What tire sizes can I have on these rims so I won't mess up my xdrive?

 

Those rims come in four offsets. BMW wheel style 124 | BmwStyleWheels.com Do you know which ones you have?

 

Damn I'm not sure, they came with the car new in 2006



Does this help?

 

There's your answer right there... 43 front, 55 rear. Play around with different 18" tire size combinations in www.willtheyfit.com. As long as the rolling circumference doesn't vary +/- 3%, you're golden.

 

Alright! Thank you very much

 

E60 Rear Alloy Wheel Rim 18" ET:32 9J Star Spoke 124 6760618 275 35 18
E60 Front Alloy Wheel Rim 18" ET:20 8J Star Spoke 124 6760617 245 35 18
Above is what i have on mine, Take note the offsets are different to your's

 

Finnur has an xDrive BMW where tire circumference consistency is of utmost importance in order not to damage the differential. It's not as critical on a RWD car.

 

Mine are 3.1% greater at the rear, Is that not close enough?

 

Your 530d is not x-Drive, so you're okay.

 

I run 245/40 front and 275/35 rears on my staggered Style 32s (18x8/18x9) on my '07 525xi. Offset shouldn't matter, it's the the function of outside tire diameter that's important.