Mercedes-Benz manufacturers some of the best engineered cars in the world. However, anyone who has a regular diet of Mercedes work in the shop quickly becomes familiar with the “different” way the Mercedes engineers design some of the systems on their vehicles. If you only see the occasional Benz in your shop, some of these differences in Mercedes-Benz systems may be confusing. These differences may be referred to by some as “over-engineering,” but once you understand the reasoning behind the differences, it becomes clear why these vehicles have achieved such enviable reliability record.