2010 BMW X5 30i Power Steering Fluid Question

[G33k]

Hello All
I am little confused so looking for your help. I have recently bought 2010 X5 30i AWD. Wanted to change its power steering fluid. The cap says ATF fluid only but in the reservoir fluid is not red but it looks clear. Now it has turned to light brown but still it is not red. All previous maintenance is done by dealer.
I went to dealer and he brought CHF-11 for me. When I told him about the cap he said use ATF.
Any owner of this model around. Should I replace this with ATF or use CHF-11? Not sure if someone mistakenly added this fluid or label is incorrect?
I will really appreciate your help.

[upallnight]

Older BMW's and Audi's used CHF 11 for the power steering fluid, but newer cars now uses ATF. They are both hydraulic fluid. If the cap says ATF then go with ATF.