Features:The mainly function is to monitor tire internal pressure and allow you know the tire condition.This is non-OEM product! Specification: OE Number: 0045429718, A0045429718, 0025407917, 0025406817, 0025406617, 0045425618 Color: Black, Silver Tone Material: Plastic, Metal, Rubber Frequency: 315MHz Thread Diameter: M8x0.8 Size: 7x6.8x3cm / 2.76"x2.68"x1.18"(L*W*H) Fits for for Mercedes-Benz CL600 2007-2010 for Mercedes-Benz CL63 2008-2010 for Mercedes-Benz CL65 2008-2010 for Mercedes-Benz CLS63 2007-2011 for Mercedes-Benz E320 2009 for Mercedes-Benz E350 2009 for Mercedes-Benz E63 2009 for Mercedes-Benz S550 2007 for Mercedes-Benz S600 2007-2010 for Mercedes-Benz S63 2008-2010 for Mercedes-Benz S65 2007-2010 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 .