Moin, to be honest, this box bugs me slowly. Purchased for 1900 euros and plugged in 2000 euros within 2 months, and only parts that should not actually be broken: engine, starter, windshield. After the old engine gave up its mind because of broken crankshaft at 220tkm and was replaced with allegedly 92tkm, the mill ran as well. This morning it was then -22 degrees. Once glow and start and the box was immediately there. Was very happy for the first time. Then 15 m up to the highway at approx. 2000 u/min, so that the engine had about 80 degrees. On the highway then the shock. A maximum of 2500/min, that means in the 5th approx. 110 km/h. There was nothing about it, immediately stutter, etc. I then turned up the engine in the stand, went also only up to almost 3000, stayed there and after twice stutter then on 4000. Now my question: is this due to the cold and thus the liquid of the diesel? If the broth becomes viscous I can well imagine that the fuel pump e in the tank no longer succeeds, and the requested injection quantity can no longer operate. Thanks already Rexi Kleiner postage: Diesel filter before 2000 km new (for 12 Euro by man). Last refuelling the day before yesterday (full). At -10 degrees no problems.