How to Change VIN for New Volkswagen Audi BOSCH MED17 ECU on Bench

BOSCH MED17.5.X,MED17.5.20,MED17.1.X are equipped on Volkswagen,such Passat,Magotan CC,Tiguan SUV,Golf6,Sagitar and Audi Q5.If you need replace a new ECU,you just need perform online programming.But commonly,many customers choose used ECU to replace.So you need to change original VIN into used ECU.Here i will show you guide on how to change VIN for Volkswagen BOSCH MED17 ECU.And please remember try it at your own risk!!!

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What You Need?

KTAG programmer

Used BOSCH MED17 ECU

IMMOFF17 Software

Hex Workshop Portable Bin File Editor

 

 

Procedures:

Here we take Golf6 BOSCH MED17.5.20 ECU as example.

Run KTAG software,select protocol P179

Select “Direct Connection”

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Then it will show you the diagram connection

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Now operate to read out ECU data file.(recommend read all data out for backup)

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Here is all files read out from ECU show as below

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Run Hex Workshop Portable Bin File Editor to open b.EPR file

Change VIN then save it named vin-b

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This vin-b can not identified by ECU,you need to perform checksum

Here we need run IMMOFF17 Software and click “EEPROM*CHECKSUM CORRECTION ONLY” button.

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Firstly,we need to load the original file “b.EPR”

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Secondly,it will ask you to load the file you saved just now,here it is “vin-b”

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After then the IMMOFF17 will perform checksum and save the file in the same folder.

It named vin-b_CHECKSUM-OK

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You can use KTAG write this file back to MED17 ECU.The VIN has been changed.

Warning:This guide only for regulator locksmith tech exchange,please DO NOT apply on illegal!!!

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