No I just have driven an '04 that had the issue and was told it was the 2-1 solinoid. I've seen the valve body in videos and it is a non scary job.

If you take out a valve body to replace a solinoid first use a scan tool like mine (foxwell nt510) to measure the solinoid relative pressure (I think I can just read the volts or miliamp) to help determine which valves are failing. Then when you replace the ones that are failing replace ALL rubber parts inside. Some models have a rubber seal to the valve body but some it's just a flat metal surface.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)