Screeching sound on cold start (Video)

[garfield81]

Every morning after a cold start I hear a loud screeching sound during the first minute after startup. The screech is random so it could occur in the first 10 seconds or occur after 20 seconds and last 15 seconds but it does occur on every cold start.

So I take the car to the dealer and he advices that I will need to leave the overnight so he could reproduce the sound. The next morning he says he could not hear anything so we mutually agree to leave the car for another night and he tries the next morning and he doesn't hear anything again. Since he couldn't reproduce the sound he couldn't work on it but he adjusted the belts, tensioner, etc.

Now I bring it back home and the next morning I hear the screech and everyday since. Could it be that the car gets a lot colder since it's parked in the garage vs being outside on the lot with the dealer?

The video can be viewed at YouTube - X5
PS Notice the screech right after startup and then it builds up around 30 seconds into the video for about 5 seconds.