Volvo does not recommend the use of long-life or durable paint protection coatings; some of which may claim to prevent pitting, fading, oxidation, etc. These coatings have not been tested by Volvo for compatibility with your vehicle's clear coat. Some of them may cause the clear coat to soften, crack, or cloud. Any damage caused by paint protection coatings may not be covered under your vehicle's paint warranty.
Note: Using an automated vehicle wash may not be as thorough as going over the car with a sponge and water manually. It is critical to keep the underbody clean, especially in the winter. If you use an automated vehicle washer in the winter, be sure it has an undercarriage wash, as some do not have the capability of washing the underbody.