Hey fellas, I just bought a 95 A6 and its been an awesome experience. Today we were going to Bondi Beach (its in Australia), and my cousin was driving the car. When he wanted to overtake another car in front of us by using the right lane by mistake he drove over the stone barrier(which was around 15-20 cm tall), and as a result cars bottom was hit.. after that a weird sound comes from somewhere close to engine and while the car revs somewhere between 3000-4000 the car's speed is less than 80km/h..

Video of the engine while runnin

http://www.youtube.com/v/vNqrDfx1zXg

 

I would have a mechanic check this sound out ASAP, and stop driving it! You could be leaking oil or even transmission fluid.

 

I took it into a mechanic, I was told that the transmission box is damaged but its drivable.. As it is officially public holiday today they wont be able to get parts to change it but hopefully I will take it to them next Monday to replace the transmission box(or to change the fluid in it and check out the filter)..

Nevertheless I took it into a normal mechanic, not a official Audi service point so if anybody else has an idea please help me out.. thx in advance