How do I change the tire pressure in my Audi A5?

I recently noticed that the tire pressure in my Audi A5 is lower than normal. How do I change the tire pressure and what should it be set at for optimal performance?

You should regularly check and adjust your tire pressure to maintain optimal performance and safety. To change the tire pressure, first find the recommended pressure for your A5 in the owner's manual or on a sticker inside the driver's door. Then, use a tire pressure gauge to check the current pressure and add or release air as needed to reach the recommended level. It's important to make sure all four tires are at the same pressure level. If you're unsure or uncomfortable doing this yourself, it's best to take your car to a trusted mechanic.