So, on this:
Looking at the ETK, the HU_HIGH4 (MGU21) is only valid on G2x/G8x builds until 30th june 2023. after that the part changes.
on the X7 forum, they found out there is a MGU21A, which is updatable to 8.5 from 8. It's too early to confirm as july onwards cars haven't landed yet, but there's a small chance there's a different HU in post july cars, and **MAYBE**
an update from 8 to 8.5 will come with the november i-level.
Old part for ROW: 65 12 5A8E740
Current part for ROW for repairs: 65 12 5B32389 (looking at the supersection)
There's no new line item *yet* on the etk. will check again in a month.
Time will tell.
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