gerhardfox96

Koleos AC failure

My 2012 Renault Koleos with a gasoline engine is giving me grief. The AC quit, showing a speedometer warning, and the error memory mentions the refrigerant compressor. I checked fuses, but no luck. Is my compressor dead?

4 comment(s)

I had something similar happen with my Koleos. The AC just stopped. Do you hear any weird noises from the compressor area when you turn on the AC? Also, did you check the refrigerant pressure? Low pressure can sometimes cause the compressor to not kick in. In my case, the compressor clutch relay was faulty. Might be worth looking into.

Thanks for the quick reply! No weird noises, and I don't have the tools to check the refrigerant pressure myself. Where exactly is the compressor clutch relay located? Is it easy to get to and test?

Okay, no weird noises is… something, at least. Honestly, without the tools to check the pressure, you're kinda stuck. And finding the relay can be a pain, it's buried in the engine bay. Given the symptoms, it could also be a faulty AC control unit, which is a common problem on these. I ended up taking mine to a shop; they diagnosed it as a defective AC control unit and replaced it. Cost me around 980€. Probably best to get it properly diagnosed before throwing parts at it.

Appreciate the advice. Sounds like I'm in over my head. I'll take it to a trusted workshop and get it diagnosed properly. Hopefully, it's not too expensive. Thanks again!

Join the discussion now: