Very light squeaking when idling, assuming it has to do with serp belt/tensioner as i’m at 53k miles (2011 328i). I plan on ordering them and DIY. What is the difficulty level on this? And how much should the package be (seen one around $80-90)
It helps to have a long breaker bar for the T60 driver that is needed to release the tensioner. Two people would make it easier to get the belt on/off while the other person releases tension on the belt, but I'm sure most of us have done it alone.
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