Wheel Options On '04 330xi

[Pinkpanther]

Hello!

I have a 2004 330xi, manual, with 17" runflats that has pressure monitor. I want to change to either 18" or 19". What are my options and will this effect my awd system? Do these wheels work with the pressure monitor?

Thanks for your help

[Mach 5]

It should not affect the AWD system, and with the pressure monitor it depends on if the sensor can be transfered form the current wheel to the new wheel.
Ben

[Gulelin]

Check out the link I sent you in the PM, but you prolly have to roll the fenders for 18s, almost certainly for 19s. Shouldn't affect the AWD though, they stagger the wheel sizes on the XI in Canada at the dealers.

[Red 330CiC]

Originally posted by Gulelin@Oct 18 2004, 02:10 PM
Check out the link I sent you in the PM, but you prolly have to roll the fenders for 18s, almost certainly for 19s. Shouldn't affect the AWD though, they stagger the wheel sizes on the XI in Canada at the dealers.

[snapback]213417[/snapback]

Wheel size has nothing to do with overall tire dimensions, so as long as you don't exceed the max tread width and tire diameter, you can put 18's or 19's on with no modifications. Just select the proper tire size - i.e. sidewall height ("series") and tread width. One thing you don't want to change is your stock tire circumference (i.e. diameter), as this will affect your speedo and potentially your AWD traction control. Increasing diameter or tread width (beyond the max for your car) will require rolling the fenders and/or other serious mods that you don't need to get into. To determine your tire size for larger rims the calculations are simple. If you don't know how, the tire rack or any online wheel & tire store will gladly help you determine the proper (or max) size for your car.

[Gulelin]

Although the tire diameter for my summer setup was slighty different for the front and rear wheels I didn't notice any adverse effects. This website has a calculator that will give you the actual dimension of the tire:
http://www.gordon-glasgow.org/tirecalc.html