I have never found 15" steelies for my 116.
i did find a used sett of Ronal rims and BBS in 16" rims.

So if you can't find what you are looking for, this may be an option for you.

__________________
1959 Gravely LI, 1963 Gravely L8, 1973 Gravely C12
1982 380SL
1978 450 SEL 6.9 euro restoration at 63% and climbing
1987 300 D
2005 CDI European Delivery
2006 CDI Handed down to daughter
2007 GL CDI. Wifes