: PSdZData files must be placed in C:\Data\psdzdata .
Avoid modifying the engine control module (DME/DDE) unless you are an experienced tuner. E-sys 3.25.3 And Psdzdata Files V51.3
: The database (ECU data files) required for E-Sys to communicate with the car's modules. Version 51.3 is compatible with BMW models produced around early 2014. Key Features and Limitations : PSdZData files must be placed in C:\Data\psdzdata