Hi Aaron, I've heard what you describe and I agree that the source of the noise is the 7-port vacuum manifold. However I have *no* idea if it's the manifold itself that's the problem, or if it's getting an erratic, or weak, signal from the ACC brain (pushbutton unit). I'd love to hear if anyone else has encountered this. I forget which of my cars does this occasionally, but it hasn't been bad enough (or frequent enough) for me to make a mental note to fix it. (Yet...!)
;-) -Dave M. > ------------------------------ > Date: Fri, 18 Nov 2005 13:23:25 -0800 > From: Aaron Lam <[EMAIL PROTECTED]> > Subject: [MBZ] Clicking noises from behind glovebox > > > Hi all, > > My 1987 300D has recently developed this problem, and I'm sure other > 124 owners have experienced this as well. On a cold morning after > initial startup, I hear a constant clicking noise from behind the > glovebox that goes away after about 5 minutes. It's definitely ACC > related - there's no clicking noise if the ACC is switched off. My > first guess is the vacuum manifold behind the glovebox - do these go > bad after a while and cause the clicking issue? > > -Aaron > 1987 300D > 1987 300TD
