I am trying to get seatbelt extender for my 530xd for center rear seat. The reason is to be able to access the buckle easier without having to push the child seats around every time the kids travel.
I have extenders for the window seats and they work (rigid kind) and I found this one on eBay:
http://www.ebay.com/itm/Seat-Belt-Ex...9ULb4W&vxp=mtr
I asked the company and they say it will not fit my BMW 530xd (eu version) because of how the belt buckle looks like. I sent them a picture, and I am attaching it here also.
Can someone that has the M5 us version take a picture of your center belt metal tongue so I can see if what they saying is correct, that it will not fit due to the special design on the center tongue.