Renewed problem with our vehicle(incl. video)

Hello together, and again our vehicle has a problem. Many of you certainly know our suffering story, which has been going on for four years now. Why and why the car was already almost 20 times in the workshop I don’t want to repeat now, for that I would certainly need several hours. Anyway, our vehicle has been making funny noises for about two weeks now when the engine is switched off. I just uploaded this to Youtube and maybe one of you can say what this might be.http://www.youtube.com/watch?v=pccTVyzQCw0 LG Mo