roxbury51

Audi A6 2005 3.2 L Quattro
On this video, I hear strange noise from the throttle area. This is after I changed the engine valve cover gasket due to leak. On assembly, I broke and repaired vacuum hose. I also took the time to clean the throttle body. I put it back together and had the vagcom throttle adaptation. No codes registering.

The car hesitates and jerks on acceleration and highway speeds. I suspected a vacuum leak but I don't see or notice any. Do I need a new Throttle body which is very expensive or any part like MAF. I do have a Vagcom on hand. Im open to any opinion thanks

gt500blue

Hi, I'm new here, but not new to my A8. I also have vag and there are no throttle body codes. I did the procedure to calibrate, but did not help. My car is experiencing this same exact issue as the video shows below. It is repeatable when I give the pedal a quick rev to a couple thousand RPM and on the way back down, the throttle makes this fluttering action. I was hearing a flapping sound and started to look around the forum. I found this video although I have not taken mine apart yet to see it vibrate like this, the sound is exactly the same. I used my mechanics stethoscope and it's definitely coming from the throttle valve. Does anyone have an idea if I need to simply replace it or could this be caused by some other electronic or vacuum related issue?

Thank you!

gt500blue

Sorry! I meant to post this in the A8 section!