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      03-30-2023, 08:18 AM   #2
jadams161
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Drives: 2009 E93 335i. 2011 E90 328xi
Join Date: Apr 2021
Location: Upstate New York

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The ATC 300 does go bad...usually due to low fluid. They only have about 16 oz of fluid inside. I just replaced mine at 138k..wasn't horrible but it was run for a long time by last owner with almost no fluid inside and had some bearing noise. If you are going to replace the Xcase I would say to just buy whatever you need to go full RWD.
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