This car door lock set is a must-have for any vehicle, offering a variety of functions and bringing convenience. This central door locking system allows the driver to lock and unlock all the doors and release the trunk within a certain distance. It will also help you to locate your car by simply pressing the lock button on the remote control key. This central door lock set is universal for 2 and 4-door vehicles and suitable for all vehicles with 12 Voltage. Attention: The remote is universal while the key blade is only applicable to automobiles of Audi, Skoda and VW including Passat, Golf, Polo and Bora. If you plan to apply it to cars of other brands, a replacement of the key blade is needed. But do not worry because it is pretty easy to do so. Just use a screwdriver to undo the screw, replace the key blade with a new one and tighten the screw.