Changing tire sized from OEM and Problems
#1
Changing tire sized from OEM and Problems
So I tried to run 225/40/18's on my 2007 sport sedan, as opposed to OEM 225/50/18
they fit fine on the wheels, felt good, however after a few miles pretty much my whole control panel lights up, Brakes, VCD, ABS they all come on!
the tire shop checks the code the comp is running and its that the system is detecting the wrong tire size! apparently this can cause a slew of issues with the abs system
I know there are some of you who have custom larger wheels or are running different tire sizes is there a remedy for this? dealer says it cannot be overriden, but we all know dealers. . ..
they fit fine on the wheels, felt good, however after a few miles pretty much my whole control panel lights up, Brakes, VCD, ABS they all come on!
the tire shop checks the code the comp is running and its that the system is detecting the wrong tire size! apparently this can cause a slew of issues with the abs system
I know there are some of you who have custom larger wheels or are running different tire sizes is there a remedy for this? dealer says it cannot be overriden, but we all know dealers. . ..
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Your front and rear tires can't have more then a 3% (i believe) difference between the two, in respect to their circumference. If the difference is more then 3% the traction control (VDC/TCS) will think the wheels are slipping because the turning rate of the smaller tires will be higher then the larger tires. If you turn off your VDC it should stop flashing. But this means you won't have any type of traction assist if you end up needing it.
Do a search, this is a very common issue, and i'm sure someone else has posted more in detail about this.
Do a search, this is a very common issue, and i'm sure someone else has posted more in detail about this.
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With aftermaket rims/tires, people usually try to run tires with diameters that are about the same, front and rear (and hopefully roughly the same diameter as OEM to keep the speedo fairly accurate). IMO, 1-2% off won't hurt much (unless you have an X), but your setup is too much.
A 225/40/18 tire is 6% smaller in diameter as the 245/45/18. That's a lot. It is also rotating over 6% faster than your rear.
A 225/40/18 tire is 6% smaller in diameter as the 245/45/18. That's a lot. It is also rotating over 6% faster than your rear.
Last edited by CalsonicVQ; 04-14-2009 at 03:12 PM.
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#12
I'm getting to replace my stock tires on a 07 Sedan with sport package, looking for a all season sport tire and thinking about the Goodyear Eagle GT's from Tire Rack
225/45/18
245/45/18
I noticed the stock fronts are 225/50 18 and the Goodyear Eagles don't come in that size, will this be a problem going to a 45 vs stock 50 on the front or do I need to stay with the 50's on the front to keep from having problems with the VDC
Thanks
225/45/18
245/45/18
I noticed the stock fronts are 225/50 18 and the Goodyear Eagles don't come in that size, will this be a problem going to a 45 vs stock 50 on the front or do I need to stay with the 50's on the front to keep from having problems with the VDC
Thanks
#13
I have Goodyear Eagle F1s with the 225/45/18 in the front. no problems in terms of VDC or anything like that, seems to run just fine. They do make the front wheel well look substantially larger than the back because the wheel gap is much larger. Also, I HATE the Goodyears because of obnoxious road noise and I'm switching to Michelin PS2s this week and going back to the correct 225/50 size on the front
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