Hello Together, our Lupo 1.0 (grey import with AHT engine) has been clacking loud for some time. The noise is dependent on speed and the first suspicion was found in the workshop with the hydro-pumps. Now the following is strange: The Lupo sometimes starts cold (1-2 days of service life) as well as with hot oil temporarily without any clacking. Sometimes the engine then runs e.g. 25 km “silk soft” without clackers. But then the clacking occurs again during the ride or at the next cold start. If the hydro-pumps were slow to flatten after all, the Lupo would have to keep constantly with the cold engine (hydros no longer have oil), or (if they are more worn out) with the very hot engine (oil is very thin) always make these sounds? Does anyone know what might be another cause? A video of the noise (stand gas and with speed increase) can be found at the following link:https://youtube.com/RkSQGDqAxY?feature=Q7.