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BMW 3-Series (E90 E92) Forum
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Has anyone contacted BMW regarding 29.2 and lag?
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09-05-2008, 01:36 PM | #1102 |
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I already gave my odds a few pages back. 1:50! There is absolutely nothing CONCRETE pointing in the direction of indicating that it will help, at this point. I think meyergru asked his guy at the shop, but he said he didn't know yet.
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09-05-2008, 01:43 PM | #1103 |
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Somewhere there was a post that some guy mentioned that some other guy told him that V31 was the means by which BMW chose to deal with the lag issue. So basically, it is all conjecture, hearsay and speculation.
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09-05-2008, 02:31 PM | #1104 |
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Not sure if this helps anyone, but I'm a pre-29.2'er with an auto. I'm in northern NJ at least 1 wknd a month, PA 2 wknds a month, and DC/MD at least 1 wknd a month. If anyone needs the car to test/compare it, let me know. I'll have to take out the Helix though, so need some notice before we do it (or can take it out before testing, I don't care).
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09-05-2008, 02:43 PM | #1105 |
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There is no easy way to "summarize" this 50 page thread my friend......
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09-05-2008, 02:50 PM | #1106 |
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Yes, that was what a technician told me early this week, but I wouldnt trust a bmw guy as far as I could throw him after all the trouble we have had..
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09-06-2008, 10:05 PM | #1107 |
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FYI - from another thread - thanks to stressdoc
"stressdoc Moderator Drives: 335 E90 ZSP+ Join Date: Jun 2005 Location: MO Read the SIB. It is clear as can be what 29.2 is designed to do. A software fix for a hardware problem. One can only hope that BMW prescribed this shift from the hardware fix (replace wastegate actuators) to a DME reprogram (Progman 29.2) that "fixes" the rattle by keeping the wastegate open under the conditions where it would rattle against the turbo housing (because of the vibrating stresses) is because the available hardware fix was not a good one, and the software fix is just a temporary bandaid until they engineer a proper hardware fix. If they did this to save $, just postponing the inevitable repairs until the car might no longer be under warranty, lord help them. There are going to be some very angry owners who may not be placated with anything short of replacement of the turbos with the new revised version. And a proper tune again. http://www.bmwtis.com/tsb/bulletins/...p/B111307g.htm __________________ " |
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09-07-2008, 02:54 AM | #1108 | |
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Quote:
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09-07-2008, 08:25 AM | #1109 |
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09-07-2008, 08:48 AM | #1110 | |
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Anyone know what wastegates cost by chance? Just curious. |
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09-08-2008, 04:21 AM | #1111 |
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Just like to inform you of an incident yesterday morning.
I was driving my car for about 5 mins when all of a sudden I hear 3 loud bangs comming from my car! I pull over, open the door and immediately noticed gray smoke comming from the car, It smelled like burnt oil. So Im checking the cars outside but I only notce one thing odd. The two tailpipes where jet black and an increadible heat was steaming out of both pipes. I've had nothing but trouble since I bought this pice of junk and now I've had it! Goodbye BMW Hello Audi! ps. Would'nt surprise me one bit if this is related to 29.2! Crappy fuel consumption, poor performance, poor reliability..... |
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09-08-2008, 06:45 AM | #1112 | |
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//Marcus
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09-08-2008, 08:20 AM | #1113 | |
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I think its the turbos, heck, who knows.. |
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09-08-2008, 08:54 AM | #1115 |
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This is pointless trash talk. You will run into disgruntled Audi owners at BMW dealers too. Statistics are statistics: overall the 335 is a very reliable car, slightly more so than the Audi A4.
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09-08-2008, 08:59 AM | #1117 |
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There is no logical reason to conclude that 29.2 would affect gas mileage. Unless drivers are responding to the reduction of power response at low revs by a heavier foot -- and maybe this can result in fouling spark plugs, leading to inefficient burn, and perhaps even backfiring as in Pavel's case.
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09-08-2008, 09:08 AM | #1118 |
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Left my car at the dealership this morning - first time back since s/w download on 8/26. Can't wait to see what kind of b/s they are going to come up with to explain the turbo lag. Or will it be one of those - sir there is nothing wrong with this car - performs as advertised.
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09-08-2008, 09:16 AM | #1119 |
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Explain the facts to your SA as we know them, don't mention any blog or you are likely to be dismissed as having Web hysteria. I would just note that you are aware that the wastegate is open at low rpms and that the car drives differently as a consequence. Not a big difference, but noticeable, and it is something that is important to you, so you expect them to research this and get to the bottom of it with BMW NA.
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09-08-2008, 09:41 AM | #1120 | |
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09-08-2008, 09:47 AM | #1121 |
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Your point is well taken.
However, when it comes to getting to the bottom of it, given the fact that we all here know what the problem is (s/w) and given the history of this forum members' dealings with dealerships, I really don't know what they can possibly get to the bottom of ? There is nothing magical that they will able to do (short of downgrading s/w) except to piss me off w/some stupid response. The best case scenario is I get to wait for 50-60 days to see the "cannot talk to" regional tech rep and then wait some more and more ... and all this while I continue to fight frustrations of every day's driving and continue to pay for the car I now hate. |
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09-08-2008, 10:32 AM | #1122 |
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My Lag Has Been Fixed
I mentioned this in another post related to my fuel pump/starting issues, but I thought I might post here in case it is of any help to everyone.
Before the software update (done while installing the ipod kit), my car's power kicked in at about 1500rpm. After, it was more like 3500rpm. The dealer said they didn't know anything about it of course. But recently when I was there for my fuel pump issue, I asked my SA if he had heard anything new on the lag problem. He said there may be a patch now to address it. Now I dont know what exactly this software is that they changed, but he did give me the release numbers. He said it was part of the ECU program but that's all he really knew. After driving the car I was so excited I never even thought to go back and speak to the tech directly. I can tell you this though, my car is now back to normal. No kidding. Maybe if you mention this fix to your SA they can update the same program they did for me. Hope this helps. Old SW version E89 x 08 03 530 New SW versiom E89 x 08 03 540 |
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