4 steps to add BMW CAS3 key with X-horse BMW Multi Tool

Tool needed:

BMW Multi Tool CAS1-4 key programmer

CAS plug adapter (adds EWS function) for BMW multi tool

A laptop running Win 7/Win XP laptop

Instruction:

Well install BMW Multi Tool software

http://www.obd2vip.com/download/bmw-multi-tool-7.7.zip

Connect and set up CAS plug adapter with BMW multi tool

Install BMW Multi tool software

1) Read EEPROM

Wait the system to auto detect the Protocol type, press【Read EEPROM】button

BMW Multi tool software will display detail vehicle information, BMW number, VIN, production date etc,

Press 【Save to File】and save file to a certain folder

2) Change KM

 

Press 【Read KM】button

The will display old KM value, then enter new KM, press 【Write KM】button

Click 【Yes】to run this operation and change KM stored in CAS

Again click 【Read KM】button

The old km stored in CAS is changed to new value

3) Read& Write CAS Code

Press【Read Code】button, wait some seconds until the system succeed reading the CAS code in DME and EGS module automatically

Check and correct the CAS Code in DME and EGS, then press【Write Code】button

Wait the writing data success prompt display

4) Key Learn

After successfully write CAS code, press 【Key Learn】button

Select 【Get Key Info】option to choose key programming method: Add key or Lost All key

Select “Add Key: You should insert a working key into ignition and connect device with car before continue”, press【NEXT】

Insert a working key into ignition, connect BMW Multi Tool key programmer with vehicle via OBD diagnostic socket

Use【Save Key Info】to save the original key information

Adding BMW additional key procedure is completed

Exit the software and disconnect BMW Multi Tool v7.7  with vehicle

Save