Genuine OEM Audi Brake Light Sensor, part number 4F0945459B. This critical component is responsible for detecting when the brake pedal is pressed, activating the brake lights and signaling various vehicle safety systems. It is typically located near the brake pedal assembly. Weighing approximately 0.07 kg, this sensor is built to precise specifications. Using a genuine OEM sensor ensures accurate and consistent signal characteristics, which is vital for the correct functioning of safety-critical systems like ABS and ESP.

Catalogue entry: SENSOR.