The steering rack is a very precise system that needs to be protected against external factors. A flexible housing protects it against water, sand and dust, extending its useful life. To do so, however, it has to be maintained in a perfect condition. Any crack or abrasion is a sign that the housing needs changing. Otherwise, the system will leak the lubricant and its elements will fail. Changing the housing on older cars is not very complicated nor time consuming, unlike on new cars.