Just took my 2000 s80 in for service (65,000k miles) and they said I had an "oil trap" leak. qouting labor of over $600 to fix. Can anyone tell me what this is and is it really that expensive to fix (parts quote was about $150). Not seeing any leaks on the driveway, so not sure how I would notice this on my own.

Thanks

 

It takes a while to leak down to the ground from where it is.
The intake manifold has to be removed to gain access to the breather box/oil trap.