C-CLASS AIRCON

This C-class came in with air con issues. With our machine connected the pressures were noted and found to be around the normal 10bar on the high side but nearly 0bar on the low. The high side pressures proved the compressor was pumping. The low side pressures suggested that there was a blockage. Through experience we have found the usual place for blockages would be the receiver/dryer or the expansion valve. The valve was removed which was situated at the back of the engine

With the valve removed and examined you could see the valve was stuck closed

With the valve fitted and the system charged the pressures were perfect

And the temperature was perfect