Engine Mechanical problem
2003 Mercedes Benz SL55 V8 Two Wheel Drive Automatic

i have a 2003 mercedes SL55 AMG. its the v8 supercharged engine. there is some lifter noise. i have no repair info available to me. i have the valve covers off the engine. i dont see the little plastic oil squirters like in the SL500's. where do i go from here and what do i need to do???