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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 > Transmission help



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      03-30-2011, 10:49 PM   #23
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It seems like everyone who has talked about this had their transmission replaced. I will probably take my mods off and take it in. I am going to leave the downpipes in though since they do not effect the transmission.
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      03-30-2011, 10:57 PM   #24
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Quote:
Originally Posted by gbreeE90 View Post
It seems like everyone who has talked about this had their transmission replaced. I will probably take my mods off and take it in. I am going to leave the downpipes in though since they do not effect the transmission.
IMO you should take out ALL the mods, the last thing you want is for them is to see the dp and void the powertrain warranty which includes the transmission.
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      03-30-2011, 11:00 PM   #25
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Originally Posted by Beemw335 View Post
IMO you should take out ALL the mods, the last thing you want is for them is to see the dp and void the powertrain warranty which includes the transmission.
I have a reason not to worry about that, but I am not going to post it here. But if I find the time I may take them off. Technically they would have to prove the downpipes caused the problem anyway.
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      03-30-2011, 11:22 PM   #26
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Quote:
Originally Posted by gbreeE90 View Post
I have a reason not to worry about that, but I am not going to post it here. But if I find the time I may take them off. Technically they would have to prove the downpipes caused the problem anyway.
Take them off. If there was a possibility my transmission was about to get replaced there is no way in hell I would leave any HP mods on my car.
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      03-31-2011, 08:08 AM   #27
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I too feel like I have a similar issue. Only on light shifts too (automatic). I'm at 46k miles. Let me know what the outcome is because I'm curious.
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      03-31-2011, 11:12 AM   #28
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Originally Posted by JTO24 View Post
I too feel like I have a similar issue. Only on light shifts too (automatic). I'm at 46k miles. Let me know what the outcome is because I'm curious.
It seems most people with this problem have had their transmissions replaced. I will probably won't have time to take it in for a few weeks because I have so many mods to take off.
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      02-06-2013, 06:50 PM   #29
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Old thread, but any update on this? I'm noticing slight slip only occasionally on higher gear shifts with light throttle. Car is approaching 80k miles. (6AT, obviously)

Haven't changed tranny oil yet, thinking of doing that next then taking into dealer. Only 6 mos left on CPO warranty
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