How does the starting system work in Audi A5?

I am curious about the technicalities of the starting system in Audi A5. How does it work?

The Audi A5 starting system uses a keyless entry system, where the car can be started without the traditional key. This is made possible by the communication between the key fob and the car's computer. The key fob sends a signal to the computer, which verifies the identity of the key and allows the engine to start.

I have been driving an Audi A5 for 5 years now and have never faced any issues with the starting system. One tip I have is to keep the key fob away from any electronic devices, as it can interfere with the signal and cause the car not to start.

The Audi A5 starting system also has a backup mode in case the key fob battery dies. You can manually insert the key into the car and start the engine. However, it is recommended to replace the key fob battery as soon as possible.