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      02-26-2024, 08:28 PM   #10
vib
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Drives: 2017 430i
Join Date: Feb 2024
Location: Tampa. FL

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Quote:
Originally Posted by vib View Post
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!
12.5mm x 1.5mm oring from Amazon fit well, but the same size oring from fcp euro was too big. Maybe fcp sent me the wrong size.

The hardest part of this job was removing the bottom turbo coolant feed line. I accidentally bent the metal bracket for the T-30 screw while prying with a screwdriver so be careful when prying on this area. Also, have a container ready to catch the coolant that will spill out when you remove that bottom line.
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