Kadjar AC Compressor Shut Off

Hey! I have a Kadjar too, and your issue sounds painfully familiar. I had a similar problem with my A/C last summer. The undervoltage error is a good clue. Did you check the relay switch for the A/C compressor? Also, give the pressure sensor a look. A faulty sensor can trigger a compressor shutdown to protect the system. Just a thought, but has your battery been tested recently?

Thanks for the quick reply! I haven't specifically checked the A/C compressor relay or the pressure sensor. I'll definitely take a look at those. When you had the issue, was it intermittent, or did the A/C just completely stop working? And did the undervoltage code point directly to the relay/sensor, or was it more general?

For me, it was completely dead, no cooling whatsoever. The undervoltage code was a bit general, but after some digging, it turned out the A/C compressor was faulty and caused an undervoltage situation. You probably should visit a workshop and get the AC compressor checked out. A faulty compressor can cause exactly this behaviour.

I took it to a local workshop as you suggested. They confirmed it was indeed the A/C compressor. They diagnosed a faulty compressor as you said. Cost me 240€ including parts and labor to replace the compressor. Thanks again for pointing me in the right direction!