Program BMW X3 EWS4 Transponder with VVDI Prog & VVDI2

Here’s little guide to make BMW X3 EWS4 transponder key with new VVDI PROG EWS4 adapter and VVDI2 key programmer.

 

Step 1: Read EWS4 Eeprom by VVDI Prog

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Remove dash

Take out EWS4 immo box

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Disassemble the EWS4 module

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Put EWS4 module in the VVDI PROG EWS4 adapter and lock it

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Connect VVDI PROG with EWS4 adapter, then connect vvdi programmer with computer with USB cable

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Open VVDI Prog software

Select Type 4th Immo, BMW and chip EWS4 adapter

Check connection diagram

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Click Read ID to identify the Micro and make sure that the connection is correct to avoid possible failures.

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Chip initialization, make sure all chip type matches

It has to match any of them, if not, it is connected badly

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Click Read to read eeprom data and save it

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Step 2: Program EWS4 key by VVDI2 key programmer

Open VVDI2 BMW software

Select Transponder Programmer

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Select Auto detect Transponder: PCF7935

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Choose Immobilizer Data Tool function

Select region Euro, vehicle make BMW and immo type EWS4

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Click Load EEPROM Dump

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select an unused key position and press Make Dealer Key

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Prepare dealer key success. Now the key can start engine.

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Reinstall EWS4 module back to car.

Test the new key, remote works, car starts

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Done.

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