R1250 RS drive shaft replacement under warranty

[Grumpy Goat]

Brought my '20 1250 RS in for a software update about a month ago and since it had over 12,000 miles (about 15,000mi) they informed me that it's BMW policy to perform the drive shaft test on the bike. I told them I had replaced the shaft last fall as I had a new in the box one on the shelf. They tested anyway since the BMW service records didn't show it has having been done yet. I had about 1,200-1,400 miles on the new shaft. Result? Failed! So it was replaced under the new BMW drive shaft test/replace policy. They told me they'll check it again/replace if needed for free at 36,000 miles.

Do you know if this new one you had in the box (that failed) had the new part number?

I wonder if they test the replacement ones after they install them? Probably not. If they fail too then the machine that they have could be the problem. 

I have not been able to see a proper answer regarding how this test works, and so I remain skeptical on its accuracy. The fact that your new shaft with 1400 miles max on it failed makes me suspect the jig.