Any chance your 18"s are the AMG rims? I wouldn't mind having the AMG 18"s since they are wider and the Nittos would be closer to the accepted rim width. Realistically if I went to the trouble of new rims I would just get the 16"s like you have though.w5yk - 3/3/2005 10:48 PM
Those are the 16 inchers in the photo - they are identical to the 18" in every detail (except size), so its a subtle change. You can't get an 18" AT in any of the three circumferences that are recognized by the computer. Hence the move to 16". Even if you weren't worried about the computer, there is still no AT-type tyre that really fits well.
However, I now have a bunch of 18" rims that I'm happy to sell off one by one if anyone needs spares. I originally thought I'd keep a set of 18" rims with street tyres, and the 16" rims with ATs, but the ride is so good on the ATs that I don't see much need for the 18" option.
So far, my MBNZ dealer can't program the computer for the new tires - they claim that all the settings are password protected, and dealers can't get past it to change anything. They just see the diagnostics part. Anyone else had their MBUSA G500 changed to a new rolling circumference?