What is this? Top front of motor, under coil pack. wobbly grindy noise comes from here plus you can see pully wobbling. Tried to wiggle it with motor off but solid. A few minutes before this noise started, I blew some sort of hose, looks like the hydraulic fluid area and then then other stuff started happening...


TIA

 

2001 A6 2.8 Quattro.

 

A lot of black fluid under the ps reservoir but the reservoir is full...

 

I was rolling down the highway and it sounded like I blew a tire...