How to Replace BMW CAS3 N20 ECU with CGDI Prog BMW

How to: change replace the BMW CAS3 N20 Engine Computer using CGDI Prog BMW key programmer.

When is required:

A secondhand/used N20 ecu was to used to replace the original N20 engine computer.

Procedure:

Read engine ECU data with CG100 Prog

Note: Only CG-100 full-featured can do this.


			How to Replace BMW CAS3 N20 ECU with CGDI Prog BMW

Click to enter “ECU”


			How to Replace BMW CAS3 N20 ECU with CGDI Prog BMW

Click on the engine model option to enter the current vehicle


			How to Replace BMW CAS3 N20 ECU with CGDI Prog BMW

According to the software physical wiring diagram wiring


			How to Replace BMW CAS3 N20 ECU with CGDI Prog BMW

Engine module wiring


			How to Replace BMW CAS3 N20 ECU with CGDI Prog BMW

Click ‘Read EEPROM’


			How to Replace BMW CAS3 N20 ECU with CGDI Prog BMW

Read successfully and save the data


			How to Replace BMW CAS3 N20 ECU with CGDI Prog BMW

Show ISN and VIN

Connect CGDI BMW with vehicle via OBD socket through main cable


			How to Replace BMW CAS3 N20 ECU with CGDI Prog BMW

Select BMW ISN


			How to Replace BMW CAS3 N20 ECU with CGDI Prog BMW

Click “Read CAS ISN”


			How to Replace BMW CAS3 N20 ECU with CGDI Prog BMW

CAS ISN read successfully


			How to Replace BMW CAS3 N20 ECU with CGDI Prog BMW

Input ISN which read through CG100


			How to Replace BMW CAS3 N20 ECU with CGDI Prog BMW

Write successfully, replace engine computer was completed.

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