Your brake pad wear sensors send the signal to your dashboard alert light when the pads start to wear thin. This keeps your rotors in good shape and prevents premature wear from over-worn pads. When it comes time to replace your brake pads, make sure you have the proper sensors for replacement.

This replacement brake pad sensor wire is the perfect compliment to new pads. Some pads do not come with sensor wires, so a replacement brake pad wear sensor wire is needed. Often damaged due to abrasion and exposure to the elements.

A quality part from Genuine VW/Audi offers you a factory replacement.

If it's time to replace your pads and sensors, then you should also replace your rotors to get maximum braking performance. With a new pad and rotor set on your vehicle, stopping will be completely restored. Enjoy the stopping you liked when you first obtained your vehicle.
With new pads and rotors, you need to make sure they are bedded and mated with each other. Check online for the proper bedding procedure to ensure long life and quality braking.