entr0pic wrote: ↑Thu May 13, 2021 5:01 pmI broke the plastic coolant bleeder valve in my '12 M56 base in the course of looking for a coolant leak.
I purchased this metal replacement part from Z1 motorsports and it fit perfectly: https://www.z1motorsports.com/z1-produc ... 11190.html .
I'm very happy with the part and it arrived in less than a week. Hope this helps someone who might be looking for a similar replacement part.