It is an X3, or is posted in the wrong forum. No air suspension dome.

5-10 minutes, it isn't covered up like the X5 is (at least my model year isn't, not sure which year and model you have as you don't list it in your profile).

__________________
2007 X3 3.0si, 6 MT, Premium, White

Retired:
2008 535i, 6 MT, M Sport, Premium, Space Grey
2003 X5 3.0 Steptronic, Premium, Titanium Silver
2002 325xi 5 MT, Steel Grey
2004 Z4 3.0 Premium, Sport, SMG, Maldives Blue