NEED HELP! Bought S500 18" AMG Rims

[HeyitzCedes]

I bought 18" AMG Rims off a 2001 S500, bolts line up fine, but I realized while trying to install them, the bolts on my 2000 C230K or too short. Anyone know what bolt i would need to get? Sizes?
These are the Rims, NOT MY CAR THO:
http://www.benzworld.org/forums/attachments/sale-wanted-trade-giveaway/298892d1269708147-amg-wheels-18-2003-s500-amg-dsc01193.jpg

[Dearlove]

jut go to your local wreckers, they should have buckets of merc bolts

[wichipong]

you need to space them out... i believe the offset is et44... i had them and i had to space them out by 15mm and use 50mm at least (i think) 12x1.50 mm bolts... got them from http://otisincla.com/

[HeyitzCedes]

do i HAVE to space them out? it seems like i would be fine if i dont, i test fitted them. What would happen if i did not space them out?

[AMG KC]

They will rub.