Key programming Audi A4/A5/Q5 with BCM2

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Key programming Audi A4/A5/Q5 with BCM2

This special function is dedicated to learn keys to the vehicles equipped with the so called BCM2.

Normally these are A4/A5/Q5 after 2007, also A6/A7/A8 2010+, Touareg 2010+

ATTENTION: There are two modifications of the BCM2 modules – with 95320 EEPROM, and without 95320 EEPROM. For the moment only with the 95320 EEPROM is supported. If it is without 95320 EEPROM, do not try it at all.

Making keys for these vehicles requires reading the BCM2 module. In general the procedure is split into three steps:

  STEP 1 : Specify how to read the BCM2 module. In general all BCM2 modules can be read with our ZN030 programmer (called also ABPROG). But for some BCM2 modules (VAG number 8K0907289C) it is also possible to read it by OBDII if you have working key from the car.

STEP 2 : If you select to read the module by OBDII this will actually reflash the module and then the EEPROM content will be read.
If you select to read it with the ABPROG programmer, you need to solder 6 wires on the BCM2 PCB, and one resistance should be removed temporary (after reading is finished, restore this resistance). There is also wiring diagram.
If the BCM2 module is read OK, you will see the VIN number, the existing key-count and the power class.

STEP 3: Once the BCM2 module is read, you can make as many as you want dealer keys. A brand new key is needed for the dealer key. One brand new key can be made as a dealer key several times, but if you learn this dealer key to the car, it is locked during the key-learning procedure and cannot be used on other car anymore. Once you have the required count of pre-coded dealer keys, you can learn them. Also the original keys should be learned in this step, otherwise they stop working.