air con problem

[graz]

Can anybody tell me if you have to remove all the gas in the air con system to change a faulty refrigerant sensor on a W208 CLK 2.3?

Thanks in advance

 

[television]

Some sensors you do others you do not, the evap one just unclips

 

[WG M-B]

Can anybody tell me if you have to remove all the gas in the air con system to change a faulty refrigerant sensor on a W208 CLK 2.3?

Thanks in advance

Yes

 

[graz]

Thanks, thought so as bolts on above the dryer

 

[mattkh]

Thanks, thought so as bolts on above the dryer

Hi
So, when you unbolt the sensor, what will stop the gas leaking ?