I've found an interesting thing.
When I...
1. put M5 in "N"
2. apply parking break
3. press start/stop button to turn off the engine,
"Auxiliary Ventilation" is always greyed out.
However, when I...
1. put M5 in "D" or "R"
2. apply parking break
3. press start/stop button to turn off the engine,
"Auxiliary Ventilation" is no longer greyed out. It's available to be enabled.
And M5 no longer beeps (warning message) about car can move away with "N" engaged.
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