Hi friends..This is my second year enjoying my membership and I want to thank all that have recued me with repairs. You guys are awsome. Ok first question of the year, I just changed oil and filter on my 540i. All went smooth but when I started the car to check for leaks about a minute after car was on I heard a ticking noise and it seems to come from the front side of engine. I turned car off and started again, the ticking again after a minute or so after start up. I went with BMW 5w30 from Mobil 0w40 could this be why?..Anyone have this problem?