This little thing sits up in the dash on the passenger's side below the speaker. I am to understand that this device blows air from the cabin into the climate control system so that it can properly regulate the temperature. The impeller on mine has developed a nasty squeal which I have tried in vain to silence. I finally had to resort to jamming it with a stick in order to stop it. The problem now, of course, is that the climate control is out of whack. The system has a difficult time keeping a constant temperature, especially in winter.

Has anyone had this problem? Does anyone know how to replace this part? I would be grateful for any advice or guidance.

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2004 E320 Wagon
1989 300SE
1998 Range Rover 4.0 SE