Mercedes Benz repair: 2002 mercedes C230 Kompresser, 2002 mercedes c230, timing chain cover

Question
I was told the upper timing chain cover is leaking, they said it is plastic and has a O ring inside.Can you tell me how to change the gasket. 2, can you e-mail me a diagram of it. Thank You, Charles

Answer
I thing that someone is lying to you. This engine is a inline 4 engine with a supercharger. The entire front cover is metal not plastic. The only oil leaks on that would be the camshaft advance solenoid on the sensor on the drivers side the of the cover.
Have you pinpointed the leak?