The invagination of BMW 5 Series A-pillar can be repaired. The depression of automobile A-pillar can be repaired by double-line method. Second-line repair is a very popular method to repair automobile dents. BMW 5 Series is a product of German BMW Company. Its model is a medium-sized car with fashionable appearance, which is favored by young successful people and occupies a certain market in the domestic middle and high-end car market.