2008M3

What is this metal on metal noise...you hear it the best around the 7-12 second mark...it is especially loud on cold start in the morning when you put the car in "drive" but don't move the car forward. It also is prevalent on hot days when you park the car outside and just start the car. The sound gets louder when you turn on the a/c during the hot day.

2008M3

This loud click noise usually happens on cold start. The process is as follows:

1. Turn on car
2. Release the parking brake
3. Put the car in reverse
4. Release the brake pedal
5. LOUD CLICKING NOISE (you can hear it best around the 5 second mark)
6. back up car

Sevn86

Wow, never heard that before. did u check to see if your front license plate isnt loose? is it the fans?

2008M3

Well...it even kind of vibrates the interior of the car, you can somewhat feel it