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How to Make BMW CAS3+ Key via Autel X400 on PC?

by Alex Carter Mechanic Assistant

XP400 chip programmer can easily do the chip read and write, key read and write on PC. Here's the demo example on reading CAS3+ EEPROM with Autel XP400 and write key with Xhorse VVDI2 key programmer.

 

 

 

Step 1: Read CAS3+ EEPROM with XP400

Download XP400 software on PC

Remove CAS3+ module, connect CAS3+ with XP400 programmer via APA106 adapter following the wiring diagram




In XP400 software, select Chip function->03-IMMO->BMW-> CAS3+ 0L15Y EEPROM, press OK


Read EERPOM and save dump


Step 2: Make dealer key with VVDI2

In Xhorse VVDI2 Transponder Programming function,  select Euro->BMW->CAS3+ (0L15Y, 0M23S)


Load EEPROM dump read by XP400


Insert a vvdi super chip XT27 to vvdi2's coil


Select an unused key position and press Make Dealer Key


Select transponder type VVDI super chip and press OK to continue


The selected key position not support directly start. To continue need write EEPROM back. Press Yes to continue.


Press Yes


Prepare dealer key success. It can start engine after write back new dump file or learn it to car.


Save new key dump data.

 

Step 3: Write Data back with XP400

Run Autel XP400 software, open new key dump data and press Write 



Write EEPROM back completed.


Now the key can start engine.

Install CAS3+ module back to vehicle.

Test new key.

Done.

 

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About Alex Carter Advanced   Mechanic Assistant

45 connections, 0 recommendations, 438 honor points.
Joined APSense since, July 23rd, 2015, From Carlifornia, United States.

Created on Aug 14th 2020 01:05. Viewed 285 times.

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