Getting bigger wheels...do I need to re-calibrate my computer?
03-11-2002, 06:53 PM
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CLK 320
Getting bigger wheels...do I need to re-calibrate my computer?
So I'm getting bigger wheels (thanks Harris!) and I was wondering if I need to have the dealer re-calibrate my car's computer to account for the larger size wheel? I'm going from a 16" stock wheel (205x55) to a 18" wheel (255x35). Now simple math tells me that my overall wheels size will get bigger.
I don't want to have my car tell me that I'm going 65 when I'm really going 67.
Do I have to goto the dealer or is there some way that I can adjust the assumptions that are programmed into my car?
Thanks...
I don't want to have my car tell me that I'm going 65 when I'm really going 67.
Do I have to goto the dealer or is there some way that I can adjust the assumptions that are programmed into my car?
Thanks...
03-11-2002, 07:09 PM
#2
Bhavin, you dont have to do anything. The overall diameter of yr tires will remain the same. You're having 205/55/16 wheels now, whileas you'll be getting 225/40/18 and 255/35/18 later, as long as you maintain the same tire width/wheel ratio, you will be fine. I noticed that your wheels have reached CA already. Getting there! 
03-11-2002, 07:30 PM
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Shouldn't have to do anything unless you have COMAND. Then you would have to re-cal the NAV settings for the new tore size and tread conditions.
03-13-2002, 11:06 AM
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I just got my 18" wheels and put it next to my stock 16" wheels and the 16" wheels + tires were a smidgen taller! The overall circumference of the wheel was also slightly larger on the 16" + tires.
This is the opposite of what I expected!
This is the opposite of what I expected!
