This is the 04 limited. I had to use longer bolts then the 10 mm.

I'm using 02 c32 AMG rotor (300) and caliper, my everyday 10mm spacer

I have read and kept screen shots from the c32 brake upgrade threads. Not too much info on rears. It said they bolt on, it said use the 300mm rotor, it said get 12 mm bolts. It said the black wire is not used on the regular xfire.

I'm dismounting the calipers this am. I have one more set of pads if the problem is fixable. I puchased grease for the pins in case the pads were not sliding on the pins. I can switch every part back the way it was if necessary.

This is the caliper I'm using