23+ Audi S3 Engine Oil Leak. Fantastic car and never let me down, but keeping black clean is a full time job! Blauparts informational pages also explain why these oil leaks happen (especially on v6 30 valve engines).
Everyday i wipe off the oil on the top of the engine and the next day, after driving 10 miles from work, same thing again. My engine used to leak due to seal fail 6 months ago. Enthusiasts that we are, it has to be the s3.
Best thing to do is to clean the engine as best you can, add dye to the oil (visible under black light) and run it for a week or 2.
This involves replacing the crank case and updating the engine management software to the latest release. The part that is facing the interior of the car. This video endeavors to simplify the difficult task of diagnosing audi and vw oil leaks. Motor oil leaks will hurt your engine.