Well after pressing the clutch in and the air cond turning off in the Nizpro car I thought I better investigate. So I found the earls kit that had done approx 2000ks had started to leak oil at the crimp fitting as it entered the oil filter. The oil had ran down the inside of the clear outer sleeve and as the line had rubbed on the water line and had holed, the oil dripped down onto the air cond connection. The above pic shows the whole kit with brown oil stained line at the bottom of the pic The above pic shows the crimp that failed and started to leak The above pic shows the area in the clear sleeve that rubbed through allowing the oil to escape The above pic shows how I installed my line on my F6. The oil line that failed was ran on top of the water line and rubbed through the clear sleeve at the bottom. We have now seen may of these crimped lines fail , especially adjacent to the turbo. Do not order these crimp style.