If you don't recall the CCV hose being replaced, it's a very common issue that hits around 75K+ from what I can tell, and you should check it.

This looks worth it:

https://www.turnermotorsport.com/p-3...-335d-e70-35d/

Others use their own hose.

I bought this style from a different shop:

https://cascadegerman.com/product/cc...DSwVvhxHa_0s9E

Probably should inspect it.

A big leak at this hose would cause havoc for the CCV system, I would think.