Re: '84 4000 S...a couple a ?s

[quk@isham-research.demon.co.uk (Phil Payne)]

In message <000501be00fd$e8e68560$6eb62299@default> "Brian" writes:

> Good day Q's...just a couple questions for ya.  Do I have seat heaters?
> There's a fuse (#4 I believe) labeled with such things as dome light, radio,
> and ah!  seat heaters.   Then in my instrument cluster, if the sun is
> hitting it just right, i can see what looks like a lil pic of a seat.  Plus,
> there's an unidentified (by me anyway) wire attached to the seat.  So, do I
> have the heaters?  If so, how do I operate them?  Switch location, etc?

I doubt it.  There are four wires going to a seat with heaters - two to
provide ooomph and two to sense the temperature.  There's also a jumper
in the car side of the connector.

> Also, I have an upshift light, but it doesn't work.  Why not?  Oh, and
> there's a sensor looking thing, about 1 inch diameter i think, screwed into
> the rear of the head with a male connector sticking out of it.  Male as in
> it looks like the connectors commonly found on the backside of car speakers.
> Anyway, it doesn't have anything connected to it.  Could that be why my temp
> guage never gets above 80 deg.?

The upshift light usually fails because either a hose has worn or
chafed through, or the vacuum advance diaphragm on the distributor
has ruptured.  Either way - 95% of cars with dead upshift indicators
also have no vacuum advance.  Fix it, and your mpg will improve.

Depending on your driving style, by as much as 5%.

The sensor on the back of the head is, on almost all I5s, the
temperature sender for the dashboard gauge.  There are two holes on
the back of the head - one has a blanking plate and the other has a
sender.  On my old 80CD (and my ur-quattro) the smaller one has a sender
and the larger one a blanking plate.  On my Passat, it's the other way
round - the smaller hole is blocked off and the larger one has a sender.

The larger sender, though, has two terminals.

--
 Phil Payne
 Phone: 0385 302803   Fax: 01536 723021
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