This is my first post so go gently on me!
I have an intermittant problem on my 07 Audi a4,3.0 cab Quattro I can start. Car, thrash it, or drive it normally and it's absolutely fine as lon as I don't turn it off! If I go anywhere and stop turn off then restart within 5 mins the car goes into limp mode. I have no lights n dash or any other worrying noises etc. I once had the emissions light me on the dash and had it put on a computer to see what the fault was.
It reported two faults:
EGR valve intermittant circuit flow restriction .
turbo charger outside parameter circuit A
Im desperate to fix this as its spoiling a fantastic experience
You guys are my last chance.
I hope someone has experienced this before and can point me I the right direction.