For 2023- VW Audi Porsche on the MLB platform (e.g., models like A4, A5, A6, A7, A8, Q5, Q7, Q8, etc.), you typically need to unlock the VAG SFD security gateway to perform key programming. This is because key learning involves adaptations, coding, or parametrization in protected control units like the immobilizer, central electrics, or gateway—functions that SFD restricts on vehicles built from around 2020 onward to prevent unauthorized modifications.
Does Keydiy KD-X4 can unlock SFD to learn the MLB keys?
Yes, Keydiy has an option to unlock SFD of gateway and cluster, but need to obtain unlock tokens after 3rd party.
Here is an example of how to unlock SFD using keydiy.
Select IMMO Programming- Porsche/VAG- MLB Immobilizer System-Start execution- SFD Unlock.
Unlock gateway.
Keydiy will display a VIN code, need to send the VIN code data to 3rd party to calculate the SFD token.
Keydiy recommended this guy on WeChat: geko12345 to get unlock token.
User can also unlock SFD via Online GRP Connection.
Send the VIN code to get unlock token. Paste unlock token here.
Unlock gateway successfully.
Unlock instrument cluster.
KEYDIY also gives you VIN code of cluster.
Send the VIN data to 3rd party to calculate the SFD token.
Paste the unlock token here:
Unlock SFD of instrument cluster successfully.
Perform related operations within 90 minutes.
After 90 minutes, the SFD token will expire and need to be re-obtained.
After unlocking SFD gateway and cluster, you can do key learning.
