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DanFish

Insignia MOST Bus Fault

My 2011 Vauxhall Insignia diesel's audio system, including navigation, has completely died after 104568 km. No sound, and the sat nav is blank. I scanned for errors and it's showing a MOST bus fault. Has anyone else experienced something similar?

4 comment(s)

horstschulz10

Sounds familiar. I had a similar problem with my old Audi A6. The MMI system went completely silent. It was also a MOST bus issue, if I remember correctly.

DanFish (Author)

Do you remember what the fix was and roughly how much it cost? Just trying to brace myself!

horstschulz10

Yeah, turned out to be a faulty amplifier. It took them a while to diagnose, tracing the fault through the MOST bus. Best to take it to a workshop with experience in those systems; they'll be able to pinpoint the exact unit causing the problem.

DanFish (Author)

Thanks for the advice! I took it to a specialist and you were spot on. It was a faulty control unit on the MOST bus. Cost me about 1000€ to get it sorted, but at least everything is working again.

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