At what temp does the Aircon start working?

Dehumidfy the window.

 

Air con works as soon as the button is pressed, well mine does anyway. Used it to demist the windows a few times over the winter.

 

I believe some of the older R12 systems wouldn't work with an ambient temp below 4 degrees but it's not an issue with R134a/1234yf

 

6 degrees for it to work if I recall ! Sounds like another o ring problem!

 

Bottom connection to the aircon rad had gone on both my Meganes.

 

Is It a common fault ?.

 

Looks like it is from what I've read.

Had mine regassed today after swapping the rad and its lovely and cold now.Had it vacuum and pressure tested first. Bring on the sun.

 

If it does its only £16 to fill it back up so I dont care.

 

Fix it then.

 

I wonder if it will be the bottom rad connection?

Both of mine we're very corroded.

Fancy a fiver on it?

 

Sounds like you have it covered.
Good luck.

 

Air on does not engage below certain temp on megane 2! This is confirmed in the manual. This is both engine temp and ambient temp! The manual doesn't state a temperature as such but states if the temp is too low, it won't engage at all!