ellaschwarz73
ix35 MOST Bus Fault
Summary of the thread
A 2012 Hyundai ix35 diesel is experiencing a complete failure of the audio system and navigation, with diagnostics indicating a MOST bus fault. This issue might be due to a faulty control unit on the fiber optics network. A suggested solution is to check the power supply to the amplifier, but due to the complexity of the fiber optic system, it is recommended to have a professional workshop with the appropriate diagnostic tools address the problem.
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4 comment(s)
ellaschwarz73 (community.author)
Thanks for the info! Amplifier power supply, you say? Where exactly is that located in the ix35? And is it something I can easily check myself, or am I better off taking it to a professional?
lisa_moon96
On the BMW it was under the boot floor, but I have no idea about the Hyundai. Considering it's a fiber optic system, and you're getting a MOST bus error, I'd advise getting it checked by a workshop with the appropriate diagnostics tools. It could save you a lot of time and potential headaches. That was also my approach back then.
ellaschwarz73 (community.author)
Okay, thanks for the advice. I suspected it might be a bit beyond my capabilities. I'll book it in with a workshop and let them take a look. Just got the car back, it cost me around 1000€, but now everything works fine again!
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HYUNDAI
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IX35
lisa_moon96
That sounds like a tricky one. I had a similar problem with my old BMW 5 series, though the symptoms weren't exactly the same. The iDrive system kept crashing, and it turned out to be a problem with one of the modules on the MOST bus. Did you check the power supply to the amplifier?