Changing run flat tyres (5 series )

[Z2019]

Hello everyone
iam new here I need your help please.

I bought this spare wheels as u see on the photos but unfortunately the break discs caliber are to big won’t fit on my car . My car bmw520d Years 2008 Has tyres 225/50/r17. I was thinking if I get wheel spacer form I need I don’t know What size I need ( I need 16mm or 20 mm?) Just wondering will this help to fit my spare tire . my question what size spacer do I need to buy. will this spare wheels fit if I get the spacer on Emrgency my bmw520d Years 2008? Is possible to recommend which size it going fit . I do appreciate your help thanks in advance. z

[Seedyrom]

I don't know if spacers would clear the brakes since the inner wheel diameter is the issue not the center portion of the wheel. The spacer would push out 16mm or 20mm but you'd still have the clearance issue.
Spacers also reduce the number of thread turns to tighten the wheel which is what I call wheel bite. I've run spacers on a 1994 300Zx TT but I wanted wheels with different offsets.

Also I can't see the wheel picture, try reloading or load a link to the wheel pic. That may help since some wheels may not work but most BMW wheels are interchangeable.