mddecker,
I assume you saw this thread:
http://www.xoutpost.com/x5-e53-forum/...zen-story.html
I doubt it will get better by itself, even with Spring coming.
You might slide, if the weather really warms, you do some hwy miles
on it, followed by an oil & filter change...may buy you some time, but
it's not going to heal itself.
GL,mD