I have a 2005 1.9TDi. Over the past few weeks it has developed a horrible fog horn style noise when i switch it off. It last for about 5-10 seconds and comes from within the engine bay area.
Should i be worried.
Do you mean the car sounds like its breaking wind cos if so I have had 3 1.9 CDTIs and they all did that but only for about a second or so. So if yours is doing it for that long sounds like something maybe partially blocked somewhere?.