W204 Air Con doesnt stay on

[kerjuk]

Hi,
I have a 2008 - W204 C Class 220cdi. The air conditioning has been working fine for the last couple of years. It was recently recharged about 2 months ago.
Now when you press the AirCon button it flashes a couple of times and turns off.

Can anyone advise how I can reset the AC or why this might be doing this?

 

[MancMike]

I don't know, but mine developed the exact same problem a few weeks ago. Flashes 3 times, then goes out, no air con.

I've tried disconnecting and reconnecting the air con pressure sensor, just incase that was the problem (as it's right at the bottom of the condenser, right at the floor just above the undertray.

I think the only next move is to get it plugged into STAR for diagnostics, but I haven't done that yet...

Maybe others will advise on if it can be reset, etc?

 

[amiller81]

The sensor is sensing low or no pressure by the sounds of it. Take it back for a re-check. My bet is the condenser will need replacing as it has a leak