Locate Audi A4 Electronic Body Temperature Sensor & Audi A4 Internal Control Module Knock Sensor Get Audi A4 Throttle Body Control Sensor. Maintaining the body control sensors on your Audi A4 is crucial for ensuring a smooth driving experience. Regularly cleaning the sensors and checking for corrosion can prevent malfunctions that may otherwise necessitate replacements. Indicators that your sensors might need replacing include erratic interior lighting, unresponsive power windows, or a faulty central locking system. When selecting new body control sensors, opt for OEM or high-quality aftermarket options that are compatible with your A4's specific model year to guarantee functionality. Proper installation is key, so ensure that the sensor is correctly aligned and securely fastened to prevent future issues, keeping your Audi on the road with precision.