[r33_RGSport]

Ok, it seems like the xDrive can't take the 15mm spacer since the hub length itself is 15mm.
One local customer came in to install a spring, when I removed the wheel, I found out the hubcentric part of the spacer broke off from the spacer.
After further inspection, then I found out it don't sit flush originally.
So far it is confirmed on the xDrive35d.
If any of you who bought it from me that have xDrive35i or xDrive50i can confirm that it is the same issue, let me know.
Take them off and I will refund you.
This customer ended up with 15mm in the rear and I am ordering 5mm for the front.
Once I got them done, I will post the picture.