Hello. Recently my sister put on the handbrake in the city and it didn't hit her after she took it off. She came home like this, the stench in the garage was quite big. The ABS indicator light is on on the clocks and it went out as the car cooled down. I took off the rear wheel and the brake disc was red at the edges as if someone had painted it with paint (kind of rust), the pads looked like they were completely removed the plug from the ABS indicator and checked the resistance on the sensor was 1.1kOhm, I did the same with the sensor from the front wheel , the result was similar so I assume that the sensors are fine. Now the car drives and the brakes work fine. So my question, should I do something, e.g. change the blocks (they have been changed recently) or not to worry about anything? I will add that this is Opel Astra II 1999.