You must not fix the car engine with the wrong meaning of the code. Due to the wrong meaning of the code, the car engine may get new problems. Some problems may be expensive to solve. The engine P0857 Code tells about the powertrain problem of the car engine and this problem is not very difficult solve. By the real meaning of the code, you can know about the problem. Moreover, these issues, while the company planned a hydraulically controlled system that could be converted from within the car, the version they realized had to be manually diverse in the engine section by hand tools.