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Intermittent single warning tone - no other symptoms

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Hi there,

I have just bought a 2006 / 06 Octavia 1.9 TDi PD Ambiente estate. Very pleased.

About three or four times in the two weeks since we bought the car a single warning tone has sounded, for no apparent reason. No warning lights on the dash, no change in engine behaviour or anything else. It is making my wife nervous! The one time it happened to me was when I was leaning forward to see into a junction, and so the only explanation I can think of is that it is an oversensitive seat belt warning.

Anyone got any better ideas?

Thanks,

scandalxk

It is most likely the single audio tone telling you that the outside temp is at 4 degrees C or below. Next time it happens, check the temp displayed on the radio screen or scroll through the multi-function display on the dashboard to check.

Yep, mine has done it a few times this weekend too, and it's the temperature warning. It only does it if the temp drops below 4 degrees whilst the car is on (if you start the engine and it's already sub 4 degrees then it won't make the noise.)

It's to warn you of ice risk. And it has been cold enough this weekend!

Hi there,

The one time it happened to me was when I was leaning forward to see into a junction, and so the only explanation I can think of is that it is an oversensitive seat belt warning.

scandalxk

Can't be the seatbelt - that only bongs when the belt is unfastened and you go over 10(?)mph

  • Author
It is most likely the single audio tone telling you that the outside temp is at 4 degrees C or below. Next time it happens, check the temp displayed on the radio screen or scroll through the multi-function display on the dashboard to check.

Ah - temperature sensor. Didn't even know the car had one!

Now, do I really have to scroll through the display to see the warning? Surely if it is really a warning it would bring it to the front, as it were?

Thanks, all.

scandalxk

Surely if it is really a warning it would bring it to the front, as it were?

Yes it does - assuming you don't have maxidot, after the bong the trip computer shows the temperature and a flashing snowflake (or does the whole lot flash? can't remember!) but only for a few seconds - it then reverts to whatever you had displayed

  • Author
Yes it does - assuming you don't have maxidot, after the bong the trip computer shows the temperature and a flashing snowflake (or does the whole lot flash? can't remember!) but only for a few seconds - it then reverts to whatever you had displayed

Well, in that case I don't think it's the temperature sensor, because nothing showed at all on the display.

Any other ideas? Thanks chaps!

scandalxk

Have you eventually got Tyre Pressure Monitor?

(ironically I have it and it never dang although both tyres were quite off, but simmetrically)

Well, in that case I don't think it's the temperature sensor, because nothing showed at all on the display.

Any other ideas? Thanks chaps!

scandalxk

It does only switch to show temperature for a couple of seconds. By the time you have heard the bong, thought "what the fek was that?", and looked around the dash for a warning light it will have gone. Being an LCD display it doesn't exactly jump out and hit you in the face when it flashes - unlike the maxidot that probably writes a short essay on the subject and nags you like your mum until you do something about it :)

For the 1st couple of times I was as confused as you until I sussed it out and went straight to the computer display.

  • Author
It does only switch to show temperature for a couple of seconds. By the time you have heard the bong, thought "what the fek was that?", and looked around the dash for a warning light it will have gone. Being an LCD display it doesn't exactly jump out and hit you in the face when it flashes - unlike the maxidot that probably writes a short essay on the subject and nags you like your mum until you do something about it :)

For the 1st couple of times I was as confused as you until I sussed it out and went straight to the computer display.

OK, I'll try and pay more attention in future. Thanks, Eccleshill. :thumbup:

scandalxk

Look for a * on the LCD/maxidot if its there, then it's the frost/ice warning bong.

Gets SWMBO everytime :rofl:

  • Author
look for a * on the lcd/maxidot if its there, then it's the frost/ice warning bong.

Gets swmbo everytime :rofl:

"swmbo"?

She Who Must Be Obeyed ;)

  • 5 weeks later...
  • Author

Actually the advice about the frost warning was a red herring. It turned out it was the seat belt warning. It happens occasionally when the driver leans forward, for example to adjust an air vent, and then stops when he or she sits back again. Presumably caused by the relaxation of pressure on the seat belt buckle sensor. That's why we never saw the seat belt warning light; whenever the tone went off the driver was always in a position which made it difficult to see the dash. Finally I happened to notice the warning light when my wife was driving.

Now we know what it is we're not bothered about it, because it only happens once in a blue moon.

I'd be inclined to get it sorted ASAP, as this may prevent the airbags going off!!!!!

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