what is this noise..

[navmk4gti]

My mk4 started making this rattle and engine shakes for a split second when switch off the engine.. nothing on start up.. drives fine.. happens everytime when i switch off the car 

Does the 4mo have anti shudder valves?? I know the diesels do

Vid below..not the best but get idea..

http://static.photobucket.com/player.swf?file=http://vid253.photobucket.com/albums/hh60/naveedali1/20130601_145722_zps5ed80e46.mp4

[navmk4gti]