are 190 bhp passats growly ?

[roadwarrior]

my recently bought 190 sounds very growly pre turbo kick in so i still suspect the turbo or the actuator, what pipes are involved that might be leaking, turbo is fine once it kicks in but its very reluctant in first making me wonder if something is amiss, im guessing the actuator is electronic now as opposed to just vacccum controlled but i just dont know as i have yet to get a workshop manual showing the layout and parts, these days its all on pdf files - can anybody point me to where ? has anybody got a 190 anywhere near burton on trent that i can compare too ?