Hafner

Airbag control unit problems after coding

Hello everyone, I have a problem with my BMW 335i GT. The restraint system is out of order, and the airbag warning light is on. A few weeks ago I performed some coding on the control unit, and now it's no longer selectable. A backup cannot be restored either. I've already tried all the possible help options in the app, but without success. I have several questions regarding this: - Where is the airbag control unit located? - Is it likely that the control unit is defective, since it can no longer be read and no backups can be loaded? - Could the error (a total of 27 airbag errors are listed) be due to another component? - BMW will probably not repair the control unit, but only replace it. Does it make sense to remove the control unit and send it to a specialized repair shop, or is that pointless? I hope for helpful answers and thank you in advance. Best regards 👋🏻

(Translated from German)

The issue involves a BMW 335i GT with an inoperative restraint system and an airbag warning light following coding changes to the control unit. The control unit is no longer accessible, and backups cannot be restored, suggesting a potential malfunction. Possible causes include a defective control unit or issues with other components. Suggested solutions include checking fuses and wiring connections and considering sending the control unit to a specialized repair shop if these checks do not resolve the issue.

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1 comment(s)

It's crucial to address airbag issues promptly due to safety concerns. The airbag control unit in your BMW 335i GT is typically located under the center console or beneath the dashboard. Given the coding changes and inability to access the control unit, it's possible the unit is malfunctioning. Before considering replacement, check all related fuses and wiring connections for any loose or damaged parts. If these are intact, consulting a specialized repair shop for the control unit might be worthwhile. Please update on your progress or if you have further questions.

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BMW

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