Hi all, I have a 2013 C300 4matic Sport U.S. spec. It came optioned with the staggered 17" rims and I have recently upgraded to a 18×8.5 44 offset with 225/40 18 tires, square. My first question is about tire pressures. MB was no help, referring me to Goodyear for the info. I've perused the forum and there is a common consensus between 29-31 psi. at all 4 corners. Can anybody find any documented numbers?

Second, does anyone know what the alignment specs would be for this new setup?

T.i.a.