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TKlein92

C4 Handsfree Microphone Failure

My 2011 C4 diesel (47010 km) has a hands-free microphone that's completely dead. Telephony is impossible. My OBD shows an error related to it. Has anyone else had this Bluetooth issue?

Summary of the thread

A 2011 C4 diesel owner is experiencing a complete failure of the hands-free microphone, making telephony impossible, and an OBD error related to it. A similar issue was reported by another C4 owner, who experienced speaker distortion and was informed that the infotainment system was defective, requiring replacement. The suggested solution is to replace the infotainment system, though it is noted to be an expensive fix.

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4 comment(s)

theodark1

Sounds familiar! I've got a C4, and I had a similar issue with the audio system. I was also struggling with the hands-free. Did you notice any other weirdness, like the volume control acting up or distortion in the speakers?

TKlein92 (community.author)

Distortion in the speakers... yes! The sound quality had been a bit off lately. So it's not just me then? What happened with yours? Was it a simple fix?

theodark1

Sadly not a simple fix. My C4 ended up at the shop; they told me the whole infotainment system was defective. They replaced it, which solved the issue, but it wasn't cheap!

TKlein92 (community.author)

Ugh, defective infotainment system... that's what I was afraid of. Thanks for the heads-up! Just got a quote for 815€. Looks like I'm off to the workshop.

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CITROEN

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C4