Audi Repair Questions? Ask a Mechanic for Answers ASAP
The only place I would be getting these from is the local Audi Dealer. You can find your nearest dealer here: Audi Dealer Locator.
Alternatively you can source Audi Parts from TPS who are the Parts Supplier for VAG Group. You can find them here: Trade Parts Supplies Locator.
They would be my first preference for Parts.. If for some unusual reason they can't help then try Euro Car Parts (Euro Car Parts Locator) but ensure that you purchase a good quality part such as FAI because the last thing you want to do is to be pulling the Engine out in another year!
No problem at all.