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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Has anyone contacted BMW regarding 29.2 and lag?



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      11-17-2008, 01:56 PM   #2773
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Quote:
Originally Posted by stressdoc View Post
I clearly have the open wastegate farty exhaust sound, and the rattle on deceleration.
I have the same exact thing as you can hear my car several blocks away but I am on v30.0.2
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      11-17-2008, 04:04 PM   #2774
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Quote:
Originally Posted by ezatnova View Post
...
You know, it still hurts my head that I swear BMW could have just taken friggin blue LOK-TITE and fixed all of this mess with $0.15 in material and $20 in labor by simply painting the rod threads with it and re-tightening the nut on the rod.
I think there is more to the problem than the adjustment on the actuator rod loosening.
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      11-17-2008, 09:02 PM   #2775
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I think I'm one of the "original 6".

My 24mo lease is up and I'm returning my car at 8am tomorrow. I was going to order a 2009 335i...but, screw 'em. Yesterday, I bought a Jeep for the winter.

IMHO, BMW deserves to lose a lot of customers over the way they have handled this issue...they've given me every reason to believe they're a bunch of douchebags. I want to say some other foul things, but I'm a grown-up and should know better
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      11-17-2008, 09:33 PM   #2776
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He didn't really say JEEP did he?
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      11-17-2008, 09:37 PM   #2777
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Originally Posted by Erregend View Post
He didn't really say JEEP did he?
I have had many Porsches and now a 335i and through it all I have always had a jeep. I have one with 150k and another with 130k and combined I've spent maybe 5K in repairs. And Chrysler has never tried to screw me like I see BMW doing to it's customers.

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      11-17-2008, 10:39 PM   #2778
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Yea he said Jeep and more power to him!!!! I would rather say Hundai than BMW now. Heck I would rather say FORD than BMW now...
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      11-18-2008, 12:16 AM   #2779
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You guys see the breaking news from Roundel thread?
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      11-18-2008, 01:06 AM   #2780
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Quote:
Originally Posted by stressdoc View Post
You guys see the breaking news from Roundel thread?
NO! what is it?
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      11-18-2008, 01:24 AM   #2781
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http://www.e90post.com/forums/showth...hlight=ROUNDEL
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      11-18-2008, 04:49 AM   #2782
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Quote:
Originally Posted by imoksoami View Post
I already told ya when I got my car back from BMW R&D department. Good to see, though, that BMW now admits to it in public and also in the U.S. where they once basically said that "everything works fine".

I think we've come a long way to make BMW believe that there is a problem. Though it is flattering to be one of "the most sensitive BMW drivers", IMHO, there are still three points left:

1. It took WAY too long for BMW to acknowledge the Lag(tm) and devise a fix. Sorry, Tyler.
2. We have yet to see how BMW handles wastegate rattle for pre-09/07 cars, should it occur.
3. This seems to be no good news for "the most sensitive" MSD81 owners. Sorry, Pavel.
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      11-18-2008, 05:16 AM   #2783
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Originally Posted by meyergru View Post
3. This seems to be no good news for "the most sensitive" MSD81 owners. Sorry, Pavel.
No worries meyergru, Enjoying life with a cool new 330i coupe!
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      11-18-2008, 08:27 AM   #2784
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The BMW statement seems to be the least they think they can get away with, also you need the car to throw a code to get the software. They probably hope they can solve the biggest problems and quieten down the most vociferous voices. Possibly they are right but a lot will depend on whether the worst affected cars perform as they did originally. If your wastgates rattle or leak they'll say you need 29.2.....rather than fix the rattles.

With my July 08 build I can't help feeling there's something not quite right, especially with the difference in responsiveness between a cold and warm engine. Would 150ms make a difference to me? I suspect it would, one and a half tenths of second will make a difference but the time lapse between pressing the pedal and power ramping up is more like 500ms. BMW's statement is just the tip of the iceberg.
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      11-18-2008, 08:51 AM   #2785
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Man...you guys beat me to it (with Ezmaass's post...what is it with all these "ezxxxxx" guys being on the ball!? )
Anyway, I was just going to make a post releasing the hounds on this news from Satch. I wanted to hear it from his lips that it was ok to spread the word given that it will be his article in the next Roundel.


Anyway, happy days, and lets keep those fingers and toes crossed that this is a real and good fix, not some BS halfass fix.
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      11-18-2008, 11:05 AM   #2786
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Arent we all sensitive? Thats the reason we bought the car. IF we werent sensitive then we wouldnt bought bimmers but VW Volvos Acuras Hundaj Skoda Opel Toyota SAAB KIA Ford Ch rysler
Goggomobil Holden or what f**k shit excists.
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      11-18-2008, 11:09 AM   #2787
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Is 150 ms 1˝ second? I don´t think so. A millisecond is one million of a second.
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      11-18-2008, 11:37 AM   #2788
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Quote:
Originally Posted by BMWagain View Post
Is 150 ms 1˝ second? I don´t think so. A millisecond is one million of a second.
No, one millisecond is 1/1000s, not 1/1000000s. So it's 0,15s. Though I think that applies to the now-current versions. v29.2 and some v30.x clearly had more than 0,5s delay.

BTW: Not all of us are sensitive... proof is here in the thread. Otherwise, BMW would not have thought they'd get away with that kind of "fix".
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      11-18-2008, 12:08 PM   #2789
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Quote:
Originally Posted by meyergru View Post
No, one millisecond is 1/1000s, not 1/1000000s. So it's 0,15s. Though I think that applies to the now-current versions. v29.2 and some v30.x clearly had more than 0,5s delay.

BTW: Not all of us are sensitive... proof is here in the thread. Otherwise, BMW would not have thought they'd get away with that kind of "fix".
I'm assuming the comment by BMWagain refers to my "one and a half tenths of (a) second". 150ms is 150/1000 of a second so I stand by my math.

My feeling is that our sensitivity to the delay is not linear. There's a delay caused by the electronics & adaptations in addition to the 150ms delay added by 29.2. It may just be that removing the 150ms delay suddenly makes the throttle response seem much more immediate. It could be that 350ms delay vs 500ms is an important difference for some.

But....is the implication that cars built after March 08 do not have the 150ms delay? I'll need some convincing after BMW were so tardy coming up with the current statement.
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      11-18-2008, 12:11 PM   #2790
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Here's a review I found on a google news search for "335i turbo lag" - this one from South Africa:

http://www.motoring.co.za/index.php?...811&fSetId=381

Quote:
Even at sea level there's just an instant of turbo lag if you boot it too hard, too soon – and then the power comes in with a bang you can feel in your neck muscles. Yes, it's exhilarating – the car has so much muscle on tap – but unless you have an educated right foot progress can be unpleasantly jerky, whether you use the paddle shifters to dictate gearshift points or leave the transmission to its own devices.
We're not the only sensitive ones!
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      11-18-2008, 01:39 PM   #2791
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"In an effort to address specific noise concerns, BMW updated the turbocharged engine software on 335i/xi and 535i/xi models built from June 2006 through March 2008. The updated software causes a small amount of increased “turbocharger lag” under certain circumstances and, while not substantial, the lag may be perceptible to the most sensitive BMW drivers. X6, 135i, and 3 Series/5 Series vehicles from March 2008 production onward are not affected. Release of the new software to restore the original turbocharger response is planned for January 2009, and it will be available for vehicles produced from September 2007 through March 2008 when they are brought to an authorized BMW center for a repair which requires a programming update. Clients with vehicles produced from June 2006 through September 2007 may request installation of the January 2009 software update. Clients who get this update should understand that there is a possibility of slightly increased engine noise levels under certain circumstances."

Hopeful. Hope it works.
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      11-18-2008, 01:52 PM   #2792
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Quote:
Originally Posted by bluescoupe View Post
"In an effort to address specific noise concerns, BMW updated the turbocharged engine software on 335i/xi and 535i/xi models built from June 2006 through March 2008. The updated software causes a small amount of increased “turbocharger lag” under certain circumstances and, while not substantial, the lag may be perceptible to the most sensitive BMW drivers. X6, 135i, and 3 Series/5 Series vehicles from March 2008 production onward are not affected. Release of the new software to restore the original turbocharger response is planned for January 2009, and it will be available for vehicles produced from September 2007 through March 2008 when they are brought to an authorized BMW center for a repair which requires a programming update. Clients with vehicles produced from June 2006 through September 2007 may request installation of the January 2009 software update. Clients who get this update should understand that there is a possibility of slightly increased engine noise levels under certain circumstances."

Hopeful. Hope it works.

Very nice. Thanks for the post. I'm hopeful as well.
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      11-18-2008, 03:35 PM   #2793
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Quote:
Originally Posted by meyergru View Post
No, one millisecond is 1/1000s, not 1/1000000s. . Though I think that applies to the now-current versions. v29.2 and some v30.x clearly had more than 0,5s delay.

BTW: Not all of us are sensitive... proof is here in the thread. Otherwise, BMW would not have thought they'd get away with that kind of "fix".

Don´t laugh your ass off. " So it's 0,15s "
Is it not 0,015 sec?
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      11-18-2008, 03:42 PM   #2794
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Quote:
Originally Posted by BMWagain View Post
Don´t laugh your ass off. " So it's 0,15s "
Is it not 0,015 sec?
No.

Its 0.15 (0,15).

150 ms = 0.150 seconds.
15 ms = 0.015 seconds

Recap: Milli is a prefix for 1/1000. Ex: 1 millimeter = 1/1000 meter.
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