Why does my Audi A4 produce white smoke from the exhaust?

I just noticed that my Audi A4 is producing white smoke from the exhaust. What could be causing this and how can I fix it?

White smoke from the exhaust is a common issue in cars and can be caused by a variety of reasons, including a blown head gasket, a cracked engine block, or a failing oil seal. It is important to get your car checked by a mechanic as soon as possible to avoid further damage.