Ed. wrote:she says they took it in three times and its "as tight as it can be." i dont really believe that though. if it makes sense she says its worse with the ac on when you start the car..?
Ed! Good to see you here -- welcome to the board. I should have recognized the name the first time -- I see you all over Bimmerboard these days.
Loose belts are more prone to squeal at startup when the car is cold. Given that it's worse when the AC is on, it's probably the AC belt (which may also be the alternator belt as mentioned earlier -- I'm still on the learning curve myself). Sounds like it needs to be tightened. Same thing was needed on ours.
Good luck.