How to Change VIN for VW Golf 6 Bosch MED17 ECU

In VW group cars,Bosch MED17.5.X, MED17.5.20, MED17.1.x are widely used in Passat, Magotan CC, Tiguan, Golf 6, Sagitar, Audi Q5 and other models.If the ECU get error,when you replacing new ECU you need to do online programming.And if you use a used ECU,it will save much money.But you need change the VIN,so this guide show you procedures on how to change VIN for VM Golf 6.

 

Preparations:

NEUROTUNING IMMOFF17 Software No Need Activation Download

KTAG ECU Programmer

 

Procedures:

Remove MED17 ECU from Golf 6

Run KTAG software on PC,select “P179 protocal”

The select “Direct connection”

 

Follow the guide to build connection

Then read out full files (EP file need to be modified,but all files backup recommended)

Below show the files we need

The b.EPR need to be modified in this case

Open the EP file with Hex workshop software,then change the VIN to what you need.

After then save it with another name

 

Now we need use another software IMMOOFF 17 to do checksum

If you skip this step to write new EP file directly to ECU,you will find the VIN can not show

Click “EEPROM*IMMO OFF+CHECKSUM CORRECTION”

Then load origial file without modified

Then select the EP file you modified by HEX workshop software

After then IMMOFF17 software will transfer EP file automatically

Wait process,it will generate a new file

Now use KTAG software write VIN-b_CHECKSUM-OK.bin file back to ECU

All procedure finish.

More repair cases for VW,please refer to:VW Trouble Repair