[sfury]

Originally Posted by JOe335i

any CEL or limps?

nope, none yet. *knock on wood*

[5soko]

here is something i was looking into.

the actuator creats a small wear mark on the actuator ARM(long silver rod), the wear is how far the actuator gets pulled into Actuator itself(which closes the wastegate) more then likely during most peoples first 10k miles while the actuator is or was working well, it created a WEAR mark that showed the full functional length of pull and release. it left a ending wear mark.

now there are two Actuators and one we can see and one we cannot, so this doesnt go for, "Oh" mine doesnt have that extra short wear mark and i still have the ticking noise, since the front turbo actuator could be faulty.
AU335 i took your pic to show people what i mean. just for kicks, it does look like your(AU335) Actuator arm are TWO wear marks on it which mean, your actuator WAS working properly but now that second mark means that somethign is wrong and it(actuator) isnt pulling

during the time you took this picture, did you ever experience the Ticking noise?

just an idea to throw out there guys.


as you can see there looks to be two ending wear marks, the longer one showing full operation and extension. no rattle.
the second showing the shoter mark, the Actuator wasnt working and wasnt pulling the arm in all the way, in turn, the wastegate wasnt and isnt closing all the way giving to a ticking and rattling noise while it bangs itself aganist the wastegate seat.
i would like to hear mr 5 reponse with some pics! my theory anyways

[Bubbles]

x8!

May build here as well, wow!

[JOe335i]

wtf is up with May builds lol.

[stressdoc]

What I am hoping for, should my wastegates eventually prove faulty, is to get the turbos replaced with the newer, more durable version. That should result in an engine that will go 250k miles without major repairs. Everything else seems relatively bulletproof about the major engine internals.

[BlueLion]

Originally Posted by stressdoc

What I am hoping for, should my wastegates eventually prove faulty, is to get the turbos replaced with the newer, more durable version. That should result in an engine that will go 250k miles without major repairs. Everything else seems relatively bulletproof about the major engine internals.

I like that idea, you just got to get that done before the warranty time runs out.

[JOe335i]

Originally Posted by stressdoc

What I am hoping for, should my wastegates eventually prove faulty, is to get the turbos replaced with the newer, more durable version. That should result in an engine that will go 250k miles without major repairs. Everything else seems relatively bulletproof about the major engine internals.

From what i have learned, there is no new turbos, but new Actuators.

People have to understand this isnt very serious, and has nothing to do with the cause of power/tunes and such. you might lose some low end power and boost response, and get a anyoing rattle sound, but thats about it ,wont do much harm. at least the N54 can talk and tells us, HEY MY actuator is broken, rattle, rattle, rattle. lol

[jadeddjay]

Originally Posted by E92Fan

That is correct. My car is build 08/2006 and had the actuators replaced first of all, then the turbos thereafter as a precautionary measure.

The official line from BMW is that they recognise there is a potential problem with the actuators. In order for the work to be covered under warranty, they require the BMW dealer to firstly update the software to the latest version, then if that does not solve the ticking problem, replace the turbo actuators. Thereafter, if the problem still persists, then replacement turbos can be requested under warranty. However, that does mean that if new turbos are required, the techs have actually had to take apart the engine TWICE... it's a real pain, and takes a lot of time and effort as it isn't an easy job to do...

do you have anything official to back that up? i just got my car back from wastegate repair. sounds better but the ticking isnt completely gone. now what? ive had to cite SIBs to get anything done with my dealer

also i think there are new turbos:
http://www.e90post.com/forums/showthread.php?t=160657

Originally Posted by Bubbles

The new turbos are a revised part and bit different from the original hardware. I didn’t realize how much mid-range boost I was missing, the power loss was so gradual it wasn’t noticeable until it was near failure.

[oddjob2021]

Originally Posted by JOe335i

From what i have learned, there is no new turbos, but new Actuators.

People have to understand this isnt very serious, and has nothing to do with the cause of power/tunes and such. you might lose some low end power and boost response, and get a anyoing rattle sound, but thats about it ,wont do much harm. at least the N54 can talk and tells us, HEY MY actuator is broken, rattle, rattle, rattle. lol

i agree, i think it is an annoying, but benign sound

[Bubbles]

Originally Posted by stressdoc

What I am hoping for, should my wastegates eventually prove faulty, is to get the turbos replaced with the newer, more durable version. That should result in an engine that will go 250k miles without major repairs. Everything else seems relatively bulletproof about the major engine internals.

Stressdoc, a day or 2 of spirited driving (HPDE) will bring those wastegates to failure.

Originally Posted by jadeddjay

do you have anything official to back that up? i just got my car back from wastegate repair. sounds better but the ticking isnt completely gone. now what? ive had to cite SIBs to get anything done with my dealer

also i think there are new turbos:
http://www.e90post.com/forums/showthread.php?t=160657

Revised turbos are being used for repairs.

You should not have any ticking after a wastegate replacement. The tech may not have adjusted the wastgates correctly, so no seal. I had a compression/pressure check run three times: (1) pre-wastegate replacement; (2)post-wastegate replacement; and (3) post-turbo replacement. You should not hear "ticking" after the car is warm.

[oddjob2021]

Originally Posted by jadeddjay

do you have anything official to back that up? i just got my car back from wastegate repair. sounds better but the ticking isnt completely gone. now what? ive had to cite SIBs to get anything done with my dealer

also i think there are new turbos:
http://www.e90post.com/forums/showthread.php?t=160657

wow... the ticking isn't gone? how lame... i thought BMW would fix it?

[JOe335i]

did they replace both Actuators on your turbos? the front and rear.

From what i have seen the turbos DO NOT make the ticking sound, and replacing them will not help, as seen already from a few members, specifically one who was denied warranty because of his mods, bought new turbos since bmw said there turbos are blow and making a ticking sound, lmaf0o dumbass, he payed for changing the turbos and the ticking sound was still there after the repair.

[adc]

Originally Posted by stressdoc

That should result in an engine that will go 250k miles without major repairs. Everything else seems relatively bulletproof about the major engine internals.

I'd love to believe that completely... in fact I'll probably be banking on it next year, when I plan to take delivery of a 135i.


But the signs are not encouraging - for instance, my 335i consumes a lot more oil than any of my previous cars so far. I think around 2 quarts in the past 6-7k miles (including one HPDE).

I truly hope that by summer of next year, all the problems with this engine will have been truly sorted out...

[jadeddjay]

Originally Posted by Bubbles

Stressdoc, a day or 2 of spirited driving (HPDE) will bring those wastegates to failure.



Revised turbos are being used for repairs.

You should not have any ticking after a wastegate replacement. The tech may not have adjusted the wastgates correctly, so no seal. I had a compression/pressure check run three times: (1) pre-wastegate replacement; (2)post-wastegate replacement; and (3) post-turbo replacement. You should not hear "ticking" after the car is warm.

i am gonna go talk to them on thursday
the rattle is still there... it sounds ok when the engine is cold but gets worse when its warm

i will find out exactly what they did.
what am i supposed to look for with a pressure test? will they do that under warranty?

[bmrm396]

so basically what were gettin at is if your a spring '07 build, count on them goin down

im about to say thank god im an Oct '07 build but i dont wanna jinx myself ha

[Bubbles]

Originally Posted by jadeddjay

i am gonna go talk to them on thursday
the rattle is still there... it sounds ok when the engine is cold but gets worse when its warm

i will find out exactly what they did.
what am i supposed to look for with a pressure test? will they do that under warranty?

The tech will drop the cats off and run a pressure test to check for a good seal. I imagine your car may need a simple adjustment, otherwise your turbos may need replacing.

[val3ntin3s]

sep '06 took it in to service, it went away, and then after a few weeks noticed it again only when the engine is decelerating and passing the 3200rpm mark....

[jadeddjay]

Originally Posted by Bubbles

The tech will drop the cats off and run a pressure test to check for a good seal. I imagine your car may need a simple adjustment, otherwise your turbos may need replacing.

does a pressure test require the engine to be lifted again?

[JOe335i]

Mr.5?

[Bubbles]

Originally Posted by jadeddjay

does a pressure test require the engine to be lifted again?

Partially...

[JOe335i]

Changing the turbos isnt gonna stop the ticking noise, unless the turbos come with new Actautors.In which case is the only way it will fix this problem since the turbo itself doest not create this sound.
if the dealer did change one actuator, then there is still one left to make the noise, i have talked with two members in which they said there actuator were changed, and the noise(ticking) was still present. they looked on there service log, and only one was changed which means there is another Actuator which was making the noise.

all the dealer has to do is remove the DP's, pressure the Actuator to see if the wastegate are closing all the way. simple test.

the software update in which keeps the wastegates open longer, which is the suppose cure for the ticking noise from the wastegates, is just a band aid, and with the wastegates staying open longer(which stops the wastegate from ticking), the LAG generation has started.

[oddjob2021]

Originally Posted by JOe335i

Changing the turbos isnt gonna stop the ticking noise, unless the turbos come with new Actautors.In which case is the only way it will fix this problem since the turbo itself doest not create this sound.
if the dealer did change one actuator, then there is still one left to make the noise, i have talked with two members in which they said there actuator were changed, and the noise(ticking) was still present. they looked on there service log, and only one was changed which means there is another Actuator which was making the noise.

all the dealer has to do is remove the DP's, pressure the Actuator to see if the wastegate are closing all the way. simple test.

the software update in which keeps the wastegates open longer, which is the suppose cure for the ticking noise from the wastegates, is just a band aid, and with the wastegates staying open longer(which stops the wastegate from ticking), the LAG generation has started.

so how much do you think, out of pocket, it would be to fix the actuators? or is there more to fix? the wastegate too?