The EVAP one always takes the longest. It has to be above 37° Fahrenheit and you have to let it stand overnight and it has to have either like a full tank or empty tank or something. It's taken me forever to get it to turn on on the f30. E53 it still took a few days of random driving. The cycle they mention in ISTA, doesn't work. Even if all the sensors and everything are tip top it doesn't work.

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'05 E53 3.0 6mt
'17 F30 340ix 6mt
'96 E36 328is, in progress