Problem is the MB has two different lug bolt sizes, 12mm ball seat for small cars like the Crossfire and 14mm cone seat for larger cars. MB went to all 14mm around 2012.


Bottom line Crossfires are 12mm x 1.5 ball seat 5 on 112 and are hub-centric with a 66.56mm center (that is known to seize but is a different issue). How long a bolt you need depends on the wheel but want to engage at least three full turns before it starts to get tight.