cruise control antics

[Larry Leung]

I also have an MC2 200Q, with 1.8 bar boost, but WHEN 
the cruise worked (haven't had the time to search out
the likely leaky switches) it USUALLY worked pretty 
smoothly. Occasionally, it would do what Nick stated.
My boosted S doesn't have the problem. 

LL - NY


On Tue, 11 Jan 2005 11:54:07 -0500, Nick Lawrence <nick at beol.net> wrote:
> I was going to ask a similar question....
> My '90 200TQA with increased boost, (1.7 bar), changes speed too fast, then
> coasts, (high vacuum) when using cruise in slightly even terrain. doesn't do
> this when boost is near stock. Anyone else experience this?
> Nick
> ----- Original Message -----
> From: "Brett Dikeman" <quattro at frank.mercea.net>
> To: <quattro at audifans.com>
> Sent: Monday, January 10, 2005 9:48 PM
> Subject: cruise control antics
> 
> > The 200q20v has a new trick- unintended cruise control acceleration.  I
> > discovered this for the first time in a couple months coming home late
> > from work and just wanting to do a nice easy cruise home.  I'm pretty
> > sure cruise control worked fine back in October for my trip to Mont
> > Tremblant.
> >
> > I'll set cruise control, and it will maintain throttle for that speed,
> > but as soon as terrain changes, speed jumps alarmingly; it seems to be
> > maintaining throttle instead of speed.  Also- tapping the brake or
> > clutch pedal WILL disengage cruise control (counterindicating a problem
> > with the linkage or vacuum line, and obviously the vent switches work),
> > but the cruise on/off switch will NOT turn off cruise control (yipes!).
> >
> >   Further- in the off position cruise control can NOT be set (ie by
> > pushing the stalk button for ACCEL), which seems to counter-indicate a
> > shorted switch.
> >
> > I'm baffled; never experienced nor heard of this kind of 'failure', and
> > I've got some conflicting symptoms.  Any ideas?
> >
> > Brett
> >
> > --
> > "They that give up essential liberty to obtain temporary
> > safety deserve neither liberty nor safety." - Ben Franklin
> > http://www.users.cloud9.net/~brett/
> >
> > _______________________________________________
> > quattro mailing list
> > quattro at audifans.com
> > http://www.audifans.com/mailman/listinfo/quattro
> 
> _______________________________________________
> quattro mailing list
> quattro at audifans.com
> http://www.audifans.com/mailman/listinfo/quattro
>