VVDI Prog Programmer adds BMW CAS4 key Guide

Here is the step-by-step instruction on adding a BMW 5 series key with original Xhorse VVDI PROG programmer by obdii365 technician.
This is BMW 5 series key.

BMW 5 series key.

Part 1: VVDI-Prog ecu programmer read out BMW 5 series CAS data.
1) Take out the CAS immobilizer located over the brake and accelerator

Take out the CAS immobilizer

2) Follow the VVDI Pro wiring diagram to remove the four red-circled components one-by-one, then solder back after all operation completed.

VVDI Pro wiring diagram 1
VVDI Pro wiring diagram 2

3) Begin to connect the wires one-by-one, then check whether they are fastened or not.

connect-ecu-1
connect-ecu-2
connect-ecu-3
connect-ecu-4

4) Connect well VVDI Prog

Connect well VVDI Prog

5) Close wiring digram, select Type: cas4-5m48h backup read

select Type: cas4-5m48h

6) Click “New”, then “Read”, it will initialize, then crack the chip, then read data, data read successfully, click “Save” to save data to desktop.

read-data

Read data successfully!

7) Solder the final component (shown as following picture) back to its location.
Solder the final component
8) Put the CAS back to the car, then test the key.
For the firs time to use the key, put the key on this position (shown in the following picture), then press the ON button to start the car, you see the car is starting, this key can work.
test-the-key
9) Close the door and off the ignition to test the remote, okay, it works.