Peugeot 4008 MOST Bus Fault

Yep, had almost the same thing with my 4008. Radio dead, satnav useless. Is your Bluetooth also not working? It's all tied together on that fiber optic loop. Check all the fuses first, but I'm betting it's a control unit gone bad. Frustrating, isn't it?

Bluetooth is also dead. Do you know which specific control unit was the problem in your case? Any info on the diagnostic process you used?

Honestly, I didn't dive too deep myself. Once the symptoms matched and the garage mentioned the MOST bus, I knew it was beyond my skillset. I'd suggest taking it to a workshop with experience in automotive protocols. It'll save you a lot of headache. They should be able to pinpoint the faulty unit.

Thanks for the advice. A trip to a specialized workshop was needed. The repair cost about 1000€ because the garage replaced a control unit in the MOST bus. Thanks again!