Thanks for the replies.
I just wanted to update everyone on this situation.
I have been extremely busy since I posted on here and did not have time to do anything with the X5 and I will say this:
I have not done anything to her and the SES light has been off for 2 months and 4k miles.
Just as it has come, it has gone with no explanation. SO I have no real incite as to what the problem is but have come to the conclusion BMW's are special vehicles they fix themselves.