I got a cost estimate of approx. EUR 1,500 from the super-arrogant Porsche-Zentrum in Wiesbaden for this. I only had 30,000,- km on the speedometer. In this area (between engine and gearbox) there should be problems more often or possibility of culling ? I am grateful for every hint ! PS: what is a Simmering of which in this context is partly spoken of ? Thank you Birdiebook