2004 z4 ellipsoid alloys centre caps size

[Jas1234uk]

Hi all, could someone tell me the centre cap size for these 18" ellipsoid alloys on a 2004 z4?
Many thanks

 

[dhobbs]

They are usually 68mm but please verify that with someone who knows for sure.
I have mv2 and 103 alloys and they both are 68mm.
if you get replacement caps make sure they have 10 prongs as the ones with 5 tend to rotate and fall out.

I'm currently replacing just the emblem in the middle as the caps do come apart. Even though the caps are 68mm the emblem is 65mm.

Hope this helps.

 

[paul s]

I bought some 68mm ones off ebay for about £14 they are a very loose fit I had to wrap a few turns of insulating tape around them before fitting or I think they would have fell out

 

[Midhurstman]

They should be standard 68mm but, if you're not using genuine BMW OEM caps, make sure they are the 10 lug ones, like these http://www.ebay.co.uk/itm/161388640931?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT as most cheap caps are only 4-5 lugs and fall out.

 

[Jas1234uk]

Thanks all for your advice, I will make sure I get the proper BMW part to be on the safe side