This is a tutorial on how to add the BMW CAS3++ ISTAP key with Xhorse VVDI Key Tool Plus + GODIAG CAS3++ Test Platform. With the GODIAG test platform, we can detect if the key is programmed or not.
Step 1. Backup Immo Data
Connect Key Tool Plus, GODIAG test platform & CAS3++ module.
Immo programming >> Europe >> BMW >> Select form system >> CAS3/CAS3+ immo system >> Key function >> Start programming >> Generate keys via OBD >> Read key information
Add key: please insert the ignition key into the ignition switch and connect the vehicle and device well.
All keys lost: please insert a blank key into the ignition switch and connect the vehicle and device.
Click “Yes”.
Confirm key information, and click “Yes”.
The dealer key should be taken away from the ignition switch.
If the key is keyless, please move it out of the car.
If there’s no key in the ignition, continue anyway.
Press “OK” to continue.
Save data file.
Step 2. Make Dealer Key
Prepare dealer key with programmer >> Select a blank key position: Key 7
CAS key data is encrypted, and support makes dealer key for it. Once failed, please contact the dealer!
Please put a new key into the Key Tool Plus programmer.
Is the current key the smart key? No
Make dealer key success.
Step 3. Add Key
Press “Add key”.
This function adds the newly generated key to the IMMO system. Need to be executed “Generate dealer key”, use programmer function to generate the key.
Press “Yes” to continue.
Please put a new key into the Key Tool Plus programmer.
Is the current key the smart key? No
The dealer key should be taken away from the ignition switch.
If the key is keyless, please move it out of the car.
If there’s no key in the ignition, continue anyway.
Press “OK” to continue.
The dealer key should be taken away from the ignition switch.
If the key is keyless, please move it out of the car.
If there’s no key in the ignition, continue anyway.
Press “OK” to continue.
New dealer key success is written to the CAS system.
You can start the engine with the new key now. If can’t please use the original working key first.
Go back to read key information.
We can see the Key7 has been successfully written.
Put the new key into GODIAG, and press the START button. The IMMO light flashed, which means the key was programmed.
