Step 1: Gather Necessary Tools
- 2 Original keys that work with the vehicle
- New or Unprogrammed Key
- BMW diagnostic tool (such as INPA or ISTA+)
- Laptop with the diagnostic software
Step 2: Connect toECU
- Attach the diagnostic tool to your vehicle's OBD-II port.
- Connect the tool to your laptop using the appropriate cable or wirelessly(Depending on the tool)
Step 3: Open Diagnostic Software
- Launch the diagnostic software(INPA or ISTA+) on your laptop.
- Select the appropriate vehicle model and ECU options
Step 4: Enter CAS Module
- Navigate to the Central Body Electronics(CAS) module or equivalent
-Locate the "Key Programming" or"Key Adaptation" option
Step 5: Begin Programming
-Follow prompts or instructions on the diagnostic tool regarding key programming
-Select the "Add New Key" or similar options
-Enter a key number or position
Step 6: Insert Unprogrammed Key
-Insert an unprogrammed key into the ignition
-The ignition should be off at this point
Step 7: Programming Sequence
-Follow the steps provided by the diagnostic tool
-Turn ignition to specific positions, press buttons or perform other actions accordingly
Step 8: Finalize Programming
-When prompted,remove the unprogrammed key and insert one of your working keys
-Confirm the programming process
-Retrieve your newly programmed key from ignition
Always be sure to follow the detailed instructions provided with the diagnostic tool as various BMW models and years may have slight differences in programming procedures. If you encounter any issues during the process, it is recommended to consult with a professional automotive locksmith or BMW dealership.
