Beyond formal training and certification, auto mechanics need certain personality traits and skills. They must have good customer-service skills, because they sometimes have to discuss car problems and solutions with clients. Shops rely on repeat clients and recommendations for business, so courtesy and patience with customers’ questions are important. Mechanics must be detail-oriented to find the cause of a mechanical or electronic malfunction. Mechanics need a steady hand and hand-eye coordination to use hand tools to disassemble engine parts or connect components. Technical skills are also a must, because mechanics use sophisticated diagnostic equipment and electrical-control systems to repair cars.