The oil leak drips onto the exhaust manifold and smokes. Just did the valve cover on the drivers side but im still having the same problem leak. Bought a small mirror so i could see back there and right next to the cam cap ( which also has a slight leak ) theres a threaded hole in the corner right below where the valve cover meets. It looks like the oil is leaking out of this hole. First , what is this hole and its purpose? I have read about and watched a few videos on oil leaks on this engine and i havent heard anyone mention a possible oil leak from this hole, or that it was even there.
Another question is since the cam gasket is inside the valve cover , what makes the cam gasket leak different from just a regular valve cover leak?

sorry if some of this questions sound ridiculous but im a complete car noob. thanks in advance for reading and making an effort in helping me fix this extremely annoying problem

98 a4 2.8L Q