AGR Valve Closed: When & Why?

Hello Audi fans!
I'm curious to know, at what engine speed the AGR valve is fully closed. I think it might be around 3000 RPM?
Best regards,
Holger

Hi Holger,

There is no fixed closing speed.

Take a look at the specialized article on agricultural technology.

Hello, I understand that initially it's open, but it needs to be closed under full load! When could it then be fully closed? What if it doesn't close properly above 3000 RPM, would that definitely result in poor performance? Best regards, Holger.

Although I'm not an Audi fan , but:
As soon as you apply full throttle, the auxiliary air valve (should) close, regardless of the engine speed. Does 'full throttle' mean the same thing as 'full power'?
If you don't close the air-fuel mixture control (AGR), you'll get black smoke, and logically, less power, because part of the oxygen needed for combustion is missing.