How to troubleshoot a Bluetooth connectivity issue in an Audi vehicle?

I recently purchased an Audi vehicle and I'm having trouble connecting my phone to the car's Bluetooth system. Every time I try to pair my phone, it disconnects after a few seconds. What could be causing this issue and how can I fix it?

First, make sure your phone's Bluetooth is turned on and in discoverable mode. Then, try resetting the car's Bluetooth system by turning it off and on again. If that doesn't work, try deleting your phone's previous pairing with the car and setting up a new one.