My 2017 bmw 320i has been over heating , it has 30k on it , if you drive 60 plus

What is your question?

Anytime you drive over 69 plus and 20 miles plus it’s hot ams turns off . Replaced thermostat cleaned cooling system and fluids . Still over heating

What makes this problem better or worse?

Driving 69 plus ans ling distance

How long has your 2017 BMW 320i had this problem?

A week