Date: Thu, 21 Feb 2002 19:43:30 -0000 From: "Julian" <julian.maynopsamamplease.btinternet.com> Subject: Re: Aircon woes - '98 9000 (UK)
"Pidgeonpost" <pidgeonpostnopsamail.com> wrote in message news:a4u6n9$p9h$1nopsam8.svr.pol.co.uk... > Julian...there are a number of fairly well documented possible causes for > this problem. Have a good look on this and other NGs for details, but > possible causes include:- > > 1. Having the 'recirculation' button pressed on the ACC control panel. This > is cheap to fix - any easy diy job. > 2. Leaky heater matrix - not always as obvious as it sounds as the leak only > needs to be minor. > 3. External water leaks into the car, raising the overall humidity - ACC > then fails to cope. > 4. Dead or malfunctioning recirculation motor, which opens/closes a flap > within the system. Listen carefully when you turn the ignition on (without > starting the engine), and you may hear the faint whine as it does its job. > 5. Blocked drain in the bulkhead - need to remove the plastic cover and > check drain is not full of dead things. Pour some water into the area and > check it runs out. > > This is a real pain - I had same prob for over a year. Problem turned out to > be (4). > > Best of luck.... > Many thanks for the info - 1, 4 & 5 have been checked, so my gut feel is the matrix. I *think* my eyes sting when it happens, which would also point to a leak somewhere. Cheers Julian