I went over a speed bump yesterday and it hit the bottom of my car. Something is hanging off of it now (behind the right front tire) and when I was driving it, it‘d be hitting the tire making a grinding noise. It‘s a flat metal square, like the cover to something. I have to take it to the mechanic but can‘t drive it fast or that thing might break even worse but I can tape it so it‘s not hanging by the tire. I have a 2001 bmw 540i.
The flat metal square is probably part of the suspension system in the car. I wouldn't worry too much about it. the square isn't a mechanical part and it probably isn't part of a mechanical part that moves or rotates or pumps. Heat is created by friction and compression for the most part in internal combustion engines. Anywhere else other than the transmission, tires (rubbing on the ground), brakes, or drive shaft should not heat up significantly. Go ahead and tape it.
