The Blue Phoenix - E46 325i

[Jake]

No need for a new driveshaft.

It's the center support bearing and/or guibo.

Guibo: <!-- m --><a class="postlink" href="https://www.fcpeuro.com/products/driveshaft-flex-disc-guibo-bilstein-26111209168">https://www.fcpeuro.com/products/drives ... 6111209168</a><!-- m -->

CSB: <!-- m --><a class="postlink" href="https://www.fcpeuro.com/products/bmw-driveshaft-center-support-with-bearing-e46-febi-26127501257">https://www.fcpeuro.com/products/bmw-dr ... 6127501257</a><!-- m -->

You can see the guibo (look at the link to see what a good one looks like) where the driveshaft mates with the transmission. As they fail, they get big cracks in them. Some will even start to show the threads within the rubber, like this:



Guibo is a pretty quick fix. CSB is more involved but can be DIY'd in a few hours.