Features: Strictly follow OE manufacturing standards and the reference OE number is 1K0907255C, 1K0907255A, 1K0907253A, 1K0 907, 255C 1K0, 907 255A, 1K0907253D, 1K0-907-253-D. The mainly function is to monitor tire internal pressure and allow you know the tire condition. High level of accuracy and sensitivity, enhance safety of your vehicle. A aftermarket replacement, directly replace your old one. This is non-OEM product! Specification: OE Number: 1K0907255C, 1K0907255A, 1K0907253A, 1K0 907, 255C 1K0, 907 255A, 1K0907253D, 1K0-907-253-D Color: Black Material: Plastic, Metal, Rubber Frequency: 315MHz Thread Diameter: M8x0.8 Size: 7.2x7.2x2.5cm / 2.83"x2.83"x0.98"(L*W*H) Fits for for Audi A3 2006-2013 for Audi Q5 2010-2016 for Volkswagen Jetta 2006-2014 for Volkswagen Golf 2010-2014 for Volkswagen Passat 2006-2010 Package Included:1 x Tire Pressure SensorHow to Install and Use: Step 1: Remove the tire and the tire pressure sensor/valve; (the whole tire needs to be removed) Step 2: Install the newly purchased product; Step 3: After the product is installed, please stop the vehicle and turn off the engine for about 20 minutes, and keep the remote control key 5 meters away from the vehicle; Step 4: Start the vehicle and keep the vehicle running at a speed of more than 25 km/h for 5 to 10 minutes, then the product should be matched; Step 5: If the temperature is low, such as, below 0°C, the matching time may be longer, which is normal, please wait patiently for the matching. If you still have problems, please .