Volvo S80 '2000 Turbo Return Line Leak?

[sparro]

Hello.

My car leaks several oil drops a day when parked. I suspected the turbo return line. From the bottom of the engine, I observed that the two screw area for the driver turbo return line was clean (no leak). I was not able to observe lower the o-ring area, the bottom end of the return line pipe into the oil pan.

When I start the engine at park, after about 5 min, white smoke will arise from the area where the driver side turbo return line is located.

Can I conclude that this is the turbo return line leak? Is there any other that I should check? The oil seems to be every where. I just want to find the one main area and fix it.

Thanks.