The brake pads are like the frontline soldiers of your Audi's brake system. They are what clamp down on your rotors and halt your vehicle. Being where the battle is has its consequences and problems may arise that could affect the brake pads performance. Read on to learn about some of problems that could affect an Audi A3's brake pad and their causes.
Once you see this light turn on, it means that your brake pads have worn down considerably. Wires inserted inside the Audi brake pads make an electrical circuit in the brake system. Wear down the pad enough and the connection is broken, triggering the light. Replacing the brake pads is all that is needed to fix the problem. If the light is still on even after installing new brake pads, you might have a problem with the brake pads. This usually occurs with non-OEM brake pads that aren't built specifically for an Audi vehicle. If this happens with an OEM brake pad, then you likely have a defective unit that needs to be replaced.
Squealing noises on your Audi can definitely be annoying; but as long as your brakes are functioning normally, there is no need to worry. The noise is normal for most newly installed pads and will go away after some time. For some other pads, it is the materials of the brake pads themselves that cause the noise. This is especially true for semi-metallic pads. If the sound is unbearable, your may have no other recourse but to replace the pads.
The problem stated above is what is popularly known as brake fade. This problem is common to many vehicles, not just the Audi A3. Stepping on the brakes causes friction; stepping on the brakes lots of times causes a lot of friction that leads to heat build-up. The brakes stop being effective when they're hot; you may feel that the brake pedal is spongy or perhaps the vehicle just won't stop normally. This is a problem common to cheap brake pads. Swapping your brake pads for higher quality ones may be costly, but they will handle the heat much better.