It actually came with Texaco ETL-8072B which dex 3 should be compatible with.

This is what bmw recommends to use now to replace the Texaco ETL-8072B :

https://www.turnermotorsport.com/p-2...8072b-1-liter/

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2000 323i
2001 X5 3.0 auto
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2011 535xi auto
2013 X5 xdrive35 Turbo
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Aftermarket E53 Radio Install