What are the common causes of rust in the Audi 80?

I recently purchased an older model Audi 80 and noticed some rust spots on the exterior. I am wondering what could have caused this and if there are any preventative measures I can take to avoid further rusting.

One common cause of rust in the Audi 80 is exposure to moisture. This could be from driving in wet or snowy weather, parking near the ocean, or even rainwater seeping into small cracks in the paint. In order to prevent rust, make sure to dry off your car after driving in wet conditions and avoid parking near bodies of water if possible.

Another potential cause of rust in the Audi 80 is the use of salt on roads during winter months. Salt can quickly corrode metal and lead to rust. If you live in an area with heavy snow and salt usage, it is important to regularly wash your car and apply a protective wax to help prevent rust.

Mechanical issues can also contribute to rust in the Audi 80. For example, if there is a leak in the exhaust system, it could cause water to build up and lead to rust. It is important to regularly check and maintain your car's mechanical systems to prevent rust.