Thanks guys. I'm going to take my X5 to a company that rebuilds transmissions for these cars among others. If there is a company in my country that will fix it as it needs is that shop.
They're charging me about $600 for TC reman and labor. I hope there are any other issues

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BMW X5 2002 4.4i V8 - What a headache!!!
BMW X5 2019 XLine 3.0D - Loving it