Xhorse VVDI PROG is able to read & write Mercedes Benz SLK R171 EIS W211 easily. Need to remove original EIS module from vehicle and prepare a new or second-hand module to clone. Following I'm gonna show how to do.

Open VVDI PROG to check connection diagram:
Type: 4-IMMOBILIZER
Brand: BENZ
Chip: EIZ-W211(ST12)

For soldering method: connect with MC9S12 Reflash Cable.
For solder-free method: connect to Benz W211 ST12 EZS Adapter.




Step1. Backup EEPROM & FLASH
Connect VVDI PROG to original EIS.
Read EEPROM...
Operation success.
Save EEPROM.

Read FLASH...
Save FLASH data file.


Step2. Write to New Module
Connect VVDI PROG to a new module.
Open original EEPROM file, click "Write"...
Open original FLASH file, click "Write"...
Just wait until completed.




Install the cloned module back on vehicle for a test.
It can work.
Done.


This is how to use VVDI PROG & Reflash Cable to clone a Benz W211 EIS.
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