My son's 2006 S60 2.5T turbo has a leak. I suspect the return oil line, but the mechanic said he did not notice anything in that location. Does anyone else have any idea what it could be? I mean where the oil near turbo could be coming from.

 

first step is to clean off all the oil then do some driving and recheck to see if you can find a source (generally oil runs down but the oil return seal can make a huge mess). I've done this a couple times on an 850T - there's a simple $.10 seal with two 10mm bolts that holds the return line to the turbo then it runs up to the block. that's the seal that usually leaks... You can also replace the o-ring for where the return line goes into the block for $1.19 :-)

 

Yes, thanks. the FSP has the entire kit for the return oil line gasket. The mechanic said he did not remember seeing return line leaking, but it doesn't mean that it does not leak. We'll check it out.