Recently I have been experiencing the aircon becoming cold ONLY after a couple of rounds in the car park or when the engine is sufficiently warmed up. And then there is an intermittent high pitch sound coming from the aircon vents after driving for awhile, it comes and goes as it please. My mechanic thinks that the aircon clutch is not catching intermittently, hence the non-existent cold air until you drive it around, but it does not explain the high pitch noise. I wonder if any of you have encountered this problem? Also, in SG, we have to change the whole compressor assembly as the parts dealers do not bring in the clutch repair kit. I am wondering if there are parts dealers on the internet for the Copen? Thanks much all!