Why am I having trouble starting my Audi A8?

I recently purchased a used Audi A8 and I'm having trouble starting it. Whenever I turn the key, there is a clicking sound and the engine won't start. Can you provide some possible reasons and solutions for this issue?

It's possible that the battery is just dead and needs to be replaced. You can try jump-starting the car or get the battery tested at a mechanic.

Another potential problem could be with the starter motor. It might be worn out or not functioning properly. I recommend taking your car to a certified mechanic for further inspection.

Make sure that the key is inserted all the way into the ignition. Sometimes, if it's not fully inserted, the car won't start. If this doesn't solve the issue, it could be a problem with the ignition switch.