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Corrosion Damage/Corrosion Repair Modern vehicle bodies are protected from corrosion In the long-term however, corrosion on a vehicle NOTE: Basic and in-depth training is offered on What is corrosion? Corrosion is destruction of a subsurface caused If the protective layers become damaged, The following factors lead to corrosion: • Mechanical damage such as stone chips and scratches which penetrate through to the steel • Damp interiors. • Unfavorable weather or environmental conditions, as may occur in areas with high • Insufficient corrosion protection after repairs. • Lack of care by the vehicle owner of the painted and corrosion proofed surfaces or areas on the In order to maintain long-term corrosion protection, In doing so, the follow areas must be inspected • Damage to the paint surface cause by scratches or stone impact must be suitably rectified • Damage to the PVC underbody protection or the PU stone chip protection must be refinished. • Damage to the PVC underbody protection or the PU stone chip protection must be refinished. • Incomplete or damaged sealing at clinched flanges must be renewed. • Check the cavity protection and renew it if incomplete. • Poorly installed or damaged covers and stone chip protection fixtures must always be renewed. • Check seals and seal carriers for wear and correct mounting. Any damaged seals must be • All rubber grommets and blanking plugs must be present and correctly installed. • A damp or wet floor inside the vehicle indicates that there are leaks in the bodywork. The interior The corrosion formation can vary in extent. With rust film or edge rust formation, the surface If the corrosion is just starting, with up to 1 mm • Clean the defective location. • Mechanically remove the rusting which is starting below the surface. • If the area is small, apply primer and allow it to dry, then use the paint pencil to touch up the If rust is already under the paint finish to the steel Furthermore, the existing traces of corrosion in the Finally a new paint finish must be applied in this NOTE: : In the general section there are several The outcome of this is the following repair • Remove the rusted-through part. • Remove the remaining traces of corrosion. • Offer up the new part. • Prepare the joint areas. G506661en 501-25- 38 Body Repairs - General Information 501-25- 38 DESCRIPTION AND OPERATION 201 |