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				Air con noise
			 
			 
			
		
		
		
			Hello, I've recently got a 1998 Boxster 2.5. I love the car but when I turn the aircon on it works fine but I hear an odd noise coming through the vents. It sounds like the compressor working too hard or fan that is not happy!  
 
Is this common and should I worry about it? Can any preventative maintenance be carried out before something breaks? 
 
Thanks for reading.
		 
		
		
		
		
		
		
		
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