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      02-24-2024, 08:14 PM   #9
vib
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Drives: 2017 430i
Join Date: Feb 2024
Location: Tampa. FL

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I'm in the middle of this job right now...What size is the o-ring for the bottom line that goes to the turbo? I removed the old o-ring and I have a new 12mm x 1.5mm o-ring but it seems way too big. The new coolant return line that connects to the auxillary coolant pump comes with a yellow colored o-ring.

Thanks!
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