Engine dies repeatedly in the warm run phase.

Hello! would have a question here to all owners of an X- Trail T30 Diesel: did someone ever have the problem that the engine always runs out after a cold start and does not run in idle? I also observed that it shows inappropriate knocking noise during this “warm run phase”. These atypical noises disappear gradually at increasing temperature, as well as the disturbance with the engine failure. My friend has already told many stories in various workshops. t and after all, you already deducted very rich amounts of money, whereby the actual error was still not solved. (I myself would not have paid anything, of course, but a woman still seems to be able to charge some senseless and useless stuff). Ok, the money is gone, so I hope for your opinions and experiences. Already all filters, all equipment and some valve (allegedly control valve) were replaced, as well as they wanted to replace the charge air cooler. In my opinion, it can only be a small mistake – I think there is a temperature sensor or pressure regulator oä. Does anyone in the Koblenz area know an honest and reasonable workshop, which also takes this problem seriously and does not primarily look at the customer’s wallet? Thanks in advance for your participation. paytaxi