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dirkklein9

Mercedes V Klasse System Failure

My 2009 Mercedes V Klasse with a gasoline engine is showing sporadic fault messages, errors in driving mode, intermittently illuminated error lamps, failing audio/navigation, and temporary control unit shutdowns. Diagnostic scans show errors. I suspect a defective cable connection within the control unit affecting its communication with the BUS system. Has anyone encountered a similar predicament?

Summary of the thread

A 2009 Mercedes V Klasse is experiencing sporadic fault messages, errors in driving mode, and temporary control unit shutdowns, suspected to be caused by a defective cable connection within the control unit affecting its communication with the BUS system. A similar issue was resolved by addressing a loose connection in the BUS system. The recommended solution is to consult a professional technician to diagnose and rectify the faulty connection, which successfully resolved the issue in this case.

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4 comment(s)

joachim_sturm1

Whoa, that sounds familiar! I own a V Klasse too and had something similar happen. Random system failure, navigation going nuts, the whole shebang. Was it the BUS system connection that triggered the malfunction indicator?

dirkklein9 (community.author)

Indeed, the BUS system connection is my primary suspect. Could you elaborate on the specifics of your experience? Were the symptoms identical? And, if I may inquire, what was the ultimate resolution in your case? Was it also related to the check engine warning light?

joachim_sturm1

Okay, so yeah, pretty much the same. The warning signal drove me nuts. I wasn't comfortable messing with the BUS system myself. I took it to a workshop, and they confirmed it was a loose connection. They re-seated or replaced the connector, I can't remember exactly. But honestly, just take it to a professional. System failure can be tricky.

dirkklein9 (community.author)

I extend my sincere gratitude for your valuable input. Following your recommendation, I consulted with a qualified technician. The diagnosis corroborated our suspicions: a compromised cable connection to the control unit, impacting the BUS system. The faulty connection was rectified, and the system is now functioning nominally. The total expenditure amounted to 155€, aligning with my initial estimation. Once again, thank you for your time and expertise.

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MERCEDES

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VKLASSE