So, luckily I had a already scheduled service with BMW for a intermittent AC problem. Second time in for this problem, and they still did not "duplicate the problem."

Anyways, the "exhaust Fluid" warning light came on 2 days prior to dropping off the vehicle. I only have 10600 miles on a 2009 X5 35D. They said the yearly oil change was done around 5600. I know BMW states that depending on the driving habits, but I really don't see using the fluid in half the time it is supposed to last. And what defines aggressive driving? I don't ever floor the vehicle. I drive around 75 on the highway.

BMW wont cover the fluid, so I am force to pay $40 a gallon; putting in only 1 gallon to see how long that will last. At the next oil service I will make sure they top off the fluid fully with the two 2.5 gallon tanks.

So far BMW is not making my satisfied with their lack of duplicating the problem, and lack maintenance covered.