Has anyone contacted BMW regarding 29.2 and lag?

chrisdack · 04-20-2010, 05:21 PM

Quote:

Originally Posted by Amdahl

Do you know what version you had before? Unless you were updated after manufacture, you should not have had a lag version of the software. Assuming you had a good version, you must have been suffering reduced performance for some other reason. Perhaps the wastegate pushrod was the reason?

As to the vibration, mention it to the service tech. Since that is a bit of a subjective thing, it is hard to compare.

As an aside, it was my understanding (based on this or related thread) that the wastegate conversion option is no longer available to the service tech in the newer versions of the ISTAP software(it became standard, obsolete, or auto-operating?) . Perhaps this information was wrong?

The Puma response was 13328837-11

Wastegate valve conversion was def in the response measures, but you're right was standard for that version of software for pre-Nov 2007 cars. The puma said check integration level for puma (wastegate pushrods and adjustment bolts needed to be 8mm diameter, not 6mm) I specifically remember reading over the shoulder the statement that 6mm meant that wastegate fix hadn't been made yet, so wastegate pushrod fix was needed.
They removed turbos, upgraded and tested wastegates using diagnostic, refitted and re-calibrated with vacuum diagnostic. (I have that in writing)

Car had been previously reprogrammed when I had new locks fitted once, but the performance didn't degrade at that time.

Vibration is on light throttle around 3k to 4k rpm and is a very obvious growl, with a light pressure dump fizz on lift of the throttle. I will ask tech what's up with the growl.

250XFOS · 04-21-2010, 03:19 PM

Quote:

Originally Posted by 250XFOS

There are versions of 2.37 , I've got E89x-10-03-502, the link shown on a previous post takes you to a graphic that lists all versions, the last one shown for my 335 ends in 501 so I should have got the "latest", which as per your question, WILL fix the lag, but the tranny shifts are bullshit, I guess BMW is getting complaints from conservative drivers that feel the shifts too rough, now this software makes the car shift too smooth taking away the sport spirit of the 335, please BMW leave that to Mercedes Benz. Responding to other post question, I do have less gas mileage, how I measure, Easy, same route to work 5 days a week, mpg before and after, about 1.5 LESS than with previous software.

Comments to another post, I meant jumpy on a weird way, I had a coupe before that was not smooth not jumpy just sport shifts. I meant unusual jump, but yes now I prefer that to the smooooth shifts. See if I can get away with a retrofit, I'll post later, and/or what fix they come with.

Do someone knows if the tranny can be programmed separately. For my wifes x3 a foreman told me they have a program so the changes are not aggresive, I never went for it but they did offered.

Good Luck

Ok, took car to the dealer, they brought a mechanic for a test drive. The mechanic was not a very friendly guy, did not even say hello or anything, just asked for the keys and jumped into the driver seat. We went for a couple of miles and the only words he said was "feels normal to me". I explain that it was not like that before and that is not normal to ME. So we went back to the office and the guy says that yes he feels a slight hesitation when shifting from one gear to another but that is what all the cars are doing with the latest software update and basically saying you have to eat it. WHAT THE HE... . he asked the SA for the previous paperwork they had to go to the shop to get it and he said well we can reprogrammed but I doubt it will get any better. I asked if the old software can be changed, they said no because then it will go back to a software version which will give long cranks and a fuel pump replacement. so with them there was not way to made them put the old software back. Car stayed there for reprogramming but now I will try BMWNA.

GUYS, DO NOT GET ANY SOFTWARE UPDATES NOW, THAT IS IF YOU WANT A GRANDMA SHIFTING 335. LAG IS GONE, POWER IS NOT AND ISSUE, SHIFTING IS AN ISSUE. SOFTWARE VERSION IS 2.3.71

Will post the results later . good luck

TunasBMW · 04-22-2010, 12:44 PM

I had HPFP failure two weeks ago and got it replaced. Afterwards, I noticed whenever I step on the gas to accelerate, there is defintely a lag before the car starts going, RPM jumps to 3500-4000 before it kicks in.

Lucky for me, my car has since overheated twice while doing 70 on the freeway and going into limp mode and is going into service again this week so they can figure out whats going on. Not sure what software update I have but will find out.

Jeff Flowerday · 04-29-2010, 11:45 AM

Got my software updated yesterday, to fix a starting problem. If I let the car sit for a few days it could take 3-4 seconds of turning over to start. Apparently there's a software update for that?

Anyway, I now have lag in the low RPM range. One thing I've noticed they've definately tried to adjust to the Auto Transmission shift points to compensate, it down shifts much sooner now, but still it's not enough. I want my low end torque back!!!!

I guess I'm pooched for another year until the lease runs out. Maybe if they are nice they'll let me out early and put me in a M3. That should solve the lag issues.

mpt3456 · 04-29-2010, 01:22 PM

I just purchased a 2007 335i cert w/auto and this forum is making me paranoid. I do not feel any surge after 3000RPM, just steady power throughout as advertised. My concern is that if I bring the car in they will reprogram and I'll be SOL. Is the latest version lag free? Are they up to 3.0 now? Should I pre-order a JB3 if I plan on going in for BMW service?

M3 Eater · 05-17-2010, 05:55 PM

can't possibly read all the thread but my tech has found a way to update my car to address the wastegate related lag. He told me not to tell a bunch of folks.....because its only possilbe on certain cars produced at certian build times. Aparantly they don't want folks calling to ask to have this done. I am really greateful that I have a tech that will listen, research, and act in my favor. I hope that ya'll can be as lucky as me! BTW, my car has adapted tremendously around the lag but it took time and a little tune tweek to get it done but car runs strong now. Im bringing it in this week to have the wastegate update done. Good luck to those of you that were fooled into bringing their car in to make it slower.....

07'335iAlpine · 05-19-2010, 03:54 PM

So i as well just purchased a '07 335i. Why the hell is there so many variations of this car's software. I have noticed the lag as well, it definitely is not getting better but as i have only been in my car for about a month. i can't say i have driven one with the previous software. On the contrary its obvious that this car is not reaching full torque by 1800 rpm or at the least even 2000 rpm. and Full boost seems like its not reached until 3500 rpm or so. this is not how it was advertised and i researched alot of test drives of it and the reviews seemed great and made the car seem beastly. For lack of a Better Word, "What the Fuck BMW!?" I am very dissappointed as well, and i will be letting trying to find out what software i am currently running. Its enough that they a gave us a shitty differential but now they are downtuning the car to be slower WTF! I WANT MORE POWER ......AND BOOST!

bulldog_yyc · 05-19-2010, 04:56 PM

Quote:

Originally Posted by 07'335iAlpine

So i as well just purchased a '07 335i. Why the hell is there so many variations of this car's software. I have noticed the lag as well, it definitely is not getting better but as i have only been in my car for about a month. i can't say i have driven one with the previous software. On the contrary its obvious that this car is not reaching full torque by 1800 rpm or at the least even 2000 rpm. and Full boost seems like its not reached until 3500 rpm or so. this is not how it was advertised and i researched alot of test drives of it and the reviews seemed great and made the car seem beastly. For lack of a Better Word, "What the Fuck BMW!?" I am very dissappointed as well, and i will be letting trying to find out what software i am currently running. Its enough that they a gave us a shitty differential but now they are downtuning the car to be slower WTF! I WANT MORE POWER ......AND BOOST!

you need a tune bro!

335assetmgmt · 05-24-2010, 02:28 PM

Car into limp mode for 4th time in 2 years. Figured I was looking at my 4th HPFP replacement, which is unacceptable regardless of whether or not the part and labor is covered.

Turns out that it was not the HPFP this time around. Replaced the Vanos Solenoid and Bearing Wedge, did a reprogram and the car is back to the beast I only had a distant memory of from the past. Exhaust note is completely different ( burbly and deeper ), the turbo/gates seem to pop like an STI, and the torque from right out of the gate is there the whole way. This is the car that I bought, not the limp machine it turned into the past two years with program after reprogram and HPFP after HPFP.

Trade off is that with this first tank of gas I have literally gone from 25 mpg combined to just under 20 mpg. Honestly I'll take those numbers just to have the car back to the way it was when I purchased.