Why does my Audi A2 engine shake when starting?

Sometimes when I start my car, the engine visibly shakes before settling down. It doesn't seem to affect performance, but it worries me. What causes this and how can it be fixed?

This is a common issue with Audi A2 cars and is usually caused by a faulty engine mount. The mount can become worn or cracked over time, leading to vibrations and shaking during start-up. It's important to get this fixed as soon as possible, as it can cause further damage to the engine.