Thanks guys, sulfur is apparent when I start the car and comes through the vents for a few seconds. Will take a closer look at the drive you mentioned. Funny thing is, the engine has no rattle to the touch just the steering reservoir. Could any of you test the steering reservoir in an N63 engine while running? Wonder if it's normal?

Lev

__________________
--------------------------------------------------------------------------------
LEV
2011 X5 xDrive50 Black/black////M sport pack/all options
2006 ///M3 Cabrio Gone but not forgotten
2003.5 ///M3 Gone but not forgotten
2007 Aston Martin V8V Gone but not forgotten
2007 Porsche turbo Gone but not forgotten
1995 540i M-sport(1 of 70) Gone but not forgotten