Quote:
Originally Posted by Fanis
OK, here are the facts:
1. BMW fits larger tyres at the rear (only), but they are 245/40/17 and not 245/45/17. Thus, the tyres you bought have a higher profile, making them larger in diameter. The difference is 2.84% and up to 3% variance is considered safe.
2. You wheels ar probably 7.5'' width, which is the min. width for this size but they fit. BMW uses wider wheels at rear (8'') and with higher offset (53 instead of 43, probably to keep the tyre within the fender and not stick out).
3. Since BMW does not fit 245 wide tyres at front wheels, I do not know if there is a problem with steering angle.
With all the above, personally I would try to sell the tyres and fit the proper size. However, if you choose to keep them, then try and see if they fit, especially at front wheels. If they fit OK without any rubbing and the steering wheel goes from lock to lock, then probably you will be OK, but make sure to notice any change of the car's road handling.
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Thats great. Thanks for your time...Stu