Anti‑Theft Protection Activated Service Required
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Joined: Mar 2026
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Mercedes E250 Coupe C207
Anti‑Theft Protection Activated Service Required
Hi everyone,
I recently bought a Mercedes E250 Coupe (C207). The car was stored in a container for about 50 days and the battery was completely dead. After replacing the battery, everything worked fine for a day, then suddenly the COMAND screen started showing:
Anti‑Theft Protection Activated Service Required
I’ve tried all the common fixes online — disconnecting the battery, resetting COMAND, and resyncing with the blade key.
Only the blade‑key unlock works temporarily, but the moment I insert the ignition key, the error pops back up immediately and the screen locks again.
Has anyone seen this before or knows which module/fuse usually causes this on the C207? Any help would be really appreciated.
I recently bought a Mercedes E250 Coupe (C207). The car was stored in a container for about 50 days and the battery was completely dead. After replacing the battery, everything worked fine for a day, then suddenly the COMAND screen started showing:
Anti‑Theft Protection Activated Service Required
I’ve tried all the common fixes online — disconnecting the battery, resetting COMAND, and resyncing with the blade key.
Only the blade‑key unlock works temporarily, but the moment I insert the ignition key, the error pops back up immediately and the screen locks again.
Has anyone seen this before or knows which module/fuse usually causes this on the C207? Any help would be really appreciated.
