C55 stock tires pressure
225/40 R18
255/35 R18
mike
225/40 R18
245/35 R18
...cnt
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my rears are only 245's...I even went out on lunch to check... and this is what's posted on MBUSA....
Tires 225/40 ZR18 front, 245/35 ZR18 rear, high performance
Tires 225/40 ZR18 front, 245/35 ZR18 rear, high performance
cnt
but for us C32 who's upgrading to 18s we're running 255/35 rear to keep the circumference the same/close to oem as possible. Also, before AMG changed the format of their site, they used to have the size of the wheels and tires on there, and they said 255/35 for the 18s rear.
225 40 18 / 245 35 18 is much closer to stock than 235/255's. 225/255 would be the next closest with less spread front to rear. 235/255's alter the front to rear balance the most, at a difference of .38" vs the stock .26". BMW prefers to equip its M3 with 225/255's to get the closest spread between the front and rear, which is .06". The 235/265 combo would be the next choice with a difference of .10" front to rear. In 17" sizes, the 235/255 upgrade works much better in the math calculation with only a .29" difference.
225 45 17 = 24.97" diameter
225 40 18 = 25.08"
235 40 18 = 25.40"
245 40 17 = 24.71"
245 35 18 = 24.75"
255 35 18 = 25.02"
265 35 18 = 25.30"
Stock Pzero tires
225/40 18"
245/35 18"
and, tire pressure psi as written on the fuel tank cover
F33/R35 for 3 persons
F33/R38 for 5 persons
therefore, I have no idea why some here said their stock tires are 225/255
BTW, the tire pressure of C55 is behind the fuel tank cap, not at the doors.
I also don't agree fortune people here can drive a MB should make joke with the blinds
Please enlighten me if I have said something wrong here.
cnt



Relax Dude!!!






