Originally Posted by gello88
We know that the leak comes from behind the engine block, at the passenger side.
Start simple: The oil filter and oil pressure warning light sensor are in this area. Before you start pulling anything apart, I'd ensure your oil filter is tightened properly and has a serviceable gasket. The gasket should be changed out during each oil filter change. Oil from the filter can dribble down to the pan.
trace the source of any oil leak, clean and degrease the affected area and then look for the tell tale oil tracks.