How do I check the coil spring replacement for my Audi A4 B8?

I'm planning to replace the coil springs on my Audi A4 B8, but I'm not sure if I need to replace just the front or all four. How can I check which coil springs need to be replaced?

To check which coil springs need to be replaced, you will need to do a simple bounce test. Push down on each corner of your car and release. If the car bounces up and down more than once, it's a sign that the coil spring needs replacement. It's recommended to replace all four coil springs at the same time to ensure balance and stability.