Air con query

[Jsmjsm]

Hello and thank you for any advice you can give.

I've got a C4 cactus and the air con is clearly labelled on grey caps for 1234yf gas. No probs

However, my wife has a 2015 C4 and it's less clear. The caps are black, don't indicate which gas and I'm not even sure which is low/high. My cactus is so much clearer.

Attached pic. Any advice appreciated

[RichardW]

The one on the pot / fat pipe is the low side. The later gas has a different size connector, so if you have a known one on the Cactus then compare with the C4 - my guess would be if it doesn't say on a label under the bonnet then it will be 134a.

[Jsmjsm]

Thank you for replying. Much appreciated

I'm thinking 134 also as there's nothing suggesting the newer gas and having just gone and checked, the 134 connected does fit the pot/larger pipe. I just needed someone to validate my thoughts.