The main advantages of rebuilding an engine are the connectivity and compatibility with the existing ECU and electrical system. The ECU is programmed to communicate with the engine that was originally installed in the vehicle. A rebuilt engine involves removing the engine from the vehicle and completely disassembling to be cleaned, and inspected. This process allows the technician to replace all damaged parts with new or refurbished parts. All replacement parts will consist of new gaskets, seals, and lubricants are used in the assembly of the rebuilt engine that will meet Mercedes Benz OEM standards. The most common components to be replaced include bearings, gaskets, seals, timing belt or chain, valve springs, and the oil pump. Major parts are replaced only if they are needed, and often include camshafts, crankshafts, and pistons. In the most severe cases, we will have to machine parts that have been warped.