Originally Posted by British

I had the annoying vacuum noise, but no leak, it just had an irritating noise whenever it ran. The interior is so quiet, it felt amplified, since it's bolted to the car.

I had them replace it. Sound got better, but not by much.

I think it needs some dampner between the pump and whatever it's bolted to, having already thrown $600 at it, I don't feel the hurry to do anything more. I was thinking it was wearing out, and I didn't want a failure, so I was driven to replace it, I know that pump works really hard on this car.

Anyway, this might just be a 2005 model irritant that doesn't exist in later years. Replacing the pump, for me anyway, didn't really solve the problem.

Originally Posted by dangme55

Here is the part number and description from the cheap part I bought on Amazon

Bapmic 037906283C EGR Vacuum Solenoid Valve for Audi A3 A4 Volkswagen Eos Jetta Passat

This is the 'good' Pierburg/OEM valve on EBay @$36
Pierburg OEM Air Intake Control Purge Valve 7.22880.01.0 for Audi VW Porsche

I believe Bapmic part number is what you will find if you search the Bentlley IETIS/IPC or Scuderia or Flying Spares. I believe it is used in several places on the car. Variously it is the turbo boost control solenoid, waste gate solenoid, purge valve yada yada. All in all a rather inexpensive part that is usually hidden deep where you have to play hell or drop the engine to replace it.

Originally Posted by 2007Conti

Which side under the cover was this? Driver or passenger (US version)? I'm looking for anything that might fix my problem.