today i have brought my first audi. its a w reg 1.9 tdi b5 (i think) it doesn't have a red i or anything so presume its a 90bhp but any extra info would be a great help. i have had to replace the actuator today, was fiddly to take off but not to hard. i now need to know the correct way to install it as i dont want to run to much or little boost so any info or pics etc would be really helpful. thanks in advance and as this is my first audi anything extra you can tell me about the car will be a big help as i like to mess at the weekends. thanks for any help.