DS3 AC Problem

I had something similar happen in my DS3. First thing I'd check is the AC relay and pressure switch. Sometimes those go bad and prevent the whole system from kicking on. Any weird noises coming from the AC compressor or blower motor when you try to turn it on?

No unusual noises, just silence. Where exactly is the AC relay located in the DS3? And is there a straightforward way to test the pressure switch?

Finding the AC relay can be a pain, usually in the engine bay fuse box, diagram is on the cover. Testing the pressure switch is tricky without the right tools. Honestly, given it's not making any noise and it's completely dead, it might be worth getting it checked by someone who knows these systems. Could be individual valves inside the system, which becomes a bigger job.

Thanks for the advice. Took it to a specialist; turns out it was faulty valves in the AC system as suspected and had to get them replaced. Cost me around 1000€ to fix.