Have an 01 S4, stg 3. It has a very slight coolant leak right now. When I say slight, I have not added coolant yet, but it has gone from full to where the MIN words begin. I can't find coolant anywhere, nor smell it either. I thought I smelled some when the heat came on several days ago, but have not since. Additionally, I just changed oil and had an oil sample done that revealed high sodium indicating possible antifreeze in the oil.

Any thoughts on what's going on? Right now, it is so slight, I'm just monitoring, but don't see it getting better.

Thanks.

Rob