07-15-2020, 12:43 PM | #2 |
Car Hypochondriac
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Drives: 2014 335i M-Sport Estoril Blue
Join Date: Feb 2017
Location: Sterling, VA
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This is well known. The common cause of this is oil leaking onto the belt/tensioner from the oil filter housing gasket.
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07-15-2020, 01:59 PM | #3 |
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Let us know what the wallet damage looks like. Sorry, man.
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2014 335xi M-Sport 6MT: Estoril Blue II, MHD Stage 2+ , Dinan Exhaust, Dinan CAI, ER Catted DP, ER Chargepipe, AA FMIC.
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07-15-2020, 02:13 PM | #4 | |
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I caught it early enough, so just a new few things and back to normal. |
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07-15-2020, 02:13 PM | #5 | |
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Quote:
if substantial oil contaminated your belt, replace the belt. if you have excessive movement of the tensioner, then replace the tensioner.
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M235i rwd 6mt
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07-15-2020, 02:14 PM | #6 | ||
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07-15-2020, 03:53 PM | #8 |
Major General
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I would also like to see a video of how your belt/tensioner/crank pulley look after replacement. I brought my car in for BMW to look at this (see video and post here of the 'before' https://f30.bimmerpost.com/forums/sh...1487648&page=3) and they said they replaced the idler pulley. Afterwards, it looks exactly the same as the video there. However, i have seen other videos where the 'after' looks rock solid.
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