How to Solve Autel IM508 not Working on BMW CAS3?

 Problem: Comfort access fails after programming new keys on BMW CAS3+ using Autel IM508 on bench.

Solution:

The BMW CAS system only allows two comfort access keys to be active at once. To fix this, follow these steps:

• You do not need to erase all keys from the system. Only need to erase one of them and put the key in the same slot
• Use your diagnostic tool to disable the extra comfort access keys.
• Ensure only your two preferred keys remain enabled.
• The comfort access feature will now work for the two enabled keys

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