I just got a set of Merc Alphards within the last few days. Now, I know that the outer circumferences need to be within 4% of each other. I have a few questions though.
1.) The tires that came on the car are 215/40/18 all around, the wheels are 18x8.9 / 9.5. I've been running them for the past few days and haven't noticed a difference, if something was out of whack, would that show immediately? Would the car actually freak out? I do not have any warning lights.
2.) Via willtheyfit.com, staggering 215's and 225's are within 4% - but if I can run 215's all around, that will obviously have the same circumference.. right?
I know they're probably stupid questions, but I want to be absolutely sure before I screw something up. This is my first AWD car, so I don't want to hurt anything.
Also, unrelated issue - the merc wheels don't have the tire pressure monitoring things, is there a way to tell the car that everything is ok? Some sort of bypass? Vagcom?
Please don't come in here telling me that "MY STAGGERED WHEELS ARE HURTING MY HANDLING, I'M GOING TO DIE FROM BEING SO UNSAFE."