clapping in stant help I’m still thru

Hello, I’ve been listening recently, such a clapper gereusch at the crankshaft, it’s not loud .. but it annoys a bisl, the smell is just standing, sobalt I’m driving it away. or the car comes about 1300U then it’s gone, but as soon as I stop he claps again near the crankshaft or crankshaft it sounds like what’s going on, and the vacuum pump it’s not defensive !!! that’s new… motor is a 2.3 NG dear greetings