I just tried to start my Q7 and didn't want to start, the starter was going for like 4 seconds, so I return the key to the off position and a loud Bang and smoke came out the engine compartment, when I check, I saw the smoke coming out the lower part of the intake maniford, it was separated from the main piece, after taking it to the shop they find out that a back fire cause to finish separTing the piece in two, this part seems to be pressurized from factory since is just a gasket and no presence of glue found, this is the worst thing I ever seen on Audi, very poor engineering if you ask me. I paid $850 for the new maniford and $500 labor