives: 340i M-sport AT
Join Date: Mar 2006
Location: Chicago

iTrader: (1)

Quote:
Originally Posted by JB135MDCT View Post
No Problems yet with N55.

In regards to this pointless "DCT is and automatic" argument, I say the 6MTers are in for a surprise when some old dude or some 17 year old chick who never drove a 6MT can now blow you guys away. It's a rude awakening. Maybe 6MTers should go back to manual choked carburetors, or anything that's controlled by a computer, how about mechanical boost control. Who needs an O2 sensor when you can use a manual knob.
For the record, if the M1 comes with only 6MT option then I shall miss the DCT. I'll be even more sad when a 135i w/DCT blows an M1 away. Time will tell.
What does a manual boost control compared to the O2 even have in common with actual boost pressure? Nothing.
The O2 doesn't control boost pressure, FYI.

Talk about being "blown" away.

Last edited by RPM90; 07-25-2010 at 01:14 AM..
Appreciate 0
      07-27-2010, 11:00 AM   #47
babyboss
Lieutenant
babyboss's Avatar
South Africa
63
Rep
540
Posts

Drives: 640d Msport
Join Date: Jun 2010
Location: centurion

iTrader: (0)

Garage List
2012 640d  [0.00]
done 4000km & (with octane boosters) & so far all ok <>
Appreciate 0
      07-27-2010, 01:05 PM   #48
shotgunlab
New Member
1
Rep
12
Posts

Drives: 2011 135i coupe DCT
Join Date: Jul 2010
Location: so cal

iTrader: (0)

2011 135 coupe with DCT. just over 3k mi. all is good. I freaking love this car!
Appreciate 0
      07-27-2010, 08:38 PM   #49
JB135MDCT
I'm just a cook
JB135MDCT's Avatar
United_States
19
Rep
981
Posts

Drives: 2011 135i DCT
Join Date: May 2010
Location: MD

iTrader: (0)

Quote:
Originally Posted by RPM90 View Post
What does a manual boost control compared to the O2 even have in common with actual boost pressure? Nothing.
The O2 doesn't control boost pressure, FYI.

Talk about being "blown" away.
Response deleted, I'll try again. I was stating the "automatic" control of Boost and Fuel Ratio. Do you want to control them manually like your 6MT?

Hypocrisy?
Appreciate 0
      07-27-2010, 09:31 PM   #50
RPM90
Major General
763
Rep
7,021
Posts

Drives: 340i M-sport AT
Join Date: Mar 2006
Location: Chicago

iTrader: (1)

Quote:
Originally Posted by JB135MDCT View Post
Response deleted, I'll try again. I was stating the "automatic" control of Boost and Fuel Ratio. Do you want to control them manually like your 6MT?

Hypocrisy?
I'd like to answer that, but please explain what hypocrisy you are referring to.

In the "older" days of turbo's many of us did use MBC's, and yes, tuning was harder. I love modern boost control, just like I like fuel injection, and electronic timing, etc...
ABS, I'm still not completely there yet with that one.
Appreciate 0
      07-27-2010, 10:48 PM   #51
JB135MDCT
I'm just a cook
JB135MDCT's Avatar
United_States
19
Rep
981
Posts

Drives: 2011 135i DCT
Join Date: May 2010
Location: MD

iTrader: (0)

Quote:
Originally Posted by RPM90 View Post
I'd like to answer that, but please explain what hypocrisy you are referring to.

In the "older" days of turbo's many of us did use MBC's, and yes, tuning was harder. I love modern boost control, just like I like fuel injection, and electronic timing, etc...
ABS, I'm still not completely there yet with that one.
Hypocrisy is for a purest who insult MTers who now drive DCTs, because its an automatic, yet the purest have all sorts of automatic features in their car.
Appreciate 0
      07-28-2010, 01:27 AM   #52
jeremyc74
Banned
United_States
65
Rep
5,972
Posts

Drives: '08 135i Montego/Terra
Join Date: Feb 2008
Location: Evansville, IN

iTrader: (0)

Quote:
Originally Posted by JB135MDCT View Post
Hypocrisy is for a purest who insult MTers who now drive DCTs, because its an automatic, yet the purest have all sorts of automatic features in their car.

You don't make any sense at all.
Appreciate 0
      07-28-2010, 03:40 AM   #53
BMW269
Brigadier General
No_Country
287
Rep
3,897
Posts

Drives: BMW
Join Date: Jul 2009
Location: Germany

iTrader: (0)

I hope there will be no HPFP failures. If so, then this can explain why BMW went from N54 to N55. And if the M1 engine S55 is based on N55, then the M1 will maybe also not get HPFP, what is WIN for a "track" M car.
Appreciate 0
      07-28-2010, 08:01 AM   #54
JB135MDCT
I'm just a cook
JB135MDCT's Avatar
United_States
19
Rep
981
Posts

Drives: 2011 135i DCT
Join Date: May 2010
Location: MD

iTrader: (0)

Quote:
Originally Posted by jeremyc74 View Post
You don't make any sense at all.
You don't know what hypocrisy means or am I abusing the term?

Perhaps dichotomy is a better choice.
Appreciate 0
      07-30-2010, 11:20 PM   #55
Evice
Major
Evice's Avatar
43
Rep
1,433
Posts

Drives: BSM 128i M-sport and '98 M3
Join Date: Apr 2009
Location: Somewhere here

iTrader: (1)

I am sorry but why jeremyc74 is banned? I do not necessarily always agree with him, but I feel it is not right to do so. I hope I am seeing it wrong.
__________________
'09 BSM 128i DD '98 E36 M3 - BMWCR IS #718(sold)
'01 E46 330i - Spec E46 #718 (on-build)
BMWCCA Instructor & 2013 BMWCR IS National Champ
2014 BMWCR IS 1st Loser Champ (due to fantastic BMWCR procedures.)
My Track Videos
Appreciate 0
      07-30-2010, 11:49 PM   #56
RPM90
Major General
763
Rep
7,021
Posts

Drives: 340i M-sport AT
Join Date: Mar 2006
Location: Chicago

iTrader: (1)

Quote:
Originally Posted by Evice View Post
I am sorry but why jeremyc74 is banned? I do not necessarily always agree with him, but I feel it is not right to do so. I hope I am seeing it wrong.
He is?
If so, why?

Also, bump, for any info showing an N55 HPFP failure.

Anyone? Anyone?
Appreciate 0
      07-31-2010, 12:01 AM   #57
Evice
Major
Evice's Avatar
43
Rep
1,433
Posts

Drives: BSM 128i M-sport and '98 M3
Join Date: Apr 2009
Location: Somewhere here

iTrader: (1)

I see his rank as "banned". and I never heard a N55 fail yet.
__________________
'09 BSM 128i DD '98 E36 M3 - BMWCR IS #718(sold)
'01 E46 330i - Spec E46 #718 (on-build)
BMWCCA Instructor & 2013 BMWCR IS National Champ
2014 BMWCR IS 1st Loser Champ (due to fantastic BMWCR procedures.)
My Track Videos
Appreciate 0
      07-31-2010, 07:12 AM   #58
JB135MDCT
I'm just a cook
JB135MDCT's Avatar
United_States
19
Rep
981
Posts

Drives: 2011 135i DCT
Join Date: May 2010
Location: MD

iTrader: (0)

Quote:
Originally Posted by Evice View Post
I see his rank as "banned". and I never heard a N55 fail yet.
I might have tweaked his nerve about DCT?
Appreciate 0
      07-31-2010, 10:56 AM   #59
1SerieStud
Brigadier General
1SerieStud's Avatar
145
Rep
3,940
Posts

Drives: '11 VO 1M (498 of 740)
Join Date: Jul 2010
Location: Jacksonville, FL

iTrader: (11)

Quote:
Originally Posted by maxnix View Post
Yep, the reason most MT guys get the DCT is they realize it is quicker and better shifting than they could ever be. It was a hard pill to swallow, but after shifting with the paddles, most realize the DCT is far better than the driver thought he was before DCT.
Never manual all the way for me! No hesitations off the line either!

By the way, no long cranks or hpfp failures.
Appreciate 0
      07-31-2010, 11:24 AM   #60
Bavarian MW
lurker
21
Rep
102
Posts

Drives: 16 s1000r 17 320i 18 340i
Join Date: Aug 2008
Location: Central NJ

iTrader: (0)

I have been through 4 hpfp replacements on my N54, the lease is due back now.

I have an N55 1 Series on order, so I have been digging in deep at my BMW Center. No hpfp's have been done for an N55 as of yet. Good news for sure, if this holds true! --MW


edit: yeah, its a 6sp manual. DCT is cool for sure, but good clutchwork is cooler!
Appreciate 0
      07-31-2010, 02:02 PM   #61
gavolant
Second Lieutenant
gavolant's Avatar
16
Rep
212
Posts

Drives: 2011 AW 135i M-Sport
Join Date: Jul 2010
Location: Falls Church, VA

iTrader: (0)

I'd hate to play devils advocate here ( esp since i just ordered a 2011 135) but considering it has been confirmed the N55 uses the same hpfp, what if we aren't seeing failures because of the time of year. In other words, most people who have the N55 engine haven't had their car through the winter months, and its my understand that this is when the majority of the long cranks seem to occur. Just a thought. Anyone in colder climates have any experience with the N55 hpfp?
Appreciate 0
      07-31-2010, 03:51 PM   #62
MarkR171
Lieutenant Colonel
MarkR171's Avatar
53
Rep
1,531
Posts

Drives: SLK55 AMG
Join Date: Dec 2009
Location: Honolulu, HI

iTrader: (0)

Garage List
I doubt cold climates is the cause. I know of a 335i and 135i with N54s that have had HPFPs replaced in Hawaii. No cold climate here.
__________________
2007 SLK55 AMG - Black on Gray/Black - AMG 030 Performance Package

2011 135i - Traded
///M-Sport - Dual Clutch - Harman Kardon - Bluetooth - iPod - Shadowline Kidney Grill - 225/255 Star Specs - Hotchkis Front Sway
Appreciate 0
      07-31-2010, 07:16 PM   #63
schmeah
Private First Class
9
Rep
116
Posts

Drives: 2011 135i
Join Date: Mar 2010
Location: NJ

iTrader: (0)

Quote:
Originally Posted by TrackRat View Post
Useful reading on efforts to determine the root cause of the HPFP failure issues with N54/55 engines.

http://www.surveymethods.com/preview...D0DB928284D794
Yawn ... you're getting very tiresome. Look at the model year data from your own link. See any 2011s? No you don't. That means no N55s yet. What's the matter with you anyway?
Appreciate 0
      07-31-2010, 07:17 PM   #64
FactorX81
First Lieutenant
United_States
28
Rep
359
Posts

Drives: 2010 135i, 2014 Ford Escape Ti
Join Date: Nov 2009
Location: NJ

iTrader: (0)

Does any one know if it is the N55 or the new 943/933 pump and the pump priming software or just some difference between the N54 and N55?
Appreciate 0
      07-31-2010, 09:30 PM   #65
MarkR171
Lieutenant Colonel
MarkR171's Avatar
53
Rep
1,531
Posts

Drives: SLK55 AMG
Join Date: Dec 2009
Location: Honolulu, HI

iTrader: (0)

Garage List
Just because the N55 uses the same unit, doesn't mean it's the unit itself that is at fault. It could be an issue with the N54 being too hard on the HPFP unit.

If BMW knew the part itself were faulty, why would they spend millions on developing a new engine only to use the same faulty part. Any reasonable person would understand it's not a good idea if that were the case.

Note 35% of long cranks and 25% of replacements occurred within 5000 miles with another 35% long cranks and 25% more of replacements within 10,000 miles. Many people with N55s have surpassed that and still no reports.

Also based on that survey, only 35% of survey takers actually had to replace their fuel pumps. 76% of those only replaced it once. I would also be willing to bet that there are more people who had no failure that never bothered to fill out the survey because they weren't affected.
__________________
2007 SLK55 AMG - Black on Gray/Black - AMG 030 Performance Package

2011 135i - Traded
///M-Sport - Dual Clutch - Harman Kardon - Bluetooth - iPod - Shadowline Kidney Grill - 225/255 Star Specs - Hotchkis Front Sway

Last edited by MarkR171; 07-31-2010 at 09:43 PM..
Appreciate 0
      07-31-2010, 09:44 PM   #66
schmeah
Private First Class
9
Rep
116
Posts

Drives: 2011 135i
Join Date: Mar 2010
Location: NJ

iTrader: (0)

Quote:
Originally Posted by TrackRat View Post
Please rerain from the inappropriate comments. You are free to believe whatever you desire. The statistical info. is to show the effort to identify the root cause of the HPFP failures on the N54 engine. The N55 engine uses the same HPFP as the N54 engines and they have failed on the N55 engines. Any reasonable person would understand the correlation.
For the last time... you've said in about a half a dozen threads that the HPFP has failed on the N55, yet you've never once pointed to any link confirming a single failure. And don't post that crap about your "not booking marking every blah blah blah." Then when you are called out on your blatant BS, you fade away for a little while.

So my comments are not inappropriate and I won't refrain from pointing out your BS until there are documented failures on the N55. I won't be surprised if one eventually fails (hopefully not mine). Statistically it's bound to happen. But cut the crap until it actually does. Please don't slink away again. Let's hear your reply with some validation of an N55 failure.
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 05:57 PM.




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