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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 adjustment revolutions?



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      03-09-2013, 08:49 PM   #1
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Wastegate adjustment revolutions?

Hey guys, I started getting an 03FF target boost unachievable and I had extreme wastegate rattle, so I tightened my wastegate 3 revolutions, I started her up and checked the sound after every revolution. After 3 turns it is still extremely bad, should I keep going by half a rotation or what? This is only temporary until I upgrade..
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      03-09-2013, 09:19 PM   #2
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I would and then log wgdc see how it looks but im no tech .might be a reason im unaware of other than over tightening that my cause an issue.but pretty sure your good.
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      03-09-2013, 09:24 PM   #3
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Okay, at 3 revolutions I drove it and the turbos are still lagging but I don't get 03FF code anymore
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      03-09-2013, 09:50 PM   #4
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i got no codes but mine wastegate actuators are bad anywy i can tighten those $$$$$$ to replace
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      03-09-2013, 10:58 PM   #5
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Anybody else?
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      03-10-2013, 09:00 AM   #6
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How many miles? Anyone under 80k or with CPO that can get 30FF code gets new turbos.
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      03-10-2013, 10:46 AM   #7
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Quote:
Originally Posted by zanelefko
Anybody else?
I'm out if warranty for the turbos bro, the bulletin came out when I hit 99k :/
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      03-10-2013, 03:13 PM   #8
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What should my WGDC be?
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      03-10-2013, 06:17 PM   #9
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Well I tightened it another half a revolution with no luck, car still gets 03FF codes when I'm going WOT in third gear, I've checked for boost leaks and all my piping and clamps are tight....looks like I may need to get turbos sooner rather than later
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      03-10-2013, 06:34 PM   #10
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if the WGs are shot in the turbo than you need to change them. nothing you can do about it. happened many times.
time to ship them to Vargas for upgrade.
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      03-10-2013, 06:36 PM   #11
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I'm waiting on stage 2 replacements, may as well lol
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      03-11-2013, 01:23 AM   #12
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My wastegates rattle like crazy and it pisses me off. I'm at 45k miles and I took my car to the dealership but they said they couldn't do anything for me because I didn't have the under boost code. Could turning the nuts on the actuator arms trip the code? Or is there anyway I could fix this stupid rattle?
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      03-11-2013, 10:14 AM   #13
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Well I turned mine 4 revolutions with nothing, if you loosened it they could for sure tell, I wouldn't try to make it worse. Just wait, it will get worse I promise lol
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      03-11-2013, 11:22 AM   #14
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Quote:
Originally Posted by Tdanderson View Post
My wastegates rattle like crazy and it pisses me off. I'm at 45k miles and I took my car to the dealership but they said they couldn't do anything for me because I didn't have the under boost code. Could turning the nuts on the actuator arms trip the code? Or is there anyway I could fix this stupid rattle?
You don't need any codes. Go to another dealer.
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      03-11-2013, 12:37 PM   #15
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Quote:
Originally Posted by David1 View Post
You don't need any codes. Go to another dealer.
I agree, keep bugging the dealer. I did not have codes and they changed mine based on the sound.

every dealer is different, but the pestering might be worth it.
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