If will hear screeching noises while braking or squeaking noises coming from the disc brake rotors,
If your car drifts directionally when you apply the brakes and the braking distance has increased significantly,
If you feel unusual vibrations on pressing the brake lever,
or if you come across any symptom of brake pads, brake discs, brake calipers, brake fluid, ABS pump, brake cable, hand brake, ABS sensor I recommend driving down to my garage at 157 Richmond Road, Dublin 3 at the earliest.