changs4

does anyone know one know where is the bypass valve located? trying to change to 110 valve...TIA.

A4Jared

about 2 feet from the front bumper under the passenger side headlight

Rudso

wat dose a by pass valve do?

tuneda4

<img src="http://pictureposter.audiworld.com/21016/a4_engine.jpg">

FireBirdSC

2 feet is too far in... I say a foot in

Rob KM.

The bypass valve is used during deceleration. It diverts the air. When you are on decel the throttle plate is closed. It diverts the air so you dont have turbo boost pressure backing up on the closed throttle plate.

changs4

for my car and in my country, it is under the driver side headlight..thanks for all the info anywher