How do I check the tire pressure in my Audi A4?

I recently noticed that my Audi A4's ride feels a bit bumpy and I suspect it might be due to low tire pressure. How can I check the tire pressure and what should I do if it's too low?

First, find the recommended tire pressure for your Audi A4 in the owner's manual or on the sticker inside the driver's door. Then, using a tire pressure gauge, check the pressure of each tire when they are cool. If any tire's pressure is lower than the recommended PSI, use an air pump at a gas station to fill it to the correct pressure. Make sure all four tires are at the same pressure for a smoother ride.

I had a similar issue with my Audi A4 and I found that using a digital tire pressure gauge instead of the traditional one was much more accurate. Also, check the pressure regularly and adjust it as needed, as tire pressure can change due to temperature fluctuations.

Don't forget to also check the spare tire's pressure. The last thing you want is to have a flat tire and find out that the spare is also flat.