Hello together, the car has not been so long. I found today that the climate compressor in the switched on condition about every 3-5 seconds on and off. The previous owner told me he was about 9 months ago at the climate service. This cycle would speak for too little refrigerant. What is the best procedure? Should I first have the climate filled again to make sure that it is really full? Have now briefly on the valve to the On the other hand, I had a few drops of greenish oily liquid under the cooler after the transfer in the front? But not since then. I checked everything with a black light flashlight, didn’t discover anything. The cooler fan does not run, even though the climate is switched on. Or does it come after a certain time, because I always have the climate stand for a short time. If the engine runs longer and is straightened in the idle g warm, the fan is already on, even if the climate is off. How should I best proceed? Greetings Horst