The glass is held on by plastic clips and will just pop out.
Bmw x5 wing mirror glass removal.
Be careful with the wires for the glass heating elements.
Next on vehicles with heated mirrors disconnect the heater wires by pulling them apart green arrows.
Exactafit 8228r passenger side mirror glass replacement plus 3m adhesives compatible with bmw 2007 2013 x5 2008 2014 x6 left hand door wing rh 5 0 out of 5 stars 2 18 88.
Also if equipped remove the plug from the holder by sliding it out toward the top of the mirror glass and disconnect the connector yellow arrow by squeezing the release tab and pulling it apart.