See also:

Thigh support
Pull the lever at the front of the seat and adjust the thigh support. ...

BMW X5: heating and ventilation, 3rd row seats
The air in the area of the 3rd row seats can be heated or recirculated. Air vents are located in the storage compartment area between the seats and in the footwell of the 3rd row seats. BMW X ...

Shoulder support
Also supports the back in the shoulder area: Results in a relaxed seating position. Reduces strain on the shoulder muscles. ...