Hissing from front passenger side

reevers · May 9, 2015

My 2005, C2 Tip has developed a hissing noise coming from the front of the car. Gets worse when car is parked/idiles for a period and goes away when car has moved a slight distance.

Any ideas what this could be?

Lancerlot · May 9, 2015

Leak in the aircon system maybe? The rads at the front are very vulnerable. Regards, Clive.

ghost · May 29, 2015

I had this when a condenser leaked (as Clive said). Now the other one has holed and hissing is back! Grrr! Does your noise stop if your turn off the a/c? To prove it, press switch as soon as the hissing starts.

reevers · May 30, 2015

Thanks, noise seems to be coming from the condenser. Sounds like either the gas escaping or running through the condenser. No apparent leaks though. Air Con working normally, but noise goes when the air con is still on but fan is down to zero. As soon as fan speed is increased noise reappears. Will check for air con level before looking at condenser replacement

Matt Seabrook · May 31, 2015

Sounds like you may be low on refrigerant in you air con system. The system can still work but now where near as efficiently if this the case.

angusc · Jun 1, 2015

If you need genuin replacement AC radiators then do check out http://www.fastrads.co.uk as they are 1/3rd the cost of the same items from the OPC! I did mine this winter and also the cooling radiators at the same time. see here: https://www.porscheclubgb.com/forum/tm.asp?m=870759&mpage=1&key=󔥧

Stefan Wilczak · Jun 16, 2015

I had a whistling noise inside the car which disappeared when the fan was turned off a bit of a grumble generally as well with it on. I had an Air Con specialist come out to me to do both the 997 and my Golf. He emptied the systems pressure tested and refilled and the noises in the 997 are now gone and the Golf now works beautifully again - previously the 997 was working OK and Golf was failing. If you are in the Swindon area I would highly recommend John. His website is v informative and even has a section for classics and Porsche. Radiator replacement half price and he does more difficult jobs for my local OPC so I understand. Website should you need it: http://www.autoclimatecontrol.co.uk Even if you don't have a look at the site it put me straight on a number of things A/C! Hope your problem is fixed.