How to Solve for BMW CAS 4+ with CGDI Car Key Programmer when all leys lost?

CAS 4+ anti-theft auto keys are all lost, need to be read to configure the key, read CAS 4+ anti-theft data and engine computer data, to load data distribution keys.

1.Reading CAS 4+ anti-theft data with CG-Pro S912
CAS 4+ anti-theft computer module style

CAS 4+ anti-theft computer module

Software physical wiring diagram

Physical connection

Connect the CG-Pro

Decrypt successfully and save the data


2.Read engine ECU data with CG-100
Note: CG-100 full-featured support
Click “ECU”

Click on the engine model option to enter the current vehicle

According to the software physical wiring diagram wiring

Engine module wiring

Click “Read EEPROM”

Read successfully and save the data

Show ISN and VIN


3.Match the new key with CGDI Prog
Click on the “CAS4 key match”

Load CAS 4+ data read by CG-Pro

Select data and click open

Display relevant information

Select the key position that needs to be configured, click to generate the dealer key, and click on the engine data to determine the next step

Choose the engine data with CG-100

Blank key

New key programming success

After learning, it can be used normally

 If you want to know more about vehicle key programming, please visit our website.