Well, you finally did what I was about to recommend, i.e., to verify that your replacements were in fact serviceable. Here is a secret- I work on airplanes, and we get a bad part on rare occasion, so I know it happens with cars also. I love my 505, it was my DD until I went overseas. I had fun talking crap at work about having a French car (1985 505s) and an Italian motorcycle (Ducati ST3), and neither of them ever making me late for work. Drive safe