Hi need some advice re air-conditioning on zafira b 2013, there are conflicting statements out there re the air-conditioning workings of the car. Some statements say if gas is low the compressor clutch does not engage, some say it does. If you buy a re-gas bottle, apparently when you top it up it needs the clutch engaging at the time, but if it is low on gas and the clutch of the compressor does not engage, due to the design of the system, how do you top it up?
