Sounds strange. But my dealer price was $225 when I had it done, which I didn't think was out of line. They charged a little less for my wife's 325 - $185. Both times though, the work was done properly and they identified a couple of wear points that a Firestone shop might not have.

2002 X5 3.0 289,600 miles
2004 325i 120,000 miles