Body Restoration — General Information (Renault Symbol 1)

Carry out body restoration immediately after detecting a defect. The body is most susceptible to corrosion. According to the degree of damage, corrosion can be divided into three groups: cosmetic, penetrating and structural.

Cosmetic corrosion appears on external surfaces in the form of spot rust in places where the body comes into contact with overhead parts - decorative trims, lights, as well as on the edges of door flanges, hood, trunk lid. This type of corrosion appears primarily where the paintwork is damaged. Worsening the appearance of the car, cosmetic corrosion, if no measures are taken, progresses and turns into penetrating corrosion.

Penetrating corrosion affects the most difficult to visually check places of accumulation of moisture and dirt. It is detected when the damage caused by it is difficult to repair. The inner surfaces of box sections, surfaces of front and rear wings, thresholds and floor crossbars, the floor itself from the passenger compartment side, and the inner cavities of the doors are most susceptible to its impact.

Structural (through) corrosion affects the attachment points to the body of the power unit, chassis, elements that form the supporting frame of the body. Particularly susceptible to structural corrosion are elements that experience abrasive-corrosive effects - the bottom, thresholds, wheel arches, front and rear fenders. The loss of mechanical strength of these elements leads to the failure of the entire car body.

This article is taken from the website: renaultbook