Hi, the following problem on my W164 ML 320 CDI OM642 224ps approx. 290tkm Bj2005: The car jerks when speeding up and goes into the emergency run. In addition, the turbo always gives a flutter of itself when you release the accelerator pedal. The problem exists since last winter, where it did not want to start and had to be helped. At that time the problem was in the exhaust pressure sensor and after exchange the car drove again for 30km without problems but then again the same, emergency run. This time the error became 251 1 AGR monitoring set, so I renewed the AGR valve, but the problem persists. Then I removed the turbo, the intake manifold and the EKAS actuator. The rod of the throttles had a lot of play, so I renewed this and checked the EKAS for smooth operation and installed everything again without success, still the same problem. At the moment the error is 2510 charging pressure regulator – malfunction or defective stored, but if I set the charging pressure plate This is because during the test you can see the controller working at the charging pressure selector and at 10% it stays up (i.e. too) and at 90%(i.e., you can clearly stop the turbo as it pulls the air. The funny thing is that the charging pressure selector always stays open at 90% at the bottom of the idle. Can someone tell me how his controller behaves? So the position in idle mode and at 1500 rotations would help me even further. someone with the same problem or tips, what should I consider next?