after inspecting my plugs in my audi 1.8 se 1996 i have found a small amount of oil in my number 1 cylinder what is causing and is it a big fix no warning lights are showing and car drives fine thanx in advance

 

There are 2 pieces to your valve cover gasket. One that goes around the edge of the cover and one that goes in the center around the spark plug holes. If the spark plug hole gasket is bad oil will seep into the hole and onto the plug.