[s-cars] alarm sounding or caution/warning system alert

[Jerry Scott]

The alarm is a constant on with no beeping, when it comes on, and all gauges
are normal.  It sounds the same as when the radio is left on, the engine
off, and the door open.

 

As Larry mentioned, it could be the ignition switch, since it is the
original.

 

Thanks for the help guys, I'll keep checking and let you know what I find.

 

Jerry

 

From: Tom Green [mailto:trgreen at comcast.net] 
Sent: Thursday, August 29, 2013 4:42 PM
To: s-car-list at audifans.com list; Jerry Scott
Subject: Re: [s-cars] alarm sounding or caution/warning system alert

 

You should probably say UrS4, Jerry, since many won't know or remember, and
let's call this

an alert, not an alarm.  I assume by now you have pressed the autocheck
button to do a light 

bulb check on those caution and warnings and also looked at the owners
manual to refresh 

your memory on what lights should show when the key is first turned on, and
what symbols 

light up red (warning) or yellow (caution/advisory).  The buzzer mounted on
the back of your

instrument panel produces one beep for a yellow caution or 3 beeps for a
warning signal.

 

How many beeps you are hearing is significant.

 

So, are any lights missing?  The most common issue is a burned out bulb in
the autocheck

or other places on the instrument cluster.

 

Second issue for 3 beep warning is oil pressure switch.  You have a gage
also, right?

 

Third issue is driver's door light switch.  You may have other interior
light clues, or not.  I have 

chosen the drivers door because it is used more often by a ratio of 100 to 1
on most cars.

 

Fourth and most useless caution is windshield washer tank level.  Do you
have an intensive

tank with a fluid level sensor?

 

Knowing what warnings/cautions to expect can lead you to disconnect the
sensors one at a 

time to see if you find a malfunctioning sensor.

 

The problem may also be in the instrument panel itself, where connectors
and/or circuit board 

traces or solder points have broken or deteriorated from corrosion.  I saved
that for last for a 

reason.  If you have no problem, you can disable the buzzer.

 

Tom '95 S6  

         '95.5 S6 avant

Knoxville, TN

 

On Wednesday August 29, 2013, at 1:17 PM,   "Jerry Scott"
<jerryscott at wispertel.net> wrote:

 

Need help!  I am getting an alarm that comes on after the cars warms up,
while I am driving.  It sounds like the same alarm as when the radio is on
and the engine is stopped, with the key in the ignition.  There are no
warning lights on, and the instrument gauges are all normal.  Any idea what
this could be?

Jerry