Hi this is my first time so i am hoping that being new to it that someone can help,my 330d auto e46 2002 has problems with the parking sensors,i have done the clicking test and found one that was not working,replaced it but still have same long beeeeeep then nothing else.taken them out cleaned them checked wires all ok,can anyone give me some advice before i prang my car.also i get a loud screeching noise from what seems to be the turbo,but only when its put under hard acceleration it sounds much like a belt when slipping but all these have been checked and are fine.any help would be great thanks paul o. :wacko: