Hi - Wonder if anybody could help please. My Son's 2005 VW Golf 1.6Fsi has recently started to make a loud noise when turning the ignition key to the first position (before starting up).

The noise last for a few seconds and then stops. The car starts and runs perfectly normally otherwise.

Just wondering what it might be and where to start looking for a solution to quieten it down.

I have put a short video at the link below (phone was very close hence it sounds a lot louder in the video than in reality):



Many thanks for any help!

PS: Car has done 80K from new and is regularly serviced.