Hello community! I have a riddle for you, maybe someone has an idea! I had the gearbox and the clutch changed today at my Audi and both funks again like an one! But: If I drive between 0 – 40 km/h, whether I’m speeding or slowing down, no matter if I’ve uncoupled or uncoupled, whether the air conditioning is switched on or off you can hear a speed-dependent “crack-crack-crack”, you could describe it as a loop (“egging”. If you hear before changing the gearbox, you can’t relate to the new gearbox! But the mystery of the matter is: As soon as I turn off the engine when the cracking is clearly audible, the cracking is also gone. If I then start the engine again in the rolling of the car, the cracking is immediately heard again. Apart from starting the engine and making out anything else, I have done nothing else. So it can’t be done on the clutch, the gearbox or Who has an idea or even knows the phenomenon??? I am very grateful for suggestions! Greetings, Dominik Autodaten: Audi 80 B4 Quattro 2.0E, engine identification letter: ABK