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      07-01-2012, 07:48 PM   #1
mineo77
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Unhappy Bye bye turbo @ 33K

Faulty turbo thread

So the past 2 months I have been having some issues with my turbo. It all started with that god awful "siren" sound while in 1-2 gear below 2.5K RPM. Lots of post about this noise which eventually turns into a turbo whistle. Lots of folks say its normal but it definitely is NOT. (assuming your car has NEVER done this). I started then to notice carbon soot in my garage from start up and more than normal oil consumption. Car was brought to the dealer and of course they told me it was normal and I was being too sensitive. About 3 weeks later it just kept getting worse...so what do i decided to do..test it with some very spirited driving.

I got away with a few days of driving hard and running boost up. my blow off valve was spitting more and more oil and the noise of the turbo was loud and sounding horrible. Then all the sudden at boost and doing hard acceleration in 4th gear - boom!!! Power dropped immediately, max boost was cut in half and when I pulled in to inspect it sounded like I had a BB stuck in my downpipe followed by white / blue smoke out of my tail pipe. Car was towed to the dealer and I am awaiting the news.

Just a warning for all those that are getting that "siren, whine" all of the sudden. This seems to be more and more common on threads for cars at 30-40K miles. I will keep this post updated.
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      07-02-2012, 03:59 AM   #2
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Subscribing. So you're saying to be watchful of the whistling sound coming form the turbos? My car is past the 50,000 mile mark right now, so it is a big concern to me hearing this. Is there a way to check them from the hot side of the turbo to see if there is play in the shaft? How hard is it to remove the turbos for inspection?
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      07-02-2012, 08:09 AM   #3
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Things like this scare at me at 75K miles.

Also at least you still have a warranty!
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      07-02-2012, 06:33 PM   #4
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UPDATE: The diagnosis is going slow since each step they need approval from BMW NA. At this point they have found my wastgates to be destroyed which would help explain the rattling / bb sound from the turbos. does not fully explain the white / blue smoke out of the tail pipes and they are waiting to get the OK to take a look at the turbos. They feel confident no damage to the engine was done.
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      07-03-2012, 10:20 AM   #5
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i thought there's a class action lawsuit and tsb extending our turbos warranties?
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      07-03-2012, 10:32 AM   #6
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I had mine replaced at 32k for that same whistle/odd noise. But here's what worries me, since they've been replaced I haven't modified the car at all. (Except to log boost because they weren't installed properly after being replaced. I found that I was only getting 2 PSI, which they went back and retightened the connections to fix) So here I am with replaced turbos and a stack of papers from what my dealership did under warranty to replace them that's about an inch and a half thick. So here's the worrisome part, the new turbos have already started to do the whine/whistle(not too loudly, but they were completely quiet when I got them) and its only been about 400-500 miles since replacement. The upside is until I heard these noises the car felt like a N52 like it was lacking mid-range torque, now it's starting to feel normal again.
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      07-03-2012, 11:14 AM   #7
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I had mine replaced at 49,967 back in March. same issue ..wastegates and turbos replaced under warranty.
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      07-03-2012, 11:15 AM   #8
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I had mine replaced at 49,967 back in March. same issue ..wastegates and turbos replaced under warranty.
Has your issue resurfaced in the slightest?
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      07-03-2012, 11:56 AM   #9
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TSB Warranty Status

Quote:
Originally Posted by nnguyen04 View Post
i thought there's a class action lawsuit and tsb extending our turbos warranties?
Yes, can someone in-the-know please provide the bottom line summary with regards to turbo replacement under warranty per the old and new TSBs affecting waste gate failure. Also does is cover other parts of the turbo that fail or just the waste gates?
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      07-03-2012, 08:34 PM   #10
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dealer still at this point waiting to hear from BMW NA. I spoke to the GM at the dealership and explained that they either need to replace my turbos with wastegates or else they will be repeating this work cause I am gonna drive the piss out the car and blow up the turbo...no seriously that is what I said.
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      07-05-2012, 12:33 PM   #11
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BMW NA has voided my warranty due to my exhaust which has caused my turbo and wastegates to fail.

And so it begins...
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      07-05-2012, 12:52 PM   #12
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Quote:
Originally Posted by mineo77 View Post
BMW NA has voided my warranty due to my exhaust which has caused my turbo and wastegates to fail.

And so it begins...
So there saying that since your more efficient and better flowing exhaust killed your turbo's by reducing back pressure... Good luck man!
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      07-05-2012, 01:53 PM   #13
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Best of luck, might be an excuse to upgrade to RB's?

Quote:
Originally Posted by mineo77 View Post
BMW NA has voided my warranty due to my exhaust which has caused my turbo and wastegates to fail.

And so it begins...
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      07-05-2012, 01:55 PM   #14
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I checked with my SA today and the only TSB for the 135i on his computer was the HPFPs. He did not see a warranty extension, for turbos or any other part for that matter.

Quote:
Originally Posted by Pablito1702 View Post
Yes, can someone in-the-know please provide the bottom line summary with regards to turbo replacement under warranty per the old and new TSBs affecting waste gate failure. Also does is cover other parts of the turbo that fail or just the waste gates?
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      07-05-2012, 04:35 PM   #15
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update: TC report filed, not PuMA. Dealer is having shop manager discuss case and recommended I do not take my car back yet. They now mentioned that since I do have some mods that it was possible to void warranty not that the warranty has been voided.

drama...just fix my fucking turbos
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      07-06-2012, 02:20 AM   #16
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Quote:
Originally Posted by mineo77 View Post
update: TC report filed, not PuMA. Dealer is having shop manager discuss case and recommended I do not take my car back yet. They now mentioned that since I do have some mods that it was possible to void warranty not that the warranty has been voided.

drama...just fix my fucking turbos
TC and PuMA, What kind of reports are those?
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      07-06-2012, 08:35 AM   #17
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Quote:
Originally Posted by trickcruiser View Post
So there saying that since your more efficient and better flowing exhaust killed your turbo's by reducing back pressure... Good luck man!
I really hate this attitude.

Look at it from BMWs end. They don't know what grease money did the work on the car. They have the potential to void the warranty because the turbine could have damaged during installation - not necessary because he put in a nonBMW part. If it was knocked out of allignment or whatever by the guy putting the DPs in then they shouldn't cover it. And that's totally fair.

When you mod you have the potential to have your warranty voided. It sucks. But it's nothing malicious on BMW's end - in fact you were the one who broke the agreement. And I really don't understand why everyone on this board thinks that a warranty is a right

Because it isnt
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      07-06-2012, 08:57 AM   #18
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Quote:
Originally Posted by BrokenVert View Post
I really hate this attitude.

Look at it from BMWs end. They don't know what grease money did the work on the car. They have the potential to void the warranty because the turbine could have damaged during installation - not necessary because he put in a nonBMW part. If it was knocked out of allignment or whatever by the guy putting the DPs in then they shouldn't cover it. And that's totally fair.

When you mod you have the potential to have your warranty voided. It sucks. But it's nothing malicious on BMW's end - in fact you were the one who broke the agreement. And I really don't understand why everyone on this board thinks that a warranty is a right

Because it isnt
Not what I have been implying. If you follow a PuMA report you will see that there is an unusual amount of N54's that are having wastegates / turbos replaced @ 30K - 45K. So yes, I agree but these things need to be taken into consideration.

PS. If you know somebody that could manage to mess up your turbos while bolting on a DP run away fast! that is almost unheard of in these parts.
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      07-06-2012, 09:31 AM   #19
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Quote:
Originally Posted by BrokenVert View Post
I really hate this attitude.

Look at it from BMWs end. They don't know what grease money did the work on the car. They have the potential to void the warranty because the turbine could have damaged during installation - not necessary because he put in a nonBMW part. If it was knocked out of allignment or whatever by the guy putting the DPs in then they shouldn't cover it. And that's totally fair.

When you mod you have the potential to have your warranty voided. It sucks. But it's nothing malicious on BMW's end - in fact you were the one who broke the agreement. And I really don't understand why everyone on this board thinks that a warranty is a right

Because it isnt
Agree 100%. Well said.
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      07-28-2012, 12:06 PM   #20
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oh the ignorance of these boards just gets better and better
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      07-28-2012, 12:38 PM   #21
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Mods you listed you have in your profile that affect the motor and its components in one way or another:

HPF full exhaust with resonator
Macht Schnell cattless downpipes
HPF Intercooler anodized
KN drop in filter
HPF oil catch can
Vishnu Meth kit
ER charge pipe / Synapse BOV

Im on the fence here... I am with you. I know the hazards of modding a car, the risk of upping the boost, changing the plumbing, tuning the car to perform above the recommended factory ratings, racing and beating the piss out of the car, etc. The Dealer with just those mods alone can conclude pretty quickly that increasing the boost alone adds more stress to the turbines, removing the cats in the downpipes alters the air/fuel ratios, tuning the car changes the way it operates outside of spec, the meth kit and its affects on the compnents, etc etc. Personally, the dealer dosnt owe you a single thing and has every right to deny you any work or parts related to the motor and turbines...

BUT... It's also known that there is a huge issues with these turbos, they had an issue on stock cars, there is extended coverage for them, the wastegates are known issues too. So at the same time you have every right as a consumer to deamnd they replace the turbos under that clause. I would fight BMW all the way on this.

Yes, I am playing devils advocate, lol. I hope everything truly works out for you and they agree to change them at no cost to you. But c'mon, ANY turbo on ANY car will fail eventually if brought past their normal build specs. These are cheap factory turbos. Not some over built turbonetics or garrets here. just saying. It will happen again, and again, etc.

Either way, I think we can all take away from this is this... Turbos are shot? Put your shit back to completley stock, un-tune it, then roll it into the dealer. Im not one to tell someone to try and commit fraud, i mean, thats the reason why many dealer give the real issues such a hard time because of al lthe fraud that goes on, but in a case where they have a knon issue like the turbos it should be done for you as a one time gesture. Sucks. I know. Raise hell OP and get them to do it. Good luck and I really do hope it works out for you in the end.
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      07-28-2012, 03:51 PM   #22
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Just to add to the statistics:

My turbos were replaced also.

My car went into limp mode and one of the codes was turbo leak. Apparently a waste gate was stuck partially open and the turbos were damaged. I was told they replaced a pressure sensor, the vanos solenoids, both turbos and waste gates. My warranty was about to expire in less than 1,000 miles!
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