How to use VAG OBD helper to read VAG 4th IMMO data?

Did you come across the situation that when you are trying to make a key for VAG 4th IMMO (No matter add a new key or when all keys lost), you can’t continue to program key because the key programmer can’t get the IMMO data.


With one VAG OBD helper cable, you can easily get the IMMO data online, then load the IMMO data into the key programmer (i.e VVDI2, AVDI, APPRO, Lonsdor K518 etc), and generate dealer key and learn.


VAG 4th IMMO Incl. NEC24C32, NEC24C64, NEC35XX, Johnson MQB, A4, Q5 BCM




1: Work with A4L Q5 (all the card 754C/J type)

2: can be used for VW, Audi, Skoda key making (even when all keys lost) and the 4th generation odometer correction.

Example, 35XX key all lost 873B 24C64 type key all lost or new model 95320.

3: Add key for MQB JOHNSON dashboard (not support key all lost )

  1. Support new PASSATT MQB key all lost.

5.Support to get BCM2 anti-theft data online for A6 A7 A8 Touareg Phideon with 5th immo.

Note: The 4th generation immo data and MQB data support most current popular VAG key programmer in the market.


  1. Plug VAG OBD helper to the vehicle.



  1. Click on “Read car info”, as you can see it reads out manufacture, VIN, immo type, power, key count, key ID etc.



  1. Connect the network and upload data to calculations.

The system is reading ECU type.

Click on “Online calculate immo data”.

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  1. Online calculate immo data successfully and save automatically, click on “Yes”.

The last data named “VVDI. NEC24C64_IMMO” can be used with VVDI2.

Copy the “VVDI. NEC24C64_IMMO” and paste it on the desktop.

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  1. Plug VVDI2 to the VAG car.

Open VVDI2 software, click on “Key Learn”, then “Key Learn”.



  1. Click on “IMMO data prepare key” to load the immo data that read out by VAG OBD helper.


  1. Apply this data to generate the dealer keys and learn the keys.

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Tip: Before using VAG OBD helper, please ensure the vehicle info is not tampered and vehicle status is legal, otherwise the immo data can’t be calculated.


This method can be used for key add and program key when all keys lost.