Spare wheel e46 M3
Discussion
I M desperately searching to no avail for the thread discussing the appropriate wheel size/ fitment that can be used as a spare for the e46 M3.
I recall reading the thread some weeks back but despite my best efforts it remains elusive to me. Can some kind soul provide a link please. It may have been a thread in the cutters forum? Thanks for any help offered.
If I recall correctly the wheel was from the BMW330i. But not sure.
I recall reading the thread some weeks back but despite my best efforts it remains elusive to me. Can some kind soul provide a link please. It may have been a thread in the cutters forum? Thanks for any help offered.
If I recall correctly the wheel was from the BMW330i. But not sure.
^^^^^^
Thank you for info, my car is fitted with the 19" option wheels so would the wheel tyre you mention still be OK. I am concerned about all the speed sensors that control electronics being OK with odd size wheels, albeit in emergency use only.
I have now also found the original thread on the subject.
Thank you for info, my car is fitted with the 19" option wheels so would the wheel tyre you mention still be OK. I am concerned about all the speed sensors that control electronics being OK with odd size wheels, albeit in emergency use only.
I have now also found the original thread on the subject.
Edited by crankedup on Thursday 29th December 20:59
Standard 19 inch rim tyre size is
Front 225/40 19, circumference 2081.6mm
Rear 255/35 19, circumference 2076.9mm
The space saver, 135/80 17 has a circumference of 2035.1mm which will give about 2% speedo error. Given the speed you'll be driving with the space saver, it won't be an issue.
A 145/80 17 would be fractionally better (2085.4mm) but I don't think anyone makes that size. You could also go for a 135/85 17 (2119.9mm) but the speedo error is about the same in the other direction and you'll have a slightly larger spare to stash.
Front 225/40 19, circumference 2081.6mm
Rear 255/35 19, circumference 2076.9mm
The space saver, 135/80 17 has a circumference of 2035.1mm which will give about 2% speedo error. Given the speed you'll be driving with the space saver, it won't be an issue.
A 145/80 17 would be fractionally better (2085.4mm) but I don't think anyone makes that size. You could also go for a 135/85 17 (2119.9mm) but the speedo error is about the same in the other direction and you'll have a slightly larger spare to stash.
RichardM5 said:
Standard 19 inch rim tyre size is
Front 225/40 19, circumference 2081.6mm
Rear 255/35 19, circumference 2076.9mm
The space saver, 135/80 17 has a circumference of 2035.1mm which will give about 2% speedo error. Given the speed you'll be driving with the space saver, it won't be an issue.
A 145/80 17 would be fractionally better (2085.4mm) but I don't think anyone makes that size. You could also go for a 135/85 17 (2119.9mm) but the speedo error is about the same in the other direction and you'll have a slightly larger spare to stash.
Thank you, great stuff.. However I bought a wheel via eBay, the seller insists that it will be ok with the e46 M3. It is a 17" wheel fitted with a 125/80/17 tyre.Front 225/40 19, circumference 2081.6mm
Rear 255/35 19, circumference 2076.9mm
The space saver, 135/80 17 has a circumference of 2035.1mm which will give about 2% speedo error. Given the speed you'll be driving with the space saver, it won't be an issue.
A 145/80 17 would be fractionally better (2085.4mm) but I don't think anyone makes that size. You could also go for a 135/85 17 (2119.9mm) but the speedo error is about the same in the other direction and you'll have a slightly larger spare to stash.
I now need to sort out a side jack, I do have an old sisscor jack in the garage I will try that with the car on my drive before spending more cash!
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