Just bought a 2008 Z4 3.0i. Previous owner took off the stock wheels and replaced with some butt ugly after market types. Current tires are Potenza 225/45R17 front and rear which are what is specified on the door panel. I want to change the wheels back to stock BMW and am considering going to 18 inch wheels. Questions:
1. Any problems going with the larger wheels?
2. Should I get 8 inch on the front and 8.5 on rear?
3. What is the significance of "off set"? Most of these wheels look like they are 47mm offset.
4. Current tires do not accommodate the TPMS system and the tire light stays on. What sensors should I get with the new wheels?
Thanks for any guidance on this.
As you referenced the door panel,
what is specified for an 18"upgrade in size?
Wheelcollisiondot com will show you what is available in redone BMW wheels. I have used them and been satisfied. They are out of Bath, PA so not too far.
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