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eliasjung1

Peugeot 108 Audio System Failure

Experiencing a weird issue with my 2022 Peugeot 108 gasoline model. 126760 km on the clock. Suddenly the audio system is silent and the navigation is dead. Mechanic says error memory shows a MOST bus fault. Is this a defect in a control unit? Looking at a 1000€ repair bill. Anyone else seen this? Where do I start troubleshooting this?

4 comment(s)

matswolf9

I had something similar happen with my 108. No sound, nav system kaput. Did they check all the connections to the head unit? Was there any recent work done before this started?

eliasjung1 (Author)

Connections to the head unit? I'm not sure if they checked thoroughly. They focused on the error code and mentioned a faulty amplifier or the head unit itself. Recent work... only regular servicing, oil and filter change. Is there a specific connection point that's known to be problematic on the 108's audio system?

matswolf9

Yeah, it could be the amp or the head unit itself. I had the same error code. Unfortunately, it turned out to be a faulty head unit in my case. Best bet is to get a proper diagnostic at a workshop that knows their way around MOST bus systems.

eliasjung1 (Author)

Appreciate the confirmation! Seems like a trip to a specialist is inevitable. I was hoping for a simple fix, but a faulty head unit sounds about right given the symptoms. Thanks again for sharing your experience; at least I know what to expect. I'll share the outcome once it's sorted. It's such a pain...

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