For BMW X5 G05 (10/2017 - 12/2019). For BMW X5 F15 (08/2012 - 06/2018). For BMW X5 E70 (02/2006 - 06/2013). For BMW X5 E70 LCI (04/2009 - 06/2013). For BMW X5 F85 (04/2013 - 06/2018). The primary role of a fuel tank cap is to create a tight seal that prevents fuel vapor from escaping the fuel tank through the filler neck.
