I just purchased a 2005 A3 3.2 5 door. It's a lovely car! I've just been looking at the engine and I needed to know the name of a specific part. Please see pic. I have outlined it in red. Apologies as I am no expert!
The black tube going across is patched up by some duct tape on my car so not sure if that would cause any issues?
I will be taking my car in for a service at AMD soon as its due, so was hoping to see if I can get that part (if it is a problem) and get it fitted during the service.