As far as I can tell, the Turner monoballs installed in the blue E53 2022 lasted about 20k miles and a little over two years. The white E53 has had them about a year and a little over 10k miles. I just swapped the Eibach sways into the white one. While it is my wife's daily, and we won't tow with it, I suspect that she will be more gentle than I was.

The symptom of them failing in the blue one were a loud 'groaning' when turning the wheel at low speed. They never clunked on failure.

The ones in the E82 have been on since 2021 and about 30k miles. The E38 has had them for 2 years but only about 1200 milles. The E30 will have them installed this week.

They work really well on the E53, but they do not last long. It's a good thing they have a lifetime warranty on the parts.

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