The Usual Suspects in a Problematic BMW 745i Brake Pad Set
Brake pads are one of the most important components of your brake system. Unfortunately, the pads are also prone to a number of problems that can seriously affect their performance. As soon as you sense some trouble with the pads, diagnose the problem immediately. The last thing you'd want is a brake failure. Here are some common problems with a BMW 745i Brake Pad Set and their usual causes:
If your brake pads start giving out a high-pitch squeak that won't seem to go away, then they are almost worn out. Some brake pads are equipped with metallic shims that make a sound as they grind away on the brake rotors. The purpose of this is to warn drivers about the worn-out state of the pads, so they can have them replaced immediately. If a newly replaced set of brake pads gives out a squealing noise, you will need to break this in first. Some brake pads, especially the metallic ones, are notorious for being noisy. If you've replaced your old brake pads with these, you'll probably have to live with the noise. The last thing you'd want to hear is a grinding sound. It means that the brake pads have completely worn out, leaving the metal shims to grind away on the brake rotors. If this is the case, install a new brake pad as soon as possible.
Vibrations when stepping on the brake pedal
Vibrations are a sign that your rotors are warped. This could seriously affect the braking power of your brake pads since they need a smooth and flat surface for them to work effectively. A visual inspection of the brake rotors will let you know the state they are in. Warped rotors may need extensive repairs to have them fixed, but more often than not, the only solution is to get a new brake rotor.
Don't be worried if the brake pads you just installed don't seem to be working a hundred percent straight off the bat. Brake pads usually have to go through a breaking-in period characterized by moderate braking. In time, brake pad performance will greatly improve, but in the meantime, you have to hold your racing dreams for another day.