I talked to my ex-BMW master tech, who has his shop, and he told me that he has never changed the CV boots on the e70's. He said the material is different (different plastic as opposed to rubber on e53), and that it last a very long time. I asked him if these boots could be interchangeable, and he didn't give a definitive answer. He said they look the same , but have different p/n - in agreement with realoem. He also said they have a higher end lip that is more square on the outside.

Could the difference in p/n be only the material, and the slight outside end different? If the ID's are the same and the length is also the same, they might fit, and that be the last time one would do outer CV boots.

If anyone has friends at the local BMW dealership, could you please go and visually double check and compare these 2 sets? Also take some measurements for lengths & OD/ID to confirm/infirm?

I would do that myself, but no love with the parts counter. People who live close to Pelican, FCP Euro, ECS Tuning, etc might be able to get some help there as well.

I know it's a long shot, but it might be worth it.

Thanks

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Stable: e92is, e46 M54B25, e83 N52, e53 N62 - sold, e39 M54B30 R.I.P.