Hello Forum I don’t know any more. After the turbocharger gave very unhealthy sounding whistle sounds of itself which went along with a power loss the diagnosis was a new turbo must come from. After 220tkm I thought that could be. At an online parts dealer I ordered the good piece including oil and filter. After the installation in my garage I was quite disappointed. Although no noise but also no power. Then I decided a larger test drive to ma In the workshop no error could be found. After several discussions and opinions of colleagues I renewed the HFM, changed the AGR valve, the EPW for the turbocharger control and the clutch pedal switch. As you already guessed it still does not do right. Unfortunately no error is set. I even installed a vacuum box to see what the turbocharger control does. Looks quite passable from wa I have at the moment 3 driving conditions that do not change predictably. After switching a new condition or the old one.The 3 states 1. Engine does not build up a charging pressure although control and speed ok. 2. Charge pressure builds up slowly depending on the speed. 3. Charge pressure is immediately there and everything is good I don’t know any more. The workshop says that the new turbocharger could have a damage. If he does do it right now and again. g does he have to be OK? Is my opinion, right? In the meantime, around 600 km were mostly driven in condition 2. I hope you can help me. Thank you very much. Grexs