BMW N57 engine 530d starts from 3000U/min and blocks heavy gelatin /WHY total rattle

Hello dear forum, I’ve seen and experienced a lot, but now I’m standing for an absolute rattle and urgently need help and exchange with like-minded screwdrivers. It’s about a 530d F11/F10 N57 engine (N57d30a). The car had a defective on the control chains, were hanged and started to hit, noticed it in the speed range from 1500 to 2300 rpm. So I got new control chains (Original Ina Chains) camshaft high pressure pump, high pressure pump pe crankshaft and crankshaft oil pump. I also replaced the automatic transmission because the original ATG (8HP70) was chips. Everything reassembly engine started again. I thought 🙁 let the engine warm up, runs very quietly in the stationary gas, no dropouts purring, no side noises like knocking or beating. Engine driven 10KM with moderate speed up to 2200 rpm very neatly. At the last 500m I had the feeling (only feeling) that the power was a bit back The car is accelerated to 3000-3500 rpm. The starter doesn’t get the engine turned again. The car is back on the lifts. Everything has been dismantled, control times checked, fit! Nevertheless, the head was disassembled because two cylids did not show the full compression during the pressure test, valves had coked, cleaned and newly ground, –> now OK, engine had not set up, no valves crooked or defective visible. Engine was hard to spin, the S CHWERgang comes from the crankshaft, after ten revolutions again easier to turn I think everything was that it is still a bit heavier than usual. Motor built up again, started, runs up to 2000 rpm very well, from approx. 3000 rpm the engine goes off and the starter gets the engine only very slowly turned (like with empty battery). Hand-turned again, (starter out, engine before and back turned manually on the flywheel) again lightly gäng) starter in, engine star It runs inconspicuously. Engine runs again, accelerates, engine runs out. I don’t know any more and need help… am really desperate! What can this be about? can it be crankshafts / pleul bearings? Ask for your support, maybe someone can upload this text into the FAbucar app Thank you very much Thomas