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How to enable “Add Key” function for BMW with G-Chassis ?

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Update time : Mar 16, 2025

BMW's G-Chassis vehicles (e.g., G20 3 Series, G30 5 Series, G05 X5) feature advanced electronic systems, including sophisticated key programming protocols. Adding a new key to these models requires specialized tools and software due to enhanced security measures. 


Autel MaxiIM IM508, IM608, and Otofix IM1 & IM2 with Autel G-Box/G-Box2/G-Box3 programming adapter can enable “Add Key” functionality for BMW vehicles with G-Chassis and later F-Chassis models. 


To enable“Add Key” function, Autel BMW G License is required. Follow the guide below to purchase the license on Autel/Otofix tablet.


For example: Autel MaxiIM tablet


Select "MaxiIM"

Select


 Select "IMMO", then accept the disclaimer

Select


Select "BMW" >> "System selection"

Select


Select "Immobilizer" 

Select


>> BDC2 immobilizer>> Programming operation>> ECU preprocessing

BDC2 immobilizer


BDC2 immobilizer


In the Purchase page, tick the second option “BMW Activation of Add Key Function-BDC02”, and then click “OK”

BMW Activation of Add Key Function-BDC02


Select the payment method: Credit card or Paypal

BMW Activation of Add Key Function-BDC02

For example: select credit card

Input the email, card info., cardholder name, country or region

You will receive a confirm message, follow the on-screen prompt to enter the code to continue.

Then click “Pay” and wait the payment is successful.

After that, the ECU preprocessing success.

ECU preprocessing success