Sporadic vibrations, lack of drivage

Hello, everybody.

I have been having problems with my Dicken V8 4.2 ABH with automatic transmission for some time. It all started when driving at a traffic light, the car began to shake at a standstill, strong vibrations were noticeable, the vibrations increased when starting, disappeared and only came back 500 km later, also mainly in the stand and often also sometimes already in the middle of driving operation, always for a few seconds the vibrations were noticeable and the drive was somehow not linear. I then mainly in the stand alo idle was the LLRV developed and cleaned and had a little over 1000 km of rest. Now these vibrations are back, In the stand gas on "D" when I stand on the brake as well on "P" I switch to "N" they are coming away for a while but also here after a few minutes again. The drivage is jerky when it vibrates under full load the vibrations do not occur up to now, but even on the track at 180 km/h it has begun to vibrate, however only very short, but recurring. If I turn the engine in a stand in "N" with speed upwards, the vibrations disappear, it reaches the idle speed you hear a relay or similar clacking ( amarture board left and somehow right ) and the vibrations are back. The phenomenon is sometimes accompanied by a tsch tsch tsch sound which seems to come from the right fender behind the wheel when you tap the accelerator pedal slightly. The liquid level of the coolant is minimal, the candle image is good.

I had searched the search function on the subject of vibrations and jerking but could not find anything, excuses the kangen text but I did not know how to go shorter. Unfortunately, the mistake is sporadically today he was not there, but would like to go on vacation soon and hope someone has an idea. Oh, yes, I had the car in front of about. 8000 Km at ZF in Dortmund, all the fluids of the drive train were replaced and the skipper box was dismantled, cleaned etc., it switches clean.

Best regards from the Münsteland
Micah