[Mr. 5]

Originally Posted by marconi118

solenoids "pressure converters" act in parallel for bot actuatirs (note the 2 T pipes)

so you can bypass one without problem

doth actuators open or close at the same time

What you're saying makes sense because when I used the JB2 and bypassed the rear actuator, my rear wastegate was still closed.
hmmm.

Anyway, another good thing about getting these new turbos is that my oil temps dropped a good ten degrees.
I use to be at 240-250 F, but now it looks like I'm around 230 cruising.

I'll bet this has to do with the wastegates being open during cruising.
So, then again, maybe it has to do with the newer programmin instead of the new turbos.

[Driver72]

Craig any idea if what I was saying in my post a few above is normal?

[Park2670]

Intersesting note that your oil is cooler. If they are open the housing will definetly be much cooler. That's a plus to the negatives you have gotten with the new software.

[Mr. 5]

Originally Posted by Driver72

Craig any idea if what I was saying in my post a few above is normal?

Totally makes sense. I agree.

Originally Posted by Park2670

Intersesting note that your oil is cooler. If they are open the housing will definetly be much cooler. That's a plus to the negatives you have gotten with the new software.

Yah, we'll see. Hopefully the temps will be proportional once I get on it.

[Driver72]

Originally Posted by Mr. 5

Totally makes sense. I agree.



Yah, we'll see. Hopefully the temps will be proportional once I get on it.

So the slight ticking noise I hear still is normal because of the new software keeping the wastegates open a touch?
And this fact is why I can't run the newest lagfix maps on 1.3 anymore without getting wastegate rattle?

[dkvby]

^ i get rattle with the 1.3 lagfix maps too, i do hv new programs with turbos replaced 2 months ago

[TurboBimmer]

Took my car to the dealer to get new wastegate actuators in order to fix the rattle, but they called me and said they would replace both turbos

Got an appointment in three weeks. So for now the car has been updated to 33.3. I was pre-29.2, and am anxious to see if I will notice more lag now (gonna get the car back this afternoon).

Nevertheless it's more important that the car gets new turbos

[Mr. 5]

Originally Posted by Autobahn335i

Took my car to the dealer to get new wastegate actuators in order to fix the rattle, but they called me and said they would replace both turbos

Got an appointment in three weeks. So for now the car has been updated to 33.3. I was pre-29.2, and am anxious to see if I will notice more lag now (gonna get the car back this afternoon).

Nevertheless it's more important that the car gets new turbos

That's exactly how I thought. I'd rather get hardware that works and sacrifice some lag.
Here's what I think about the newer programming--There is a little lag but it's not that bad. Based on what everybody talks about 29.2 and 30.2 was horrible.
I really like the exhaust sound now. It's a little louder since the wastegates are open when crusing now.
And, as said above, my oil temps have dramaticaly decreased!!

[Xander]

Originally Posted by Mr. 5

That's exactly how I thought. I'd rather get hardware that works and sacrifice some lag.
Here's what I think about the newer programming--There is a little lag but it's not that bad. Based on what everybody talks about 29.2 and 30.2 was horrible.
I really like the exhaust sound now. It's a little louder since the wastegates are open when crusing now.
And, as said above, my oil temps have dramaticaly decreased!!

I just recieved a software update and thought the exhaust was a little louder too, which is OK in my book. However the lag bothers me a little, I feel like whenever I get on it for just a second I notice it most, because it has barely kicked in by the time I am ready to let go of the pedal again.

x...

[TurboBimmer]

So here are my first impressions with the new software:

There is a little lag, but it's definitely not dramatic. Shifting in D seems a bit smoother now. The Idrive also has gotten updated, which is fine.

The only real downside on my car is that the exhaust has become a LOT more quiet On pre-29.2 the performance exhaust sure was hellish loud, and I just LOVED its note when cruising through towns Whereas now it sounds maybe a bit too "civilized". Well, maybe this is gonna change a bit with the new turbos and the upgraded wastegate hardware which will be installed in three weeks (at least I hope so...).

[Big Tom]

Is it really necessary to upgrade the software from pre-29.2 to the newest version when the turbos is replaced?
Doesn´t the old software suite the latest turbo version?

[TurboBimmer]

Hmm. I don't think you can persuade your dealer to replace the turbos if they can't "try" to fix it with a software update. Although by now we all know that it will not fix the rattling

[Big Tom]

Originally Posted by Autobahn335i

Hmm. I don't think you can persuade your dealer to replace the turbos if they can't "try" to fix it with a software update. Although by now we all know that it will not fix the rattling

Yes, but if the turbos are about to be replaced due to the "police siren"-issue, it´s kinda hard to fix the problem with just a software update...
That´s why i´m asking this.

[Kerosene Hat]

Originally Posted by Big Tom

Is it really necessary to upgrade the software from pre-29.2 to the newest version when the turbos is replaced?
Doesn´t the old software suite the latest turbo version?

The current SIB outlines the troubleshooting process - software update, actuator replacement, turbo replacement.

I just had both turbos replaced after the above process was outlined and sent through the PUMA case channel - and have v. 32.2. So far, I am ok w/ 32.2 and have noticed that oil temps are ~10 degrees cooler, as Mr5 noted. However, BMW will give you a "reversion" software flash that provides pre-29.2 wastegate duty cycle characteristics (wg open at idel, more torque down low), but BMW warns you that you may get a rattle back.

The whole process for me involved nearly a month in shop time for my vehicle - over 3 distinct service visits. Time consuming, but it feels a LOT better to have functioning turbos again!

HTH

[Big Tom]

Originally Posted by Kerosene Hat

The current SIB outlines the troubleshooting process - software update, actuator replacement, turbo replacement.

I just had both turbos replaced after the above process was outlined and sent through the PUMA case channel - and have v. 32.2. So far, I am ok w/ 32.2 and have noticed that oil temps are ~10 degrees cooler, as Mr5 noted. However, BMW will give you a "reversion" software flash that provides pre-29.2 wastegate duty cycle characteristics (wg open at idel, more torque down low), but BMW warns you that you may get a rattle back.

The whole process for me involved nearly a month in shop time for my vehicle - over 3 distinct service visits. Time consuming, but it feels a LOT better to have functioning turbos again!

HTH

The work on my car has nothing to do with the BMW dealer or the BMW warranty, thats why I can "skip" the process you just explained.

So my question still remains; Will the old software (pre-29.2) suit the newest version of turbos and wastegates without any issues?

[Kerosene Hat]

Prob not. Check out my post. BMW specifically warns of rattle w/ the "new" pre-29.2 software - that is, the "revert" flash. If you have true version < 29.2 it should still work - the shop foreman told me the new turbos they put on are the same design.

But no issues = not committed by BMW.

[e.n335]

Originally Posted by Kerosene Hat

Prob not. Check out my post. BMW specifically warns of rattle w/ the "new" pre-29.2 software - that is, the "revert" flash. If you have true version < 29.2 it should still work - the shop foreman told me the new turbos they put on are the same design.

But no issues = not committed by BMW.

Respectfully, they are not. The wastegate rods are more beefy ( +2mm ), not sure whether the actuators are the same. I don't know my exact ECU SW version ( will be 34.1 or greater ) , the rattle has gone and there is no lag compared to pre.29.2, at least I can't feel it. Got my new turbos last week ( cause has been wastegate rattling issue ).

Cheers,
Eugen

[A418t81]

Craig, I noticed they changed the turbos with the engine still in the car. They removed that passenger side engine mount. Did they support the engine from above, or what?

[GMWNashville]

yes engine gets support from above...its easiest to remove pass mount and lower subframe to allow more space to work...

[WAYNEBO]

So just to confirm.. this is a known problem that a PUMA case identifies?? Does this mean that BMW is acknowledging a weak design in the wastegates and outlines a dealer response procedure of software > wastegate > turbo debugging path??

[Jed]

Out of curiousity, when were the new turbos being built/sent out? I had mine replaced due to the wastegate rattle issue at the beginning of this year. My SA told me they were upgraded/new design turbos. I just want to confirm.

Thanks

[wsybert]

Mine is going in this Wednesday for rattle. SM told me that it's a tolerance issue with the wastegate. What sucks is they will do a software update to see if that works. If they know there is an issue, why do the software!
One question I have, is this... Car was in two weeks ago for maintenance. Plugs and oil change, and VANOS codes. They cleaned the solenoids and told me they updated me to the latest software. Is there a specific software upgrade that is a piggyback or addition to the upgrade I just got?
Mine rattles at startup on decel after rev or in gear. Then goes away when warm... about 6-7 min.
SM told me current SIB is software then turbo replacement. No actuator replacement, since the issue is with the turbo wastegate, and not actuator.