high pitched whistling noise inside dash (Change over valve)
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Joined: Apr 2008
Posts: 27
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kompressor, c230
high pitched whistling noise inside dash (Change over valve)
I have a constant high pitched whistling noise in the passenger side of the dash, much like feedback from a microphone that wont stop. I pulled the fan and glove box out. I then replaced part # 202-800-01-78 and wouldnt you know it, it still whistles. The vacuum lines are not damaged and do not leak ( i inspected them)
I think it is the part above the change over valve. I don't know what the part is so i took pictures. can anyone help me out and tell me what the part in the last picture is and how to replace it? any help would be greatly appreciated.
vegas
I think it is the part above the change over valve. I don't know what the part is so i took pictures. can anyone help me out and tell me what the part in the last picture is and how to replace it? any help would be greatly appreciated.
vegas
Member
Joined: Oct 2002
Posts: 201
Likes: 25
From: Washington, D.C.
2016 GLC300 & 1991 500SL
I have a constant high pitched whistling noise in the passenger side of the dash, much like feedback from a microphone that wont stop. I pulled the fan and glove box out. I then replaced part # 202-800-01-78 and wouldnt you know it, it still whistles. The vacuum lines are not damaged and do not leak ( i inspected them)
I think it is the part above the change over valve. I don't know what the part is so i took pictures. can anyone help me out and tell me what the part in the last picture is and how to replace it? any help would be greatly appreciated.
vegas
I think it is the part above the change over valve. I don't know what the part is so i took pictures. can anyone help me out and tell me what the part in the last picture is and how to replace it? any help would be greatly appreciated.
vegas
Last edited by BVC500; Nov 22, 2011 at 02:42 PM.
