Hi guys, I am new to this forum.

I have got a problem of my golf GT TDI 150 Engine.

The funny knocking sound exactly the same as the engine shown in the video I found.

http://smg.photobucket.com/albums/1003/Matt.H/VW%20Golf%20GTTDI%20150/?action=view&current=P1000569.flv

It will only happen when the engine is cold, it cures itself when the engine warms up or at 70C-80C. It seems to play in a special rhythm (like having a party inside) when the

tapping noise happen.

I have been told by different people with different possible causes. But before I do any further action. i would like to ask for you guys advice first. cause it always helps.

Thanks very much!!!!