I changed out my water pump and did a cooling system refresh this past weekend. While i was pricing out the parts i ran across a deal at O'reilly's where they overnight your pump to Arizona rebuild it and overnight it back with a warranty for $222.99. If your interested in the O'reilly's deal but want to save yourself the headache of having your car down and torn apart while waiting for your pump to get rebuilt i have my pump available at no cost. All i ask in return is that you provide me with your old pump so i can pass it on to someone else.

http://www.oreillyauto.com/site/c/search/Water+Pump/01398/C0331.oap?model=M3&vi=1371002&year=2001&make=BMW