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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 > How to fix wastegate rattle



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      04-14-2012, 09:08 PM   #1
Catalina Wine Mixer
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How to fix wastegate rattle

my buddys 335i's wastegate rattles on start up and sounds like a damn lawnmower is there any solution besides replacing the turbo. His warranty is up fyi.

thanks
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      04-14-2012, 10:18 PM   #2
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Does he have a tune of some sort?
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      04-14-2012, 11:19 PM   #3
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LOL... search...

A couple options:
1) Replace wastegates (and turbo assembly)
2) Adjust wastegate actuators (you can really only adjust the front one) - search Mr5's fix
3) PROcede has wastegate fix that works on some cars
4) I've heard JB4 improves wastegate rattle, and Cobb improved my wastegate rattle

Option 1 will fix wastegate rattle temporarily if at all, but it will come back.
Option 2 only works for some people and only for the front wastegate
Option 3 and 4 only work for some people, but the rattle is still there.

Learn to live with it.

/Thread
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Last edited by skim7x; 04-15-2012 at 08:44 AM.
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      04-15-2012, 05:41 AM   #4
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JB4 will help a bit with t he "rattle fix " option
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      04-15-2012, 08:50 PM   #5
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No tune
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      04-15-2012, 09:14 PM   #6
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Quote:
Originally Posted by skim7x View Post
LOL... search...

A couple options:
1) Replace wastegates (and turbo assembly)
2) Adjust wastegate actuators (you can really only adjust the front one) - search Mr5's fix
3) PROcede has wastegate fix that works on some cars
4) I've heard JB4 improves wastegate rattle, and Cobb improved my wastegate rattle

Option 1 will fix wastegate rattle temporarily if at all, but it will come back.
Option 2 only works for some people and only for the front wastegate
Option 3 and 4 only work for some people, but the rattle is still there.

Learn to live with it.

/Thread
+1
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      04-15-2012, 10:00 PM   #7
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never heard of it before, it new?
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      04-16-2012, 12:39 PM   #8
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i got waste gate rattle too!!! some guy told my i need 2 new turbos cause they are bad... is that true??
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      04-16-2012, 12:43 PM   #9
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Quote:
Originally Posted by hboss1217 View Post
i got waste gate rattle too!!! some guy told my i need 2 new turbos cause they are bad... is that true??

If that guy was your SA and they are free, then YES...it's true.
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      04-16-2012, 01:35 PM   #10
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Its a great reason to upgrade to a single turbo!! If not then with with options 3 and 4 and just live with it like to rest of us
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      04-16-2012, 02:01 PM   #11
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Quote:
Originally Posted by hboss1217 View Post
i got waste gate rattle too!!! some guy told my i need 2 new turbos cause they are bad... is that true??
I actually hope my rattle means this...my warranty company already approved new turbos if needed lol!
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      04-16-2012, 06:15 PM   #12
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rattle

So the rattle isn't causing any harm or anything?
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      04-16-2012, 07:31 PM   #13
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Quote:
Originally Posted by hboss1217 View Post
i got waste gate rattle too!!! some guy told my i need 2 new turbos cause they are bad... is that true??
No. You need new wastegates, but BMW gives you new wastegates by giving you new turbos.

Quote:
Originally Posted by nikitino25 View Post
So the rattle isn't causing any harm or anything?
No.
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      04-16-2012, 07:39 PM   #14
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I had the rattle, they replaced turbos under warranty and rattle came back. I've installed a procede v5, and adjust the opening and still rattle a bit on cold for about a minute and goes away. I have it set to 85%.
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      04-16-2012, 08:26 PM   #15
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Quote:
Originally Posted by skim7x View Post
No. You need new wastegates, but BMW gives you new wastegates by giving you new turbos.


No.
That's for the good info!!!! 1+ I feel better lol. I'm out of warranty.
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