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      05-12-2012, 07:15 PM   #8
GMWNashville
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Drives: 16 F80, 12 F25, 06 E90 330i
Join Date: Jan 2008
Location: Nashville, TN

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from what i remember bmw extended the warranty on turbos to 8 years 82k or something weird like that. That being said-wastegate issues are related to the turbo itself because its not always the actuator itself causing the noise but the arm on the turbo causing the noise due to too much play in the bushing where it passes through the turbo.