https://www.openlearning.com/u/boyerbehrens-skn4mx/blog/AudiA4CarKeyReplacement11ThingsYouReLeavingOut What is the Audi Advanced Key? are designed to provide comfort and convenience, which is why the new models in our showroom feature keyless entry and start. This technology allows you get into your car and start driving, while keeping your key fob in your pocket or purse. This system works through proximity sensors located in the doors and trunks, which are connected to an electronic key radio within the key fob. Here are a few points you should know concerning Audi Advanced Key. 1. Proximity Detection Audi proximity detection enables you to open and get into your car without having to remove the key from your pocket or purse. The access and authorization system works through automatic data exchange between the convenience key and your vehicle, allowing you to unlock the trunk and doors, and even start the engine with just a touch of a sensor button on your key. A sound-based proximity sensor is also known as a capacitive proximity sensor, uses acoustic waves to detect the presence of objects in close proximity. The sensors make use of an oscillator that generates a signal that is then transmitted through the air and picked up by an audio microphone, which transforms it into an audio file. The audio files are examined to determine how similar they are and how close they are. If they are close enough, the system will transmit a wake-up signal to key and will send an ID signal that is in line with the vehicle. The first step to a more convenient driving environment is proximity detection. The Audi advanced key also comes with remote start which lets you start your car's engine from outside of the range of your key FOB. This can be useful when you're loading groceries into the trunk, securing children in their seats, or packing for a family outing. Audi pre sense basic, in addition it is a safety feature that helps you avoid accidents by taking preventive measures pri