4kq: Wierd oil temp behavior/ *classic* audi humorousness!

[L DC]

Tony, that factory ground you replaced, is it the one
connected to the - battery terminal running to the
engine block/tranny bell housing? 

#2 gauge wire?

I also installed a 5KCS nonQ, nonT oil cooler in my
'87 QSW, and like you said, it bolts right on.

BTW, at what temperature does the thermostat open up
in that cooler, anyone?

Also, did you recall the oil temps before you
installed the cooler in your 4KQ, Tony?

What about now?

-Regards,

LDC

--- Tony Hoffman <auditony at gmail.com> wrote:

> This exdactly describes my 4000Q. I replaced the
> factory ground with a 2
> gauge, and it's perfect again. On a side note, the
> aux cooler setup off a
> 5000 CS Quattro bolted right up and helped even
> more.
> 
> Tony Hoffman
> 
> 
> On 8/22/06, Robert M <porter_t_dog at hotmail.com>
> wrote:
> >
> >
> >   My 4kq has always been really boring,
> temperature wise, in the 4 years
> > I've been driving it.   Unless I'm idling in
> traffic the water temp gauge
> > is
> > in the lower third, and the oil temp gauge (the
> LED one to the right of
> > the
> > difflock control) is somewhere around the middle
> of the scale.
> >
> > Then, one day a couple weeks ago I noticed the oil
> temperature was a lot
> > higher than normal, about 3/4 of the way to the
> top.   That was a hot day,
> > and as it seemed to be a one-time thing I put it
> out of my mind.  Until
> > Sunday, that is.
> >
> >   About 45 minutes in to a 3 hour drive I noticed
> that the oil temp was
> > high again.  Worse yet, in the next 5 minutes or
> so it continued to climb,
> > to a point one LED short of the Red Zone.  
> Despite the fact that the day
> > was cool and my water temps were low I pulled off
> the higway to
> > investigate.
> > Coolant bottle full?  Check.   Coolant bottle and
> radiator hot?  Check.
> > Oil on the dipstick?  Check.   Any feeling of
> unusual heat in the engine
> > department?  Negative.  Oil smell burned? 
> Negative.   Hmmmm.  I got back
> > on
> > the highway, relieved to see that the oil temp had
> dropped back to what
> > I'd
> > consider normal.  In 2 minutes.   Weird!
> >
> >   Driving on for another mile or so the temp began
> to go back up.  It hit
> > the red led, and then the display went blank. 
> Surprised, dismayed, and
> > not
> > a little freaked out, I reached out and tapped the
> LED panel like one
> > would
> > a mechanical gauge that was acting up.  *Much* to
> my surprise, the gauge
> > not
> > only came back to life but upon reillumination the
> lit LED went from the
> > top
> > slot back down to the normal zone, cycling through
> every LED in between.
> > Again, *just* like a sticking mechanical gauge.
> >
> > It was just like the Reactor Coolant Level gauge
> in "The China Syndrome".
> >
> > The Audi gods have a twisted sense of humor, but
> at least they left me
> > alone for the rest of my drive ;)
> >
> >
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