Where do you put the power steering fluid in a BMW x5?

The power steering fluid reservoir in a BMW x5 is located under the hood, on the passenger side of the engine. It is a clear plastic tank with a black cap. The cap has a dipstick attached to it. To check the power steering fluid level, remove the cap and pull out the dipstick. The fluid level should be between the "MIN" and "MAX" marks on the dipstick. If the fluid level is low, add enough power steering fluid to bring it up to the proper level.