Hi Folks, Just wondered if anyone could help me. I have an 06 Plate A4 S Line 2.0 TDI that is 1 month (Darn) out of warranty. It started making a loud bird cheeping noise on acceleration and I thought it was the turbo. Took it to Official Audi Dealer and they had a look (£55 grrr). Heres what the job sheet says: Work requested: Attend to car, at 2000 revs and upwards makes a loud cheeping noise. Diagnose and report to customer. Work completed: Attended to turbo like noise from the car. Found air leak from EGR cooler. New EGR cooler and gaskets required. Quote £488 inc Vat. 2.0TUs (See Castrol system) I stated the fact the car is just out of warranty and after 10 mins they agreed to 40% off. I intend to take it to a Audi independant for a 2nd opinion. The only thing that concerns me is that the noise sometimes dissapears, yesterday I did 30 miles stop start with no bird cheeping in sight, surely if it was an air leak it would always be there. Any ideas Much appreciated.