I have a 2002 Allroad Audi 2.7 Quattro Bi-turbo. There seems to be an issue where there is oil building up in the radiator. If anyone knows why this is happening I would greatly appreciate any guidance on how to resolve this issue. There is no water in the engine and there is no overheating. The car runs perfectly with no engine light on. Any suggestions will be appreciated! Thanks!!

 

Did you find out what the issue was and how it was resolved and how much did it cost? Appreciate. Thanks