On Mon, 09 May 2005 07:11:20 GMT, "+ Rob +" >
wrote:

>Hi all,
>
> Just recently my '05 TT started making a strange noise under very
>specific conditions. When the outdoor air temperature is between roughly 32f
>and 50f, the car illicits a strange "groaning" sound when I use the brakes
>while in reverse. When the air temperature is either warmer or colder there
>is no such noise. And the car otherwise drives normally.
> I doubt it's anything serious. But, with the weather getting warmer, I'm
>afraid that I won't be able to reproduce the issue when I bring the car into
>the dealer next week. So might anyone here have any idea what might be
>causing this "groan"? Or perhaps know of several things to look at regarding
>it? I figure it will help with the diagnosis if I can tell the where it
>might be coming from.
>
> Also....an unrelated question while I have your attention.
>
> Within the past week the car started doing another odd thing -- or
>rather not doing it. Typically, when you press the "lock" button on the
>keyless remote, the horm chirps to confirm that the car is indeed locked.
>However, it has stopped doing so. When I press the "lock" button, the car
>does lock and the alarm indicator lights begin to flash as they are supposed
>to. But the horm doesn't chirp. I don't think that it's a case of a bad door
>sensor, because as I said, the alarm is visibly arming itself when I lock
>the car. So what could it be? Might I have unwittingly changed a software
>switch that enables/disables the horn chirp? I'm at a loss.
>
> Thanks in advance for any assistance or ideas you might have.
>
>Rob
>2005 TT 3.2 DSG
>2002 A4 3.0Q
>

The chirp can be twiddled, so it is possible you twiddled it off....