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      12-02-2025, 01:49 PM   #6
greywing.wip
@greywing.wip
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Drives: 2012 135i M-Sport 6MT
Join Date: Aug 2025
Location: SF Bay Area

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Happened to me when I was replacing the pulley/belts. It was bound to happen according to all of the tutorials & posts so perfect opportunity to do some more maintenance & practice patience waiting a week for FCP to ship.

Also replaced the coolant reservoir hose while we're at it. Upper Rad Hose was Rein & Coolant Res Hose was Genuine BMW.

Really hope that all the coolant that was leaking in the meantime didn't ruin the parts around it though.

Good luck!
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