these tabs numbered as 13 thay are the parts attached to the x's frame, plastic tabs on the headlight are the one part of the light assembly, unfortunatly for as (users, drivers X loversetc.) they are disigned that way by BMW so if u are involved in any accident and tha light assembly is tempered tabs braking off so the whole thing dosen't crack, but then u screwed any way because u can't replace the tabs, unless u are so handy and u can addopt or invent something... goood luck, but I wouln'd buy that one anyway, they are so cheap on ebay, fork out couple xtra $ and u will get with the tabs...