C5 Hybrid AC Failure

My 2023 Citroen C5 hybrid's A/C has stopped working at 92505 km. The compressor won't engage, and there's no cooling. A diagnostic scan shows an error, but I don't have the code. Could it be a faulty pressure sensor, pressure switch, or belt tensioner?

4 comment(s)

Sounds familiar. I had a similar A/C compressor shutdown on my C5. Does it happen intermittently, or is it completely dead? Check the basics first - fuses and relays. Any weird noises before it packed in?

Thanks! The A/C is now entirely unresponsive. There were no peculiar noises before it failed. Which fuses and relays should I check?

Totally dead A/C points to a bigger issue. My problem turned out to be undervoltage causing the compressor to shut off to protect itself. Honestly, I'd take it to a workshop. They'll diagnose it properly and save you a ton of hassle.

Thanks for the guidance! I took it to a workshop, and you were right: it was undervoltage in the electrical system. It cost 240€ to fix.

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