Genuine OEM Volkswagen Brake Light Switch, part number 113945515H. This switch is an essential component that activates the vehicle's brake lights when the brake pedal is depressed. It ensures that other road users are alerted when you are braking. The part is located in the brake system, typically near the brake pedal. Manufactured to precise specifications for reliable operation. Genuine OEM parts guarantee the correct electrical and mechanical function required for safety system activation.