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You need to replace all of the PCV crankcase breather hoses. ONLY BUY BMW OEM:
a) Two Filtered Air Ducts(Bank1 and Bank2) (Part #13717589651, 13717589652)
b) One crossover hose (Part #11157595188)
c) Need two vent pipes(diagram, Part 1 and 2)(Part #11157589989, 11157589992)
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2007 BMW Z4 3.0si - Hellrot
2010 BMW X6 M - Space Grey
Last edited by 1er_vert; 08-30-2025 at 01:31 PM..
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