First of all, I have a 1997 A4 2.8 FWD with 107,000 miles on it. I have known for quite some time that I have a small power steering leak. For the past two days, whenever I start my car in the morning, there is a strange moaning noise coming from the engine bay. it eventually goes away after a little while. I am assuming my fluid level is getting too low. The shop I go to is closed until Tuesday. Am I OK to wait until then to have them top off my fluid? Any help is greatly appreciated.