Hi, my 2000 S80 turbo model seems to have developed some engine oil leaks. It has 73000 miles and has had good service with Mobil 1 synthetic 10-30 synthetic every 4000 miles. Oil appears to be leaking from the front of the engine and turbo return lines. I've read many posts regarding the vent box and would like to dive into this. What items do I need to buy in advance as I live in a rural area without volvo parts available? Tech mentioned having a special tool to do this but I could not figure out which tool he is referring to. Is there a post regarding the r&r of this vent system? Many thanks. Tony

 

I believe FCPgroton.com sells a kit.

The special tool that is needed is a funky looking wrench. But you can break the old vent box out and then cut a groove in the aluminum bracket then install the new one.
The intake manifold needs to come off as well.