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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/Turbos



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      11-24-2011, 12:41 AM   #1
Eric335
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Drives: 2012 E92 AW M3 DCT
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2012 BMW M3  [10.00]
2007 BMW 335i  [7.99]
Wastegate/Turbos

Hey all,

i have a CPO 2007 335i, and always seem to "think" i hear wastegate rattle. I partly think its b/c of all the horror stories i hear on here

anyways,

how could i go about checking this? what exactly does it sound like? would it throw an engine light?
If in fact my wastegates are acting up, this means i need new turbos (right?), is that covered under the 120k miles HPFP warranty or the standard CPO warranty?

also,
is there a way to check if i have a drop in boost? car doesnt feel as quick lately


Thanks, i know this is a repost, the didnt come up with specific/useful results. Point me in the right direction if im missing something....
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