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Corrosion is a known phenomenon that the automotive industry needs to pay attention, once that several issues faced in the field had it as root cause. Indisputably is important spend resources in usage of proper materials and process based on chemical properties, minimum thickness, adhesion conditions, wear resistance, finish applicators, etc. to cover the parts in order to ensure robust protection against this phenomena; however, the key point is to optimize these resources once that the customer will buy/use the vehicle (not the part singly); so if develop a proper design in system level providing proper protection of the parts, despite of the part does not have the most efficient protection level, the customers will have a satisfactory experience during vehicle usage.

The unpleasant noise (creak) originated from latch-striker interaction, perceived mainly when the vehicle is submitted to uneven road conditions is generated by stick-slip phenomenon mainly due materials incompatibility of contact surfaces. Generally, eliminate this incompatibility is unfeasible due technical and/or economics constrains; this scenario makes it necessary to act in other fronts to neutralize the effects of that incompatibility. Reduce the coefficient of friction from one of contact surfaces is an alternative that can be easily applied at striker through a thin thickness coating with that property.