When the engine start/stop button is in the OFF state, the steering wheel is locked to prevent theft. When the door is opened or the smart key is removed from the smart key cylinder, the steering wheel is automatically locked. When the engine start/stop button is in the ACC state, the steering wheel will automatically unlock. No noise, strong power, durable and high-quality performance. Simple installation, no complicated tools required, convenient to use. Specifically designed to fit W204 W207 W212. This is a 1/4" NPT 45-degree tire inflator valve connector. It features a solid steel chuck, precision machined for leak-free performance. Includes a built-in shutoff valve and 45-degree head for easier connection. The ball foot tire chuck is ideal for tire inflation on various types of tires. A practical and useful product. Features: Solid steel construction, high strength, high performance, and high reliability. Built-in shutoff valve and 45-degree head for easier connection. Ball foot design ideal for tire inflation on various tires. 1/4-inch NPT female threads. Easy fit to valve for simple installation. Specifications: Material: Steel Color: Silver Size: 3.3 x 2 cm / 1.3" x 0.79" Diameter: 1.8 cm / 0.71" Type: 1/4" NPT Head Angle: 45 degrees Package Weight: 33 g Package Included: 1 x Tire Inflator Compressor Valve 1 x Wheel Lock Motor Note: Please allow 1-3 cm error due to manual measurement. Monitors are not calibrated the same, so the item color in photos may differ slightly from the actual object. Please refer to the physical product as the standard. Please double check the part number of your item; compatibility information is for reference only. If you are unsure about the item, before purchasing to avoid returns. Please note that new and old versions of this product may be shipped randomly; ensure you are comfortable with this before ordering.