If the oil is dripping off the rear of the pan by the drain, there's a high probability that it's the turbo drain pipe seals. Take a quick general look up the back of the block, if the wetness starts below the turbo, that's the one. I just replaced both seals on my Saffron R, I recommend getting a nice ball end 5mm allen key for the job and being double jointed to get around the AG.