B7 A4 N75 valve replacement (2005-2008)

If you are getting an over boost issue, car goes into limp mode, P0234 code, or random boost pressures building, this could be what is wrong. I am no Audi mechanic and I know very little about these cars and the German sorcery that they use to make them but they don’t have to be as bad as everyone thinks they are to fix or work on. Sometimes... The N75 valve is an easy and cheap DIY and it could be the fix for your basically undriveable Audi. Hope this helps!