Just picked up our 2011 X6 35 and I had quite a time attempting to find the LATCH anchors and install a child seat (front facing) properly using them. I see the icons on the seats and could feel the metal between the seat and back cushion, but the horizontal (parallel to the front end) piece that the anchor is to clip onto is recessed very far under the bottom seat cushion. It took two hours and the removal of the bottom seat cushion to actually find the correct clip point and get the seat clipped properly.
Any pointers? Am I missing an easy trick?