Thanks for all the feedback! Since I want this car operational today, I'm going to buy the part from the BMW Dealership in Warwick, RI ($102), and attempt to put it in myself. I thought it was funny - the guy at the dealer said he didn't even need to look up the part number, he said he has "a shelf full of these". Crazy idea BMW - maybe make it more durable?

Since I am getting rid of the car, I will start small with just the expansion tank, and hope nothing else goes bad in the next several months...

I found this DIY on the forum, saying this takes about 20 minutes and is only slightly more difficult that a wiper replacement. I find it hard to believe it's that easy, but I'm going to give it a shot, here is the link:

http://www.xoutpost.com/miscellaneou...ement-diy.html

Thanks again!