Our 2012 1.6tdi match has an audio bong warning even with the key removed. Nothing on the display to associate with it. It's a single bong with a long pause between the next one. Not there when driving.
Pretty sure it's bonging when we're not in the car either, as it's flattened the battery.

Any clues as to the cause, I've checked all doors and boot are closed properly, light are off or auto etc.

TIA

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