First a friendly HALLO from one who has only read along so far. Terracan 2,9 2005, switch, 290 tkm. Short history: I was the day before yesterday with our horse trailer at the TÜV and should, as usual, put on short and then brake to test the rewinding device. So I latched on the brake quite once. When I then drove away from the TÜV again, I realized that I had no brake pressure anymore. Then (very careful) I went home and on our stage – brake hose in front of So new hoses bought, built in and ventilated. And now it starts: I get no brake pressure! Already several times ventilated – without success. If I pump several times briefly in a row, some pressure builds up, but is immediately away again. After several times ventilating, today again our pressure fan can be filled with rims (5 liters) and all wheel brake cylinders can pass through with 3 bar (each just under one liter). Only very few small bubbles came. is: no brake pressure! I’m really at the end! When I pump quickly and violently, some pressure builds up, but it disappears again. When I step through the pedal slowly, pressure is absolutely zero. It feels like a line is off. But then the brake fluid should become less and it should pee out somewhere – but it doesn’t. I’m an optimist, but so slow . . . . . . . . Does anyone have an idea?