Generic OBD-II scanners can only read basic fault codes, but European cars...

https://wiki-club.win/index.php/Can_a_Normal_Workshop_Read_BMW_Manufacturer_Fault_Codes%3F

Generic OBD-II scanners can only read basic fault codes, but European cars often use manufacturer-specific systems that need specialist diagnostics to pinpoint issues. Using counterfeit parts risks more damage and costly repairs