Date: Tue, 08 Jul 2003 18:29:59 GMT
From: Paul Halliday <>
Subject: Re: Calling all "What's that thingy?" experts ...

in article, Paul Halliday at wrote on 28/06/2003 22:51: > in article bdknm6$tmolb$, at > wrote on 28/06/2003 19:44: > >>> There is a "thingy" (gold/bronze in colour) that looks like the working end >>> of the wastegate actuator facing out of the upper LHS of the void behind the >>> dash. There is a vac port with no line connected. The vac line (labelled >>> -3-) is pretty much the right length to connect to this device, so I >>> connected it up. No change whatsoever - better or worse. >> >> Open/closes the flappers for the dash ventilation ducts, I would >> guess? My c900 manuals are on loan so I can't check for sure. Does >> it look like the actuator on the fresh-air flap under the hood >> vent, by any chance? Definately fits the description. Have >> you run through all of the vent positions in your control valve? >> That's all pneumatic, as you've probably noticed. I'd bet that's >> what you're looking at, and I bet the #3 hose would have had >> suction on it in one or more switch positions. > > Ha, yes! Clunk <penny dropping> :) > > I followed a -3- hose over to the RHS of the dash as well, so I was very > confused about what it did. I seemed to simply run from one side to the > other. There'll actually be two hoses labelled -3- going to each of the end > vents. I do remember that one of the vac lines on the vent controller > cluster went to a Y junction - that'll be the one that serves both of these > vents. > > I never use the LHS (passenger side for me), so I'd never notice the > difference. Perhaps I will now that I know it works. <snip> > Thanks Dave (and Grunff). I'm enlightened. I told you I never use it - it's some time since I connected up the vac hose to the far LHS vent. Previously, I couldn't operate it and neither could my passengers (surprisingly!). One of my colleagues (a Golf GT<red>I</red> driver, but don't judge him prematurely - he loves Saabs) operated the switch today and it worked. Woo hoo! Thanks, Paul

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