Restoration of areas affected by corrosion (BMW X5 E53)

Restoration of areas affected by corrosion should be carried out immediately upon detection of traces of corrosion on the paintwork or in areas where the mastic has peeled off.

The most radical method of removing rust is mechanical, although more labor-intensive. A combination of chemical and mechanical treatment of the affected areas is the most appropriate and effective.

The restoration of areas affected by corrosion is carried out in the following order. To facilitate the removal of rust, wet the damaged area with white spirit or "Omega-1" car cleaner. Remove corrosion products with metal brushes, scrapers of various shapes, spatulas, grinding wheels and sandpaper on a fabric or paper base.

Clean damaged areas from rust, old primer and paint, bitumen or plastisol coating until metallic shine. Rinse cleaned areas with water, dry and degrease them.

Apply a phosphating agent such as "Phosphator" with a brush and dry the treated surface for 25–30 minutes at a temperature of 18–20°C.

Apply a quick-drying phosphating or passivating primer with a low drying temperature to the prepared surface, such as "VL-2" or "VL-08" (phosphating: drying temperature 15–20°C, drying time 24 hours) or GF-073, NC-097 (passivating: drying temperature 15–20°C, drying time 4 hours). After the first layer has dried, apply a second layer of primer.

Let it dry slightly and paint it with decorative enamel.

Effective control of structural corrosion is the most labor-intensive and expensive. It involves inspecting the car, completely disassembling it and replacing individual body elements affected by corrosion or removing damaged areas and welding pads onto these areas. Installing pads does not solve the problem, it only slows down the development of through corrosion of the body. Replacing damaged elements from spare parts or manufacturing new elements will extend the service life of the body for another 10-15 years.

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