G Klasse immobilizer problem

A similar problem occurred with my G Klasse. It sounds like a car electronics issue, possibly related to the anti-theft system. Is there any issue with the key signal reception? Does your vehicle have remote start?

Remote start, I don't know about that. Key signal? How would I even check that? Sounds like tech stuff.

The key signal is the communication between your key and the car's immobilizer. If that's weak or corrupted, it can cause this. Since you're seeing immobilizer fault codes, the programming of the key may be incorrect. I would recommend a workshop visit for car electronics diagnostics.

I took it to the shop, and you were right. They reprogrammed the key, and it fixed the immobilizer issue. Cost 45€. Appreciate the help.