Why does my Audi A2's steering wheel shake when I brake?

When I apply the brakes in my Audi A2, the steering wheel starts to shake. Can someone explain why this is happening and how I can fix it?

This is likely due to warped brake rotors, which can occur over time due to wear and tear. It can also be caused by uneven tire wear. It's important to have a mechanic inspect your brakes and tires to determine the root cause. In the meantime, try to brake gently and avoid abrupt stops.

I experienced this issue with my own Audi A2 and it turned out to be a problem with the wheel bearings. I suggest having a mechanic check and replace them if necessary. It's not something you want to ignore, as it can lead to more serious problems down the road.