Hello dear Motor-Talk members Have a Citroën C5 2.0 diesel from 2006 with which I am currently allowed and will deal. Currently several errors are in the hope of encountering a solution here And indeed: Today was during the main examination and this unfortunately due to an increased opacity value during the exhaust gas examination as well as error memory entries see picture, did not pass. Presumably a full DPF is the basis because I noticed at the subsequent clear lifting the the pipe from the differential pressure sensor, which is attached to DPF, has been shut down or removed and therefore no own regeneration has taken place. So now to my main problem. During the exhaust gas examination, I noticed that there was a hissing / squeezing when the engine turned up which became louder with each new turning up. On the next drive home I also noticed the hissing with load increase and became louder and louder. After a short time I had to The car felt no more charge pressure. (motor control light off). With further driving and constant throttle position, one noticed that the car had been jerking like a, like the throttle flap open and go or the turbocharger run and rotate directly afterwards at idle speed. Is anyone aware of this problem and can help me further or is there definitely a mechanical damage to the turbocharger? could not look into the turbo due to the heat of engine and components. I would be grateful for any help.