What is the most common cause of rust on an Audi 80?

I have noticed some rust forming on my Audi 80 and I want to prevent it from getting worse. What should I look out for and how can I prevent it?

The most common cause of rust on an Audi 80 is exposure to salt and moisture. Be sure to regularly wash and wax your car, paying extra attention to the undercarriage.

Another common cause of rust on an Audi 80 is chips or scratches in the paint. Be sure to repair any damaged areas as soon as possible to prevent rust from forming.

If you frequently drive on rough or gravel roads, that can also lead to rust on your Audi 80. Consider getting mud flaps or protective coating to prevent this issue.