Has anyone contacted BMW regarding 29.2 and lag?

RMX · 10-12-2010, 10:08 PM

Hey everyone, I just joined the forum and wanted share my experiences.

I just took in my 2010 E92 335i into the dealership for the infamous "long-crank & engine malfunction-reduced power" problem. After reading all the different posts about turbo lag and the car just not driving the same I was hesitant to take it in, but I had to b/c it became a safety issue (especially on the freeway).

Anywho, my SA left me a voicemail in the evening saying that they replaced the HPFP and are going to update the software as well. I'll keep you guys updated on how the car feels after I get it back.

Has other owners of 2010 models experience this same problem? From reading the posts I noticed this problem is with 2007, 2008, 2009 models. By the way, the production date of my car was 11/2009 (if that makes a difference).

Quisp · 10-12-2010, 10:42 PM

It is the old "use software to fix a hardware problem".

And the recall would probably put them close to out of business. The recall would include the 1, 3, and 5 series cars from 2007 to current with the n54 engine, plus any other engine that uses that pump.. That is an assload of cars, and then there are all the ones that are not sold yet or in process that would have to be held up or not sold. I dont think that they could handle that especially if you add the loss of customers due to the press that they would receive.
Just my thoughts on it, not necessarily true.

Ray335i · 10-13-2010, 12:54 AM

Has anyone figured out how to determine the software version without having to go into the dealership? And no, the trip meter button does not work as it only gives you the software version for the display I believe and not the ECU. Someone told me to turn the radio off, then on, hold down the "m" button (not menu button) and then toggle through. I found something called SW38??? Does that make any sense?

Does anyone know if the Bavarian Tech cable from burger tuning shows the current "ECU" software? Otherwise, I'll go to the dealership if I have to.

And for what this is worth, I was told that if you install the JB3 2.0 -set it on MAP 5 (includes lagfix) and regardless of the crappy power "delivery" of the new software, it'll still haul ass. You won't really notice the lack of boost under 3k, because when you floor it, you're already at 3k rpm epecially if you launch right, and every shift after that is well over 3k. If you're not driving it hard, then you won't notice the low boost under 3k, because again, you're not driving it hard, if that makes sense.

I think BMW is just trying to survive this disaster and hopefully they'll get it all figured out for future generations of cars. And I think you are correct, I don't think they can afford a recall of this scale. But what they should do is admit that they're converting our cars to something other than what we signed up for, and give us a credit towards the purchase of a new vehicle down the road, and I'm thinking in the amount of at least what a recall would cost; whether it's $5k, or $10k or whatever, per vehicle on top of any deals going on at the time. Still costly, but manageable as it would be staggered out, and what this would also do is ensure that all of us have to buy a new BMW to get the benefit.

I'd be up for that. Just get me the vehicle that I signed up for and don't touch it after that!

Spazdoc · 10-13-2010, 06:21 AM

Speaking of upgrades (JB3), does GIAC or Proceed negate the effects of lag in the updates? Since they control for so many variables, would a GIAC owner notice a difference when reflashed?

Proper Motion LLC · 10-13-2010, 02:29 PM

I just got a phone call from BMW saying "There is a recall on my car"

I said "a recall? really?"

And they responded, "yah it needs a software update"

I drive a 2009 335i

socrates1 · 10-24-2010, 09:45 PM

I have a November 2007 built date on my 335xi. It was recently in for service and the software was upgraded to v. 39.01.02. My question to you is does the tech have to check the wastgate conversion option in the software on order to correct the lag issue? I read through your posts and it was not clear to me. Any help would be appreciated.

Thank you.

Al Blue4.6l · 10-24-2010, 10:03 PM

Quote:

Originally Posted by socrates1

I have a November 2007 built date on my 335xi. It was recently in for service and the software was upgraded to v. 39.01.02. My question to you is does the tech have to check the wastgate conversion option in the software on order to correct the lag issue? I read through your posts and it was not clear to me. Any help would be appreciated.

Thank you.

not on cars built after September of 2007.

ScaredOnce · 10-25-2010, 07:01 PM

Quote:

Originally Posted by carve

It's in for the software update. The shop foreman says the TSB doesn't apply because they're up to a new software version now! He also says "I drove it and didn't feel any lag".

They're calling me in a few minutes. What do I do?

I recommend politely bitching. If that doesn't work with your dealer, visit another and repeat. I was not having luck with my current dealer on the lag/rattle issue (though they were stellar with some interior gripes I had), so I visited another one.

The new dealer's SM said, "No problem, I know what you're talking about and we can fix that." (though, I heard... "Buy your next 3 or 5 here instead, please.")

mmrussell · 11-02-2010, 02:11 PM

Quote:

Originally Posted by Al Blue4.6l

not on cars built after September of 2007.

My car was built in March of 2007 and has wastegate rattling. Would asking for the wastegate conversion option in the latest software update (39.2?) eliminate the possibility of lag, and maybe close those damn wastegates when they should?

meyergru · 11-02-2010, 02:38 PM

Quote:

Originally Posted by mmrussell

My car was built in March of 2007 and has wastegate rattling. Would asking for the wastegate conversion option in the latest software update (39.2?) eliminate the possibility of lag, and maybe close those damn wastegates when they should?

Nope. Actually, it's the other way round: The rattle-fixing v29.2 was invented because of the mechanical wastegate problem. It simply masks rattles by keeping the wastegates open, which causes lag.

If you disable the rattle-fix by specifically requesting the lag-fix (aka wastegate conversion), you are actually more prone to rattle because it is not masked any more.

The only way to have no rattles and no lag with your build date is the new software with the wastegate conversion option selected and - this is the important part - getting the mechanical problem fixed. Good luck with the last one.

mmrussell · 11-03-2010, 01:51 AM

Quote:

Originally Posted by meyergru

Nope. Actually, it's the other way round: The rattle-fixing v29.2 was invented because of the mechanical wastegate problem. It simply masks rattles by keeping the wastegates open, which causes lag.

If you disable the rattle-fix by specifically requesting the lag-fix (aka wastegate conversion), you are actually more prone to rattle because it is not masked any more.

The only way to have no rattles and no lag with your build date is the new software with the wastegate conversion option selected and - this is the important part - getting the mechanical problem fixed. Good luck with the last one.

Clear, concise, much appreciated. Thanks.

ScaredOnce · 11-04-2010, 01:10 AM

I actually had a voicemail from BMW today regarding, "[my] lag issue". I'm not getting my hopes up, but when I get back to the States I'm looking forward to returning that call.

marconi118 · 11-15-2010, 04:10 AM

coming from a e93 07/07 pre 29.2 that had no lag.
After one year the rattle was there, got new turbos and a couple of updates.
Finally I got 32.1 with the turbo retrofit option activated
Car feels ok but still have the inmpression there is more lag than before...

Now I have the confirmation: pre 29.2 is still the best direct reactive program

I drove the 05/07 335i of a friend, that by "miracle" had the turbos replaced, but no program update, still pre 29.2

skidderss · 11-15-2010, 10:40 PM

Just had a 7/07 335i E93 updated from E89X-07-06-520 to E89X-10-09-511. I did not request 'wastegate retrofit' - I got whatever is standard.

I haven't driven the car enough to evaluate for lag. However, this software updated took care of my concerns:

1. Cold engine/jerky starts from stop. Now smooth.
2. DS shifts are much smoother and D is amazingly smooth. Actually, acceleration overall seems smoother (more linear progression?) - again - haven't had enough time to evaluate (only driven maybe 20 miles).
3. The service indicator no longer has a rediculous high mileage (Oil due in 23,500 miles, etc.)

I had no wastegate noise when it went in (or none that I noticed). I did have a metalic noise that seemed to come from that valve on the driver tailpipe - that could be gone - not sure. Have to put the windows down in the parking ramp. I do think 1st gear sounds a bit louder (more exhaust drone).

Update Dec 1 2010:

After the above update I had significant turbo lag. I called the dealer and scheduled an appointment. I mentioned the wastegate retrofit. They took the car in for a day and the receipt says "Vehicle programming caused this issue Performed (wastegate valve conversion) via ISTA-P." No cost. I'm a happy customer now - all the above problems are still gone and now the lag is gone too. Haven't noticed any valve noises. Excellent.

ScaredOnce · 11-20-2010, 01:00 AM

I begged and pleaded and went to even the GM of my dealership, even gave bulletin numbers referencing the Wastegate Coversion option, and have been basically told to 'buy my next BMW elsewhere'.

Thanks BMW.... HPFP failure, took away some power after a software update, and now told me I'm an idiot. Anyone drive the new S5? Is it fun? I didn't like the C350.

Quisp · 11-23-2010, 09:21 PM

Meyer, How have you been? I am still not having much luck. I had new wastegates and turbos(Thank you Dinan!) Have had codes but nothing done about them due too personal differences with BMW, and then I got it straightened out, had codes but they didnt do what the bulletins said, they told me it needed a valve cleaning(at $800 not under warranty) and that after that was done they would be able to diagnose the car better.. Still not running the way it should but I am not giving up.
Interesting theory about the new software update for the fuel pump issues. What if the software changed the settings for when the car would trip the codes or service light? Like raised the tolerance up a bit so the car would not throw the codes as often while at the same time reducing the performance slightly so that the pump is not under as much stress. That would add some time to the fuel pumps and there would be less of them to replace.
There is definitely something odd about having a recall for a faulty mechanical part but instead of replacing the part, you get new software. If the spacebar on my keyboard is broken, all the software in the world wont fix it. There might be ways to work around it or alternate ways if spacing but the space bar will still be broken. Same with the wastegates. If they dont work (in the mechanical sense) or fit correctly, then the most the software can do is limited by the physical problem with the part whatever it may be. Software cannnot physically repair the part it can only change the operating characteristics or actions of the part.
I might have gone a wee bit off the topic there, and I apologize. I just had 3 bowls of lucky charms and those marshmallow stars are the bomb.

Kruz · 11-24-2010, 03:46 PM

Quote:

Originally Posted by Rysandro

I just got a phone call from BMW saying "There is a recall on my car"

I said "a recall? really?"

And they responded, "yah it needs a software update"

I drive a 2009 335i

You too? They just called and said they need to uprgade software fix "NPU" and "ESC". Aka "No Profit for Us" and "Exceptionally Slow Control".

meyergru · 11-24-2010, 04:22 PM

Quote:

Originally Posted by Quisp

Meyer, How have you been?

...

I just had 3 bowls of lucky charms and those marshmallow stars are the bomb.

Hi Quisp,

sad to hear you still are experiencing problems. My car is running fine so far, with v39.x and still on the first pump (at ~30000 miles). Now that it has more than three years, I am starting to think about something new. However, I prefer the N54 to the N55 and steptronic to DKG and I already have the LSD.

So maybe I opt for the Alpina or M3 next time. Also, I think that the F10 is a nice-looking car (if it only wasn't so expensive).

If you think that marshmallow stars are "it", you should REALLY try out alcoholic beverages. I recommend a 2004 Remirez de Ganuza.

Quisp · 11-25-2010, 02:11 PM

Remirez de Ganuza...a wine afficianado I see. I lean towards the vodkas myself, and then I lean towards the wall and eventually leaning on the floor.
I still have my original fuel pump even though I have been having the symptoms and even some of the codes. I did get ehe latest software(latest one mont ago when i got it). I did not notice much difference other than the pump noise when I got close to the car. My crank times are getting worse though so i will see what happens.
I still have hesitation when I accelerate and the wastegatye noise is coming back slowly. New ones were put on a while back and after a few weeks they were rattling again. Took it in and they adjustwed something which got rid of the rattle but now it is creeping in again and the power seems to be lessening as the noise gets louder.

Unky · 12-02-2010, 04:12 PM

Here's the anecdote:

Back in February of 2009 I was looking at my first service upgrade of the DME from it's OEM condition.

This was a change from initial data status: E89X-07-03-521
to target data status: E89X-08-09-530

According to BMW_tech's Progman software integration table this would be a revision of software version 25.1.1 to 32.1. I was aware that this change superseded several intermediate versions that were problematic and reflect the original subject matter of this thread. I was also aware the service center had switched from Progman to ISTA only 6 months prior. The car's performance was noticeably improved compared to the stock condition. I was convinced that problems that arise from software upgrades had been successfully avoided up to this point.

Skip to about three weeks ago I'm cruising 65 on the freeway and wham!…the car lurches downward from an engine hesitation. Check engine light comes on, I pull over to the shoulder and call BMW Assist. They make an immediate appointment at local service. Diagnostics indicate the following faults:

Low pressure electric fuel sensor 29F3
Misfire fault stored defect code: 1042044200 http://www.bmwtis.com/tsb/bulletins/...p/B120609g.htm

After clearing the codes and replacing the part, service upgraded the DME, target data status: E89X-10-09-511 (software version 39.4)

Now here's the problem:

I think the village idiot was working service sessions that day because when I got the car back all my settings had been eliminated (service technicians are required to download customer settings prior to upgrade sessions and upload again when completed). The fiber optic port was hanging open. I easily could have damaged it with my foot, and worst of all the car's power distribution and responsiveness of the turbo's had been significantly inhibited.

I have a good relationship with the service manager with whom I deal exclusively. He confessed downgrades were not a possibility and was committed to getting the problems resolved. He scheduled a new appointment for a fiber optic IRAP session with BMW NA on the back end. At appointment, I asked him if during the previous session the wastegate conversion option had been manually selected. He was unaware of this requirement. I suggested we re-run the session manually selecting the option via the drop down menu, and if this didn't solve the problems we could move on to the IRAP session. After some initial skepticism he agreed, and after completion and test drive it was clear the car had returned to its improved condition. So I'm extending some well deserved gratitude to Meyergru for repeating the rectification procedure over-and-over in this forum making it easier to identify. While it may seem frustrating to reiterate procedure, information this important serves forum members well when it's repeated.

I'm waiting for BMW to release the next replacement part fuel pump for this model 335i expected 2-6 weeks. At the recall appointment to replace the part, I plan to include in my service customer notes, "No unauthorized software upgrades without consulting customer".

Big Tom · 12-02-2010, 05:05 PM

Quote:

Originally Posted by meyergru

Nope. Actually, it's the other way round: The rattle-fixing v29.2 was invented because of the mechanical wastegate problem. It simply masks rattles by keeping the wastegates open, which causes lag.

If you disable the rattle-fix by specifically requesting the lag-fix (aka wastegate conversion), you are actually more prone to rattle because it is not masked any more.

The only way to have no rattles and no lag with your build date is the new software with the wastegate conversion option selected and - this is the important part - getting the mechanical problem fixed. Good luck with the last one.

My car is built in October 2006 and I got the latest software installed today.
My turbos is replaced a year ago and I have no rattle.

Question: Do I have to tell the BMW tech to manually activate the Lag-Fix option in the software?
Which setting is the default setting? (Lag-Fix or Rattle-Fix?)

meyergru · 12-02-2010, 05:29 PM

Both of these answers valid for your build date:

Quote:

Originally Posted by Big Tom

Question: Do I have to tell the BMW tech to manually activate the Lag-Fix option in the software?

Yes.

Quote:

Originally Posted by Big Tom

Which setting is the default setting? (Lag-Fix or Rattle-Fix?)

Rattle-Fix.

10-12-2010, 10:08 PM	#4797
RMX New Member 0 Rep 8 Posts Drives: 2010 E92 335i Join Date: Oct 2010 Location: LA iTrader: (0)	Hey everyone, I just joined the forum and wanted share my experiences. I just took in my 2010 E92 335i into the dealership for the infamous "long-crank & engine malfunction-reduced power" problem. After reading all the different posts about turbo lag and the car just not driving the same I was hesitant to take it in, but I had to b/c it became a safety issue (especially on the freeway). Anywho, my SA left me a voicemail in the evening saying that they replaced the HPFP and are going to update the software as well. I'll keep you guys updated on how the car feels after I get it back. Has other owners of 2010 models experience this same problem? From reading the posts I noticed this problem is with 2007, 2008, 2009 models. By the way, the production date of my car was 11/2009 (if that makes a difference).
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10-12-2010, 10:42 PM	#4798
Quisp Does not play well with others 81 Rep 1,787 Posts Drives: BMW Join Date: Apr 2007 Location: Arizona iTrader: (4)	It is the old "use software to fix a hardware problem". And the recall would probably put them close to out of business. The recall would include the 1, 3, and 5 series cars from 2007 to current with the n54 engine, plus any other engine that uses that pump.. That is an assload of cars, and then there are all the ones that are not sold yet or in process that would have to be held up or not sold. I dont think that they could handle that especially if you add the loss of customers due to the press that they would receive. Just my thoughts on it, not necessarily true. __________________
	Appreciate 0 Quote

10-13-2010, 12:54 AM	#4799
Ray335i New Member 0 Rep 16 Posts Drives: 2008 335i sedan Join Date: Jun 2010 Location: Alberta, Canada iTrader: (0)	Has anyone figured out how to determine the software version without having to go into the dealership? And no, the trip meter button does not work as it only gives you the software version for the display I believe and not the ECU. Someone told me to turn the radio off, then on, hold down the "m" button (not menu button) and then toggle through. I found something called SW38??? Does that make any sense? Does anyone know if the Bavarian Tech cable from burger tuning shows the current "ECU" software? Otherwise, I'll go to the dealership if I have to. And for what this is worth, I was told that if you install the JB3 2.0 -set it on MAP 5 (includes lagfix) and regardless of the crappy power "delivery" of the new software, it'll still haul ass. You won't really notice the lack of boost under 3k, because when you floor it, you're already at 3k rpm epecially if you launch right, and every shift after that is well over 3k. If you're not driving it hard, then you won't notice the low boost under 3k, because again, you're not driving it hard, if that makes sense. I think BMW is just trying to survive this disaster and hopefully they'll get it all figured out for future generations of cars. And I think you are correct, I don't think they can afford a recall of this scale. But what they should do is admit that they're converting our cars to something other than what we signed up for, and give us a credit towards the purchase of a new vehicle down the road, and I'm thinking in the amount of at least what a recall would cost; whether it's $5k, or $10k or whatever, per vehicle on top of any deals going on at the time. Still costly, but manageable as it would be staggered out, and what this would also do is ensure that all of us have to buy a new BMW to get the benefit. I'd be up for that. Just get me the vehicle that I signed up for and don't touch it after that!
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10-13-2010, 06:21 AM	#4800
Spazdoc Major 43 Rep 1,219 Posts Drives: 2020 C63S, 2001 S4 Join Date: Jan 2007 Location: Earth iTrader: (9) Garage List 2007 335i [0.00]	Speaking of upgrades (JB3), does GIAC or Proceed negate the effects of lag in the updates? Since they control for so many variables, would a GIAC owner notice a difference when reflashed?
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10-13-2010, 02:29 PM	#4801
Proper Motion LLC Custom Powder Coater 149 Rep 2,784 Posts Drives: White 335i Sedan Join Date: Dec 2008 Location: Orange County CA iTrader: (2)	I just got a phone call from BMW saying "There is a recall on my car" I said "a recall? really?" And they responded, "yah it needs a software update" I drive a 2009 335i __________________ www.propermotion714.com
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10-24-2010, 09:45 PM	#4802
socrates1 New Member 1 Rep 14 Posts Drives: M3 Join Date: Oct 2010 Location: new england iTrader: (0)	Question for Meyergru I have a November 2007 built date on my 335xi. It was recently in for service and the software was upgraded to v. 39.01.02. My question to you is does the tech have to check the wastgate conversion option in the software on order to correct the lag issue? I read through your posts and it was not clear to me. Any help would be appreciated. Thank you.
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11-04-2010, 01:10 AM	#4808
ScaredOnce Very Important 20 Rep 450 Posts Drives: 335xi (e92) Join Date: Sep 2010 Location: PIT iTrader: (0) Garage List 2008 BMW 335xi (e92) [9.00] 2008 Pontiac G8 GT [4.00] 2002 Pontiac Grand ... [0.00] 2001 Cadillac, Eldo ... [0.00]	I actually had a voicemail from BMW today regarding, "[my] lag issue". I'm not getting my hopes up, but when I get back to the States I'm looking forward to returning that call.
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11-15-2010, 04:10 AM	#4809
marconi118 Major 96 Rep 1,186 Posts Drives: 06/07 e93 335i Join Date: Nov 2008 Location: europe iTrader: (0)	coming from a e93 07/07 pre 29.2 that had no lag. After one year the rattle was there, got new turbos and a couple of updates. Finally I got 32.1 with the turbo retrofit option activated Car feels ok but still have the inmpression there is more lag than before... Now I have the confirmation: pre 29.2 is still the best direct reactive program I drove the 05/07 335i of a friend, that by "miracle" had the turbos replaced, but no program update, still pre 29.2
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11-15-2010, 10:40 PM	#4810
skidderss North Star BMW CCA 3 Rep 18 Posts Drives: 07' E93 335i Join Date: Oct 2010 Location: MN iTrader: (0)	Just had a 7/07 335i E93 updated from E89X-07-06-520 to E89X-10-09-511. I did not request 'wastegate retrofit' - I got whatever is standard. I haven't driven the car enough to evaluate for lag. However, this software updated took care of my concerns: 1. Cold engine/jerky starts from stop. Now smooth. 2. DS shifts are much smoother and D is amazingly smooth. Actually, acceleration overall seems smoother (more linear progression?) - again - haven't had enough time to evaluate (only driven maybe 20 miles). 3. The service indicator no longer has a rediculous high mileage (Oil due in 23,500 miles, etc.) I had no wastegate noise when it went in (or none that I noticed). I did have a metalic noise that seemed to come from that valve on the driver tailpipe - that could be gone - not sure. Have to put the windows down in the parking ramp. I do think 1st gear sounds a bit louder (more exhaust drone). Update Dec 1 2010: After the above update I had significant turbo lag. I called the dealer and scheduled an appointment. I mentioned the wastegate retrofit. They took the car in for a day and the receipt says "Vehicle programming caused this issue Performed (wastegate valve conversion) via ISTA-P." No cost. I'm a happy customer now - all the above problems are still gone and now the lag is gone too. Haven't noticed any valve noises. Excellent. Last edited by skidderss; 12-02-2010 at 09:05 PM.. Reason: Update Dec 1 2010
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11-20-2010, 01:00 AM	#4811
ScaredOnce Very Important 20 Rep 450 Posts Drives: 335xi (e92) Join Date: Sep 2010 Location: PIT iTrader: (0) Garage List 2008 BMW 335xi (e92) [9.00] 2008 Pontiac G8 GT [4.00] 2002 Pontiac Grand ... [0.00] 2001 Cadillac, Eldo ... [0.00]	I begged and pleaded and went to even the GM of my dealership, even gave bulletin numbers referencing the Wastegate Coversion option, and have been basically told to 'buy my next BMW elsewhere'. Thanks BMW.... HPFP failure, took away some power after a software update, and now told me I'm an idiot. Anyone drive the new S5? Is it fun? I didn't like the C350.
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11-23-2010, 09:21 PM	#4812
Quisp Does not play well with others 81 Rep 1,787 Posts Drives: BMW Join Date: Apr 2007 Location: Arizona iTrader: (4)	Meyer, How have you been? I am still not having much luck. I had new wastegates and turbos(Thank you Dinan!) Have had codes but nothing done about them due too personal differences with BMW, and then I got it straightened out, had codes but they didnt do what the bulletins said, they told me it needed a valve cleaning(at $800 not under warranty) and that after that was done they would be able to diagnose the car better.. Still not running the way it should but I am not giving up. Interesting theory about the new software update for the fuel pump issues. What if the software changed the settings for when the car would trip the codes or service light? Like raised the tolerance up a bit so the car would not throw the codes as often while at the same time reducing the performance slightly so that the pump is not under as much stress. That would add some time to the fuel pumps and there would be less of them to replace. There is definitely something odd about having a recall for a faulty mechanical part but instead of replacing the part, you get new software. If the spacebar on my keyboard is broken, all the software in the world wont fix it. There might be ways to work around it or alternate ways if spacing but the space bar will still be broken. Same with the wastegates. If they dont work (in the mechanical sense) or fit correctly, then the most the software can do is limited by the physical problem with the part whatever it may be. Software cannnot physically repair the part it can only change the operating characteristics or actions of the part. I might have gone a wee bit off the topic there, and I apologize. I just had 3 bowls of lucky charms and those marshmallow stars are the bomb. __________________
	Appreciate 0 Quote

11-25-2010, 02:11 PM	#4815
Quisp Does not play well with others 81 Rep 1,787 Posts Drives: BMW Join Date: Apr 2007 Location: Arizona iTrader: (4)	Remirez de Ganuza...a wine afficianado I see. I lean towards the vodkas myself, and then I lean towards the wall and eventually leaning on the floor. I still have my original fuel pump even though I have been having the symptoms and even some of the codes. I did get ehe latest software(latest one mont ago when i got it). I did not notice much difference other than the pump noise when I got close to the car. My crank times are getting worse though so i will see what happens. I still have hesitation when I accelerate and the wastegatye noise is coming back slowly. New ones were put on a while back and after a few weeks they were rattling again. Took it in and they adjustwed something which got rid of the rattle but now it is creeping in again and the power seems to be lessening as the noise gets louder. __________________
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12-02-2010, 04:12 PM	#4816
Unky Scout 3 Rep 41 Posts Drives: 2007 E92 MT Join Date: Oct 2008 Location: Vegas iTrader: (0) Garage List 2007 335i Coupe [0.00] 1966 Cadillac Devil ... [0.00]	Here's the anecdote: Back in February of 2009 I was looking at my first service upgrade of the DME from it's OEM condition. This was a change from initial data status: E89X-07-03-521 to target data status: E89X-08-09-530 According to BMW_tech's Progman software integration table this would be a revision of software version 25.1.1 to 32.1. I was aware that this change superseded several intermediate versions that were problematic and reflect the original subject matter of this thread. I was also aware the service center had switched from Progman to ISTA only 6 months prior. The car's performance was noticeably improved compared to the stock condition. I was convinced that problems that arise from software upgrades had been successfully avoided up to this point. Skip to about three weeks ago I'm cruising 65 on the freeway and wham!…the car lurches downward from an engine hesitation. Check engine light comes on, I pull over to the shoulder and call BMW Assist. They make an immediate appointment at local service. Diagnostics indicate the following faults: Low pressure electric fuel sensor 29F3 Misfire fault stored defect code: 1042044200 http://www.bmwtis.com/tsb/bulletins/...p/B120609g.htm After clearing the codes and replacing the part, service upgraded the DME, target data status: E89X-10-09-511 (software version 39.4) Now here's the problem: I think the village idiot was working service sessions that day because when I got the car back all my settings had been eliminated (service technicians are required to download customer settings prior to upgrade sessions and upload again when completed). The fiber optic port was hanging open. I easily could have damaged it with my foot, and worst of all the car's power distribution and responsiveness of the turbo's had been significantly inhibited. I have a good relationship with the service manager with whom I deal exclusively. He confessed downgrades were not a possibility and was committed to getting the problems resolved. He scheduled a new appointment for a fiber optic IRAP session with BMW NA on the back end. At appointment, I asked him if during the previous session the wastegate conversion option had been manually selected. He was unaware of this requirement. I suggested we re-run the session manually selecting the option via the drop down menu, and if this didn't solve the problems we could move on to the IRAP session. After some initial skepticism he agreed, and after completion and test drive it was clear the car had returned to its improved condition. So I'm extending some well deserved gratitude to Meyergru for repeating the rectification procedure over-and-over in this forum making it easier to identify. While it may seem frustrating to reiterate procedure, information this important serves forum members well when it's repeated. I'm waiting for BMW to release the next replacement part fuel pump for this model 335i expected 2-6 weeks. At the recall appointment to replace the part, I plan to include in my service customer notes, "No unauthorized software upgrades without consulting customer". Last edited by Unky; 12-02-2010 at 06:57 PM..
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