Which type of repair is described as cutting out rust damage and welding in a new panel?

The type of repair involving cutting out rust damage and welding in a new panel is known as panel replacement. This technique is essential in situations where the damage is too extensive for simpler fixes, such as applying body filler or glue. By removing the affected area and installing a new section, this method ensures that the integrity and strength of the vehicle’s body are maintained, making it a crucial repair for safety and durability.

In contrast, other methods listed, such as body filler repair, are used for smaller dents and surface imperfections where the underlying structure of the metal doesn’t require replacement. Glue repair typically involves adhering parts together, which is suitable for less invasive fixes, and sanding repair focuses on surface smoothing rather than structural repair. Panel replacement specifically addresses situations where a significant section of the vehicle must be renewed to restore proper function and aesthetics.