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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > *Wastegate Ticking Noise Found*



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      04-12-2008, 05:37 PM   #133
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Quote:
Originally Posted by Mr. 5 View Post
For me, it was only the linkage of the rear wastegate that was loose, so I only needed one washer.

Remember though that for right now I am calling this a temporary fix.
If the linkage never becomes any looser in the future then this will be a permanent fix until I decide if I ever want this matter addressed by BMW.

If I would have gone into BMW when I first heard this problem, they would have replaced my wastegate actuators, but based on what I found, new wastegate actuators would not have fixed the problem.

They need to replace the exhaust portion of the turbo that includes the actual wastegate.
Mr. 5: can you post a picture of exactly where you've placed this washer?

Thanks,
Rob
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      04-12-2008, 05:43 PM   #134
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Useful thread, nice job!
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      04-12-2008, 09:42 PM   #135
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Hey Mr 5...Can you post up the gap pics of the before and after your c clip fix, it would give us a better understanding of what u did and how it fixed that gap...I know hearing your video there is a significant difference, but can you post up the pics of where u place the c clip..
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      04-12-2008, 09:51 PM   #136
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Quote:
Originally Posted by cn555ic View Post
Hey Mr 5...Can you post up the gap pics of the before and after your c clip fix, it would give us a better understanding of what u did and how it fixed that gap...I know hearing your video there is a significant difference, but can you post up the pics of where u place the c clip..
+1 i want to print out the before and after pics and show them to my dealership, cause they apparently have no idea how to fix my car after taking it 3 times to them.
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      04-12-2008, 11:27 PM   #137
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Quote:
Originally Posted by cn555ic View Post
Hey Mr 5...Can you post up the gap pics of the before and after your c clip fix, it would give us a better understanding of what u did and how it fixed that gap...I know hearing your video there is a significant difference, but can you post up the pics of where u place the c clip..
Here you go. I was messing around with c clips but I was having a hard time filing down the clip to the perfect width to match the space that I have. This is why I went with the feeler gauges instead. The before pic is on the first page.

Quote:
Originally Posted by AU335 View Post
+1 i want to print out the before and after pics and show them to my dealership, cause they apparently have no idea how to fix my car after taking it 3 times to them.
Do it man, because I'm so fricken stoked right now.
This is what I did that is proven to work.

-I went to Harbor Freight and got a cheap set of Feeler Gauges.
-I found the measurement of the space that I have (In my case, I have a space of .43 mm)
-I cut a piece of the .43 mm feeler gauge.
-I cut a "U" piece out of the feeler gauge so the "shim" will fit around the rod that is connected to the wastegate.
-Make sure that the shim is not too tight or the wastegate will stick and this is not good.
-Now start your car, rev it up, exit the car, and jump up and down because you will here pure engine and no ticking.



I went driving after the feeler gauge was installed. I drove it hard and I drove it soft. I made sure the engine was hot. I got gas and I checked the wastegate rod before and after I turned the engine off to make sure the rod was moving. I went a couple more places and the same thing.
I'll keep checking for the next week here and there to make sure everything's still working alright.
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      04-12-2008, 11:30 PM   #138
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Good idea on thinking outside the box, Mr. 5!

For the local guys.......drive to Mr. 5 BMW to get it done. JK.
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      04-12-2008, 11:33 PM   #139
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Originally Posted by wj4 View Post
Good idea on thinking outside the box, Mr. 5!

For the local guys.......drive to Mr. 5 BMW to get it done. JK.
Yep, I'll charge $200 per person.
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      04-12-2008, 11:48 PM   #140
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Here's what my shim looks like that fills up my space.
This isn't the exact one that's in my car, but they look identicle.
I made this one but this was from a feeler gauge that was .48 mm thick and I couldn't even move the wastegate.
This is why I stressed about if the shim is too thick.
It could stick or the wastegate won't move like it was intended to.
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      04-14-2008, 11:00 AM   #141
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Hey AU335,
Please let us know what happens when you go back to the dealer with this.
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      04-14-2008, 11:22 AM   #142
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Quote:
Originally Posted by Mr. 5 View Post
Hey AU335,
Please let us know what happens when you go back to the dealer with this.
Definitely will do! Headed there this week
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      04-14-2008, 11:29 AM   #143
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Quote:
Originally Posted by AU335 View Post
Definitely will do! Headed there this week
I'm so stoked man!
Seriously, It sounds like someone gave me a brand new engine.
Soooo smooth!
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      04-14-2008, 11:48 AM   #144
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Here's a thread on the factory fix.

http://www.e90post.com/forums/showthread.php?t=133464
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      04-14-2008, 12:22 PM   #145
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Quote:
Originally Posted by BKLYN335xi View Post
Here's a thread on the factory fix.

http://www.e90post.com/forums/showthread.php?t=133464

If you have read this thread then you would have known that the dealer fix would have not fixed my problem.
If the dealer would have replaced both actuators on my car, the ticking would still be there. My actuators are completely fine.

If you have the same exact problem as me then you're going to wait a week for them to repair it, get into your car and still hear the ticking noise.
Or, they will have your car for much longer because they won't know what to do except for replacing the eintire turbo/exhaust section.
Here's what I posted earlier in the thread, which includes the TSB:
http://www.e90post.com/forums/showpo...6&postcount=79

I responded in your thread, but the fix that you showed is not my problem.
My problem is due to the linkage of the actual wastegate coming loose.
It has nothing to do with the wastegate actuator.
I truly believe that BMW is not getting it right here.
I have a feeling that other people are having the same problems as myself.
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      04-14-2008, 12:46 PM   #146
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Quote:
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My problem is due to the linkage of the actual wastegate coming loose. It has nothing to do with the wastegate actuator. I truly believe that BMW is not getting it right here. I have a feeling that other people are having the same problems as myself.
We have the exact same problem, that's why I inserted the cross link to the new "fix" thread. The fix according to the repair sheet my SA showed me this morning is replacement of both front and rear wastegate actuators and actuator arm assemblies.

Maybe I'm missing something here, but I don't think so. I'll post the outcome of this fix when I get the car back. I hope they got it right.
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      04-14-2008, 01:36 PM   #147
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I really don't see how they can repair the actuator arm since the arm is welded to the actual wastegate rod that rotates the wastegate.
The arm is welded to the rod (first pic) and the wastegate is pressure fit to the rod on the inside of the turbo (second pic yellow arrow).
Check out the pics.
The yellow arrow is indicating a spot that I thought might have been adjustible, but there is nothing to adjust.

This is why I'm thinking that the only fix would be getting a complete new turbo.
Hopefully I'm wrong.

I'm going to wait for more and more people having this problem so I can make sure that I know exactly what's going to happen, and I will be assured that the problem will be fixed in a timely manner.

Quote:
Originally Posted by BKLYN335xi View Post
We have the exact same problem, that's why I inserted the cross link to the new "fix" thread. The fix according to the repair sheet my SA showed me this morning is replacement of both front and rear wastegate actuators and actuator arm assemblies.

Maybe I'm missing something here, but I don't think so. I'll post the outcome of this fix when I get the car back. I hope they got it right.
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      04-14-2008, 02:34 PM   #148
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Great pics. I'm wondering if a large chunk of the 16 hours is remachining the turbo with an entirely new wastegate. Even giving 4 hours to remove and reinstall both turbos would leave 6 hours for each turbo for machining.

BMW must be trying to avoid the cost of supplying and replacing 10,000+ turbos.
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      04-14-2008, 03:00 PM   #149
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I don't know.
I didn't think that they were replacing the wastegate arms.
I thought they were only replacing the wastegate actuators.
Let us know.

Quote:
Originally Posted by BKLYN335xi View Post
Great pics. I'm wondering if a large chunk of the 16 hours is remachining the turbo with an entirely new wastegate. Even giving 4 hours to remove and reinstall both turbos would leave 6 hours for each turbo for machining.

BMW must be trying to avoid the cost of supplying and replacing 10,000+ turbos.
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      04-14-2008, 11:14 PM   #150
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CONGRATS Mr 5 - awesome job!!!!!!

This is the reason this forum just rocks!!!!
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      04-17-2008, 02:48 PM   #151
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I have the ticking sound and a vibrating sound.
It is awesome that you fixed it yourself but Im not daring enough to do that myself. Until BMW figures out there own fix I will live with them having my car for several days.
I think they are planning to replace both my turbos and diverter valves because they think the ticking is coming from the diverter valves.
Think I will just buy the Forge Diverter Valves. Will those valves help protect the turbos better; especially with extra boost?
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      04-17-2008, 06:16 PM   #152
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So they took my car this morning, and after repeated promises about giving me my car back.....low and behold, they needed to change both actuators and not only one. So he said that since they haven't pulled apart the car, I can get it back. But the other actuator is apparently on national backorder (exactly in-line with what I have read on this forum) so I'll have to wait till next week.

I'm thankful at least that the wastegate isn't "stuck" and still moves freely. its just the actuator arm that is rattling - I just hope it does not come apart on my roadtrip to the Bay Area this weekend...that would totally suck.
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      04-17-2008, 09:16 PM   #153
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Quote:
Originally Posted by Cool Car Dave View Post
I have the ticking sound and a vibrating sound.
It is awesome that you fixed it yourself but Im not daring enough to do that myself. Until BMW figures out there own fix I will live with them having my car for several days.
I think they are planning to replace both my turbos and diverter valves because they think the ticking is coming from the diverter valves.
Think I will just buy the Forge Diverter Valves. Will those valves help protect the turbos better; especially with extra boost?
I really dont think its the diverter valves. on RHD cars like mine, the sound is distinctively on the right side and my diverter valves are on the right. I can honestly tell you its not your diverter. The mechanism of the diverter valve is such you wont hear this kind of sound. This is a rattling of something loose.
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      04-17-2008, 09:18 PM   #154
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Quote:
Originally Posted by elmariachi View Post
I really dont think its the diverter valves. on RHD cars like mine, the sound is distinctively on the right side and my diverter valves are on the right. I can honestly tell you its not your diverter. The mechanism of the diverter valve is such you wont hear this kind of sound. This is a rattling of something loose.
After hearing MR 5 video and his fix, I would have to agree that its not the Dvs for sure!!! Check out his video and his fix
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