Purpose
Using Xhorse VVDI Key Tool Max & Mini Prog to program a new key for BMW CAS3+ on bench.
Tools
BMW CAS3/CAS3+, dashboard, ignition modules
BMW CAS3/CAS3+ Solder-free Adapters
An old BMW key & a new key
Procedure
Read EEPROM
Connect Key Tool Max with Mini Prog via Bluetooth.
Go to Mini Prog main page, press
IMMO >> BMW >> CAS3+(0L15Y)(ADAPTER)
Connect CAS3+ chip with BMW adapter & Mini Prog.
Read >> EEPROM >> Start operation
Press “Continue” or START button on Mini Prog to start operation.
Rename and press “OK” to save file.
Program Key
Go back to Xhorse Key Tool Max main page, press
Special function >> Immo data tool >> Europe >> BMW >> CAS3+(0L15Y, 0M23S) >> CAS3+ >> Start execution >> Return button
Select data file saved just now.
Select an unused key position: Key 5, press “Prepare dealer key”.
Select “PCF 7936(PCF 7942/43/44345)”, press “OK”.
Put the old key into Key Tool Max coil slot.
Select “Have a working key. Insert working key to programmer and continue”, press “OK”.
Change to input the new key to Key Tool Max coil slot instead, press “OK”.
Is the new key with keyless? No.
Prepare dealer key success.
It can start engine after write back new dump file.
Add another new key need load the new data file.
Press OK >> Save file >> Rename & OK
Save file success. Press “OK”.
Let’s test the key in the end, both keys can start the engine.
Completed!
BMW CAS3+ adds a key by reading EEPROM with VVDI Mini Prog + Key Tool Max programmer successfully.